318 results on '"Pacific Northwest -- Environmental aspects"'
Search Results
2. Tsunami researchers hunt for clues about the next big Pacific Northwest quake
- Author
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Johnson, Carolyn Y.
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Pacific Northwest -- Environmental aspects ,Earthquake prediction -- Methods ,Tsunamis -- Environmental aspects -- United States ,Emergency management -- Methods ,Disaster planning ,General interest ,News, opinion and commentary - Abstract
Byline: Carolyn Y. Johnson BANDON, Ore. - The warnings of a looming cataclysm are ubiquitous along the Oregon Coast. On blue-and-white signs, a cartoon wave curls out of the sea, [...]
- Published
- 2024
Catalog
3. Giant storm hammers California, Northwest
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Bacon, John, Ortiz, Jorge, Santucci, Jeanine, and Rice, Doyle
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California -- Environmental aspects ,Pacific Northwest -- Environmental aspects ,Extreme weather -- Environmental aspects ,Winter storms -- Environmental aspects ,News, opinion and commentary - Abstract
Byline: John Bacon, Jorge Ortiz,, Jeanine Santucci and Doyle Rice, USA TODAY A bomb cyclone pounding Northern California and the Pacific Northwest with heavy rain and strong winds was already [...]
- Published
- 2024
4. Storms will bring flooding rain and mountain snow to California and Northwest
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Livingston, Ian
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Market trend/market analysis ,Floods -- Forecasts and trends -- United States ,Precipitation (Meteorology) -- Forecasts and trends ,Storms -- Forecasts and trends -- United States ,California -- Environmental aspects ,Pacific Northwest -- Environmental aspects - Abstract
Byline: Ian Livingston A pair of potent storm systems known as atmospheric rivers are spreading rounds of rain and snow across the Pacific Northwest and Northern California over the next [...]
- Published
- 2024
5. A cold front is bringing some relief to the Northwest -- but also wind
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Pacific Northwest -- Environmental aspects ,Cold waves (Meteorology) -- Forecasts and trends ,Market trend/market analysis ,General interest - Abstract
To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=nx-s1-5049868 BYLINE: KIRK SIEGLER HOST: AILSA CHANG AILSA CHANG: There is finally a reprieve coming for parts of the Northwestern U.S. Record-breaking heat [...] more...
- Published
- 2024
6. Effects of land use on summer thermal regimes in critical salmonid habitats of the Pacific Northwest
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Kovach, Ryan P., Muhlfeld, Clint C., Chokhachy, Robert Al-, Ojala, Jeffrey V., and Archer, Eric K.
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Pacific Northwest -- Environmental aspects ,Land use -- Environmental aspects -- Analysis -- United States ,Salmon -- Environmental aspects ,Land management ,Wildlife conservation ,Land use controls ,Global temperature changes ,Climate change ,Fishes ,Livestock ,Accounting ,Earth sciences - Abstract
The effect of climate change on stream temperature regimes is of significant concern to natural resource managers focused on protecting cold-water-dependent species. Nevertheless, understanding of how human land-use activities may act to exacerbate the effects of climate change on stream temperature regimes is limited. Using extensive stream temperature data with high-resolution climate and habitat data, we quantified how land management activities are related to summer stream temperatures across the Pacific Northwest, USA. We then described the distribution of land management practices influencing summer thermal regimes relative to the distribution of salmonid fish species of conservation concern. After accounting for climatic and geophysical variation, we detected a strong relationship between livestock grazing and summer thermal regimes. Maximum, average, and diel variation in water temperature was greater where livestock grazing was present. Livestock grazing was widespread, occurring in 43%-100% of sites supporting salmonid species of conservation concern. Thus, current land management practices may be intensifying the effects of ongoing climate change in freshwater habitats, acting to further threaten cold-water fishes of conservation concern. L'effet des changements climatiques sur les regimes thermiques des cours d'eau constitue une importante preoccupation pour les gestionnaires de ressources naturelles qui reuvrent a la protection des especes dependant de l'eau froide. La comprehension de l'exacerbation des effets des changements climatiques sur les regimes thermiques des cours d'eau que pourraient causer les activites humaines d'utilisation du sol est toutefois limitee. En combinant d'abondantes donnees sur la temperature des cours d'eau a des donnees climatiques et sur l'habitat de haute resolution, nous quantifions le lien entre les activites d'amenagement du territoire et les temperatures estivales de cours d'eau dans le Pacific Northwest (Etats-Unis). Nous decrivons ensuite la repartition des pratiques d'amenagement du territoire qui influencent les regimes thermiques estivaux au vu de la repartition des especes de salmonides dont la conservation est preoccupante. Apres avoir pris en compte les variations climatiques et geophysiques, nous observons une forte relation entre le pacage du betail et les regimes thermiques estivaux. Les variations maximums, moyennes et nycthemerales des temperatures de l'eau sont les plus grandes en presence de pacage d'animaux. Ce dernier est repandu, etant present dans de 43% a 100% des sites supportant des especes de salmonides dont la conservation est preoccupante. Les pratiques actuelles d'amenagement du territoire pourraient donc intensifier les effets des changements climatiques en cours dans les habitats d'eau douce, rehaussant la menace qui pese sur les poissons d'eau froide dont la conservation est preoccupante. [Traduit par la Redaction], Introduction Water temperature is a fundamental driver of numerous biological processes within freshwater ecosystems, ranging from simple cellular metabolism to complex community dynamics (Caissie 2006). Thus, it is concerning that [...] more...
- Published
- 2019
- Full Text
- View/download PDF
7. The early heat wave gripping the Northwest is rare - and worrying
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Kommenda, Niko, Ahmed, Naema, and Muyskens, John
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Pacific Northwest -- Environmental aspects ,Extreme weather -- Forecasts and trends ,Hot weather -- Forecasts and trends ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Niko Kommenda, Naema Ahmed and John Muyskens Large parts of the Pacific Northwest from Oregon and Washington to British Columbia are bracing for unusually high temperatures this weekend. Some [...] more...
- Published
- 2023
8. Here's where record heat may envelop the West this weekend
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Livingston, Ian
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Pacific Northwest -- Environmental aspects ,Extreme weather -- Forecasts and trends ,Hot weather -- Forecasts and trends ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Ian Livingston A string of days with record and near-record warmth is unfolding across the Pacific Northwest and southwest Canada, starting Friday then persisting through the weekend and into [...] more...
- Published
- 2023
9. Atmospheric river blasting Northwest with heavy rain, snow and strong winds
- Author
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Cappucci, Matthew
- Subjects
Pacific Northwest -- Environmental aspects ,Rain and rainfall -- Forecasts and trends ,Floods -- Forecasts and trends -- United States ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci An atmospheric river is bombarding the Pacific Northwest, bringing heavy rain to the valleys, snow to the mountains and strong winds. Some of the storminess from the [...]
- Published
- 2022
10. Heat wave lessons learned in Pacific Northwest
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Pacific Northwest -- Environmental aspects ,Hot weather -- Forecasts and trends -- Environmental aspects ,Market trend/market analysis ,General interest - Abstract
To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=1114075017 BYLINE: JOHN RYAN HOST: MARY LOUISE KELLY MARY LOUISE KELLY: The Pacific Northwest is feeling its first heat wave of the year. [...] more...
- Published
- 2022
11. Pacific Northwest tribes want to hold American leaders accountable and remove 4 dams
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Pacific Northwest -- Environmental aspects ,Dams -- Environmental aspects -- United States ,Salmon -- Protection and preservation ,Indian country (United States) -- Environmental aspects ,General interest - Abstract
To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=1110338556 BYLINE: KIRK SIEGLER HOST: AILSA CHANG AILSA CHANG: In the Pacific Northwest, tribal governments are pressuring President Biden to make good on [...] more...
- Published
- 2022
12. Politics
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Western Canada -- Environmental aspects ,Pacific Northwest -- Environmental aspects ,Florida -- Safety and security measures -- Environmental aspects ,Surfside Condominium Building Collapse, 2021 -- Casualties ,Extreme weather -- Casualties ,Subsidences (Earth movements) -- Analysis ,Hot weather -- Casualties ,Infrastructure (Economics) -- Laws, regulations and rules -- Political aspects ,Building failures -- Casualties -- United States ,Bipartisanship (Politics) -- Forecasts and trends ,Assistance in emergencies -- Management ,Government regulation ,Company business management ,Market trend/market analysis ,Business ,Economics ,Business, international ,Democratic Party (United States) -- Social policy -- Tax policy - Abstract
Much of America's Pacific north-west and Canada's west coast baked in a heatwave. Police in Vancouver reported more than 130 sudden deaths, most of them old people or those with [...]
- Published
- 2021
13. Exceptional heat hits Pacific Northwest
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Pacific Northwest -- Environmental aspects ,Extreme weather -- Forecasts and trends ,Hot weather -- Forecasts and trends ,Market trend/market analysis ,Aerospace and defense industries ,Astronomy ,High technology industry ,Telecommunications industry - Abstract
Greenbelt MD (SPX) Jun 30, 2021 Extraordinary heat events occur around the planet during most summers, but the current heatwave in the Pacific Northwest is truly exceptional. In June 2021, [...]
- Published
- 2021
14. Heat to wane in Northeast as Pacific Northwest prepares to roast
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Cappucci, Matthew
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Pacific Northwest -- Environmental aspects ,Northeastern United States -- Environmental aspects ,Hot weather -- Influence -- Forecasts and trends ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci Heat alerts blanket the Pacific Northwest, including much of Oregon and Washington state, where temperatures are set to spike to 110 degrees in the days ahead. Northern [...] more...
- Published
- 2022
15. Northwest grapples with days of extreme heat, a year after deadly event
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Stringer, Grant and Scruggs, Gregory
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Pacific Northwest -- Environmental aspects ,Extreme weather -- Environmental aspects ,Weather forecasting ,Hot weather -- Environmental aspects ,General interest ,News, opinion and commentary - Abstract
Byline: Grant Stringer and Gregory Scruggs SALEM, Ore. - Even in the evening Tuesday, people took their smoke breaks in the shade. By 6 p.m. outside the Recovery Outreach Community [...]
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- 2022
16. Heat to wane in Northeast as Pacific Northwest prepares to roast
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Cappucci, Matthew
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Pacific Northwest -- Environmental aspects ,California Wildfires, 2022 ,Hot weather -- Influence -- Forecasts and trends ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci Heat alerts blanket the Pacific Northwest, including much of Oregon and Washington state, with temperatures set to spike to 110 degrees in the days ahead. Northern California [...] more...
- Published
- 2022
17. Exceptional June rain soaks Pacific Northwest due to atmospheric river
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Samenow, Jason
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Pacific Northwest -- Environmental aspects ,Rain and rainfall -- Environmental aspects -- Forecasts and trends ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Jason Samenow Normally by June, the Pacific Northwest has entered its dry season, and the skies above Seattle and Portland are sparkling blue. But the calendar seemed to turn [...]
- Published
- 2022
18. Storm system could cause avalanches in Northwest
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Rice, Doyle
- Subjects
Pacific Northwest -- Environmental aspects ,Floods -- Forecasts and trends -- United States ,Storms -- Forecasts and trends -- Environmental aspects ,Avalanches -- Forecasts and trends -- United States ,Market trend/market analysis ,News, opinion and commentary - Abstract
Byline: Doyle Rice, USA TODAY An 'extreme' atmospheric river was barreling into the Pacific Northwest on Monday, and with it will come the threat of flooding and avalanches, forecasters say. [...]
- Published
- 2022
19. Harsh Temperatures In The Pacific Northwest Take A Toll On Farmers' Crops
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Pacific Northwest -- Environmental aspects ,Agricultural industry -- Environmental aspects ,Hot weather -- Forecasts and trends ,Market trend/market analysis ,General interest - Abstract
To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=1011613166 BYLINE: ANNA KING HOST: NOEL KING NOEL KING: Record heat in Washington and Oregon is hurting agriculture on two fronts - both [...] more...
- Published
- 2021
20. The Pacific Northwest Battles Record High Temperatures, Many Without Air Conditioning
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Pacific Northwest -- Environmental aspects ,Hot weather -- Forecasts and trends -- Health aspects ,Air conditioning -- Usage -- Environmental aspects ,Market trend/market analysis ,General interest - Abstract
To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=1011415120 BYLINE: PAIGE BROWNING HOST: ARI SHAPIRO ARI SHAPIRO: The Northwest is sweltering under this week's historic heat wave. Roads are buckling. Cables [...] more...
- Published
- 2021
21. It's Peak Harvest Season In The Pacific Northwest, But Too Hot To Be In The Fields
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Pacific Northwest -- Environmental aspects ,Agriculture -- Environmental aspects ,Hot weather -- Forecasts and trends -- Health aspects ,Market trend/market analysis ,General interest - Abstract
To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=1011043714 BYLINE: MONICA SAMAYOA HOST: ARI SHAPIRO ARI SHAPIRO: Magenta is the color that the National Weather Service uses to show excessive heat [...] more...
- Published
- 2021
22. A Dangerous Heat Wave Grips The Pacific Northwest
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Pacific Northwest -- Environmental aspects ,Hot weather -- Forecasts and trends ,Market trend/market analysis ,General interest - Abstract
To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=1010832620 BYLINE: DEENA PRICHEP HOST: NOEL KING NOEL KING: The National Weather Service says it could be 110 degrees today or even hotter [...] more...
- Published
- 2021
23. Extreme cold targets western Canada, Pacific Northwest into next week
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Cappucci, Matthew
- Subjects
Pacific Northwest -- Environmental aspects ,Extreme weather -- Forecasts and trends ,Cold weather -- Forecasts and trends ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci First, it was fires fueled by a heat wave, then came the fall floods, and now it's a deep freeze. A blast of extremely cold air with [...]
- Published
- 2021
24. Atmospheric river soaks Pacific Northwest as 'November witch' socks Dakotas, Minnesota
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Samenow, Jason and Cappucci, Matthew
- Subjects
Pacific Northwest -- Environmental aspects ,Storms -- Influence -- Forecasts and trends -- Western United States ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Jason Samenow and Matthew Cappucci Two powerful storm systems are walloping parts of the nation's northern tier and are expected to cause serious disruptions and travel headaches through Friday. [...] more...
- Published
- 2021
25. Brewing storm to sock Pacific Northwest, Upper Midwest
- Author
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Cappucci, Matthew
- Subjects
Pacific Northwest -- Environmental aspects ,Storms -- Forecasts and trends -- United States ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci A potent storm system in the northeastern Pacific will sling a plume of deep tropical moisture into Washington, Oregon and California, bringing heavy rain, wind and accumulating [...] more...
- Published
- 2021
26. Prediction of Douglas-fir fertilizer response using biogeoclimatic properties in the coastal Pacific Northwest
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Littke, K.M., Harrison, R.B., Zabowski, D., Ciol, M.A., and Briggs, D.G.
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Pacific Northwest -- Environmental aspects ,Fertilizers -- Environmental aspects -- Physiological aspects ,Douglas fir -- Environmental aspects -- Physiological aspects ,Earth sciences - Abstract
Fertilizer response of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) has been related to site and soil properties in the past, but the models have explained only about half of the variation in these investigations. Fertilizer response and percent response after two years were examined, according to mapped and measured biogeoclimatic variables, for 71 Douglas-fir installations in the coastal Pacific Northwest. Paired-tree installations consisted of 12-20 pairs of Douglas-fir trees with one tree fertilized with urea at 224 kg N x [ha.sup.-1]. Pearson correlation coefficients and boosted regression tree (BRT) models were used to determine the best predictor variables and models of Douglas-fir fertilizer response. The BRT models, using the combination of mapped and measured variables, performed the best for predicting fertilizer response. Basal area and volume responses were most related to high forest floor and surface soil carbon to nitrogen ratios. Basal area mean annual increment (MAI) and site index were both negatively correlated with fertilizer response. Also, low basal area MAI was the most important tree measurement for predicting fertilizer response in the BRT models. Installations with many of the predictors from the BRT models (>66% of the model criteria) were found to have a significantly greater fertilizer response than installations with only a few predictors ( Key words: Douglas-fir, fertilizer response, carbon to nitrogen ratio, basal area mean annual increment, Pacific Northwest. Dans les etudes anterieures la reponse du douglas de Menzies (Pseudotsuga menziesii (Mirb.) Franco) a la fertilisation a ete reliee a la station et aux proprietes du sol mais les modeles ont explique seulement environ la moitie de la variation. La reponse a la fertilisation et le pourcentage de reaction apres deux ans ont ete examines en fonction de variables biogeoclimatiques mesurees et cartographiees dans 71 dispositifs de douglas de Menzies situes dans la region cotiere du Pacific Northwest. Les dispositifs etaient constitues de 12 a 20 paires de tiges de douglas de Menzies dont une des tiges etait fertilisee avec 224 kg N x [ha.sup.-1] sous forme d'uree. Les correlations de Pearson et des modeles d'arbre de regression augmentee (BRT) ont ete utilises pour determiner quels etaient les meilleures variables de prediction et les meilleurs modeles de reponse du douglas de Menzies a la fertilisation. Les modeles BRT utilisant une combinaison de variables mesurees et cartographiees avaient la meilleure performance pour predire la reponse a la fertilisation. La reponse en surface terriere et en volume etait beaucoup reliee a des rapports C:N eleves dans la couverture morte et le sol de surface. L'accroissement annuel moyen (AAM) en surface terriere et l'indice de station etaient negativement correles avec la reponse a la fertilisation. Un faible AAM en surface terriere etait egalement la mesure dendrometrique la plus importante pour predire la reponse a la fertilisation dans les modeles BRT. Les dispositifs ou etaient presents plusieurs des predicteurs des modeles BRT (>66% des criteres des modeles) avaient une reponse a la fertilisation significativement plus forte que les dispositifs ou seulement quelques predicteurs ( Mots-cles: douglas de Menzies, reponse a la fertilisation, rapport C:N, accroissement annuel moyen en surface terriere, Pacific Northwest., Introduction Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) is the most important commercial tree species in the coastal Pacific Northwest (PNW). Currently, Douglas-fir plantations are being intensively managed to increase growth, shorten [...] more...
- Published
- 2014
- Full Text
- View/download PDF
27. Rain brings fire relief in Pacific Northwest, but winds fan flames in California
- Author
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Leonard, Diana
- Subjects
Sequoia National Forest, California -- Environmental aspects ,Pacific Northwest -- Environmental aspects ,California Wildfires, 2021 ,Rain and rainfall -- Environmental aspects ,Winds -- Environmental aspects ,Wildfires -- Environmental aspects ,General interest ,News, opinion and commentary - Abstract
Byline: Diana Leonard The weather system that brought soaking rain and fire relief to the Pacific Northwest and Northern California this weekend also kicked up winds that spread fire in [...]
- Published
- 2021
28. Drenching rains to visit Pacific Northwest, northern California
- Author
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Cappucci, Matthew
- Subjects
Northern California -- Environmental aspects ,Pacific Northwest -- Environmental aspects ,Rain and rainfall -- Forecasts and trends ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci Parts of the Pacific Northwest are under a fire weather watch through Friday, when a combination of dry conditions, hot temperatures and low humidity are creating a [...]
- Published
- 2021
29. Fire danger eases some in West, but smothering smoke persists
- Author
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Samenow, Jason
- Subjects
Pacific Northwest -- Environmental aspects ,Oregon Wildfires, 2021 -- Reports ,Wildfires -- Reports ,General interest ,News, opinion and commentary - Abstract
Byline: Jason Samenow Friday morning brought raindrops to parts of the Pacific Northwest, a welcome sight after weeks without precipitation. In more good news, red flag warnings for high fire [...]
- Published
- 2021
30. Experts express concerns for animal safety as heat waves continue to rip through the Pacific Northwest
- Author
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Suggs, David
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Pacific Northwest -- Environmental aspects ,Animal welfare -- Methods -- Health aspects ,Hot weather -- Environmental aspects -- Health aspects ,Animal heat -- Care and treatment -- Health aspects ,General interest ,News, opinion and commentary - Abstract
Byline: David Suggs Record heat waves have scorched the Pacific Northwest in recent weeks, prompting a series of raging fires and devastating droughts across the region. The extreme weather has [...] more...
- Published
- 2021
31. Heat-Related Deaths Climb Into the Hundreds in the Pacific Northwest
- Author
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Olmos, Sergio, Choi-Schagrin, Winston, and Hubler, Shawn
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Pacific Northwest -- Environmental aspects ,Heatstroke -- Casualties -- Forecasts and trends ,Hot weather -- Environmental aspects -- Casualties ,Global warming -- Environmental aspects ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
The heat wave in parts of the Pacific Northwest played a role in the deaths of dozens of people, some of whom lived alone. PORTLAND, Ore. -- The heat took [...]
- Published
- 2021
32. Heat Risk Soars in Canada and Northwest
- Author
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Isai, Vjosa, Bilefsky, Dan, and Hubler, Shawn
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Canada -- Environmental aspects ,Pacific Northwest -- Environmental aspects ,Heatstroke -- Patient outcomes ,Extreme weather -- Health aspects -- Environmental aspects ,Hot weather -- Environmental aspects -- Health aspects ,General interest ,News, opinion and commentary - Abstract
Hyperthermia claimed nearly a dozen lives in one day in one Washington county. A small town in British Columbia set Canada's heat record at just over 121 degrees Fahrenheit. Hundreds [...]
- Published
- 2021
33. Heat Wave In Northwest Like Nothing Seen Before
- Author
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Bhatia, Aatish, Fountain, Henry, and Quealy, Kevin
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Pacific Northwest -- Environmental aspects ,Extreme weather -- Reports ,Hot weather -- Reports ,Atmospheric temperature -- Reports ,General interest ,News, opinion and commentary - Abstract
Heat waves and the ''heat domes'' that can cause them aren't rare, but the recent weather that's been smothering the Pacific Northwest has little precedent in at least four decades [...]
- Published
- 2021
34. 'Post Reports' podcast: Surviving the heat dome
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Post, The Washington
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Pacific Northwest -- Environmental aspects ,Vaccination -- Demographic aspects ,Extreme weather -- Environmental aspects -- Reports ,Hot weather -- Reports -- Environmental aspects ,Climatic changes -- Environmental aspects ,Burn out (Psychology) -- Prevention ,Company distribution practices ,General interest ,News, opinion and commentary - Abstract
Byline: The Washington Post 'Post Reports' is the daily podcast from The Washington Post. Unparalleled reporting. Expert insight. Clear analysis. Everything you've come to expect from the newsroom of The [...] more...
- Published
- 2021
35. Weather Service warns of 'dangerous' and 'historic' heat wave in Pacific Northwest
- Author
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Cappucci, Matthew and Samenow, Jason
- Subjects
United States. National Weather Service -- Reports ,Pacific Northwest -- Environmental aspects ,Extreme weather -- Reports ,Hot weather -- Forecasts and trends ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci and Jason Samenow Confidence is increasing that an episode of historic heat will torch much of the Pacific Northwest late this week into early next, with temperatures [...]
- Published
- 2021
36. Understanding soil nutrients and characteristics in the Pacific Northwest through parent material origin and soil nutrient regimes
- Author
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Littke, K.M., Harrison, R.B., Briggs, D.G., and Grider, A.R.
- Subjects
Pacific Northwest -- Environmental aspects ,Fir -- Environmental aspects -- Health aspects ,Soil chemistry -- Research ,Balsam fir -- Environmental aspects -- Health aspects ,Soils -- Nitrogen content ,Earth sciences - Abstract
A convenient method is necessary for assessing the availability of soil nitrogen in plantation Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands in the Pacific Northwest. The objective of this research was to use soil parent materials (SPMs) and soil nutrient regimes (SNRs) to determine the most efficient method to characterize soil nitrogen availability in Douglas-fir stands. It was hypothesized that SPMs and SNRs would effectively separate stands with distinctive climate, site, and soil characteristics and forest floor and soil carbon and nitrogen reserves. At 60 Douglas-fir stands, SPMs and SNRs were determined, and soil particle percentages, soil depth, and forest floor and soil nitrogen and carbon contents were measured to a depth of 1 m. Soils of sedimentary origin and very rich and rich SNRs contained greater nitrogen and carbon contents than those from glacial and igneous origins and medium SNRs. Sedimentary SPMs and very rich SNRs were developed from older parent materials and had significantly greater soil depths and finer textures than those from glacial SPMs and medium SNRs. SNRs and SPMs are recommended as good estimators of soil nutrient pools and soil characteristics in Douglas-fir plantation forests of the Pacific Northwest. Resume: Une methode pratique pour evaluer les nutriments et les autres caracteristiques du sol est necessaire afin de comprendre l'influence de la disponibilite de l'azote (N) et de l'eau sur le douglas de Menzies (Pseudotsuga menziesii (Mirb.) Franco) plante sur une grande variete de types de sol dans le Pacific Northwest. L'objectif de ce projet de recherche consis-tait a utiliser le materiau d'origine (MO) et le regime nutritif du sol (RNS) pour determiner la fa on la plus efficace de caracteriser la disponibilite de N dans le sol des plantations forestieres de douglas de Menzies partout dans la region ctiere du Pacific Northwest. Nous avons pose l'hypothese que le MO et le RNS pourraient separer les peuplements forestiers qui se distinguent par le climat, les caracteristiques de la station, les caracteristiques du sol et les reserves de C et N dans la couverture morte et le sol. Soixante plantations de douglas de Menzies ont ete etablies du nord de l'le de Vancouver en Colombie-Britannique au sud de l'Oregon pour tester cette hypothese. Les types de MO (glaciaire, igne et sedimentaire) et les RNS (moyen, riche et tres riche) ont ete evalues a l'aide de cartes geologiques, de series de sol et d'observations dans des fosses pedologiques. Un fosse pedologique a ete creuse dans chaque plantation pour mesurer les nutriments dans la couverture morte, le pourcentage de particules du sol, la profondeur du sol et la teneur en C et N du sol jusqu'a une profondeur d'un metre. Les sols mineraux dont le materiau d'origine etait sedimentaire avaient une teneur en C et N plus elevee que les sols dont le materiau d'origine etait glaciaire ou igne. Les sols classes riches ou tres riches selon le RNS contenaient plus de C et N que les sols dont le RNS etait moyen. Les sols dont le materiau d'origine etait sedimentaire et les sols tres riches s'etaient developpes a partir d'un materiau d'origine plus vieux et etaient plus profonds, avaient un horizon A plus epais et une texture plus fine que les sols dont le materiau d'origine etait glaciaire et que ceux dont le RNS etait moyen. Le RNS et le MO sont recommandes etant de bons estimateurs des reserves de nutriments dans le sol et des caracteristiques du sol des plantations forestieres de douglas de Menzies dans le Pacific Northwest. [Traduit par la Redaction], Introduction Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) is native to the Pacific Northwest and is the most commonly utilized forest plantation species across the region (Franklin and Dyrness 1988). It grows [...] more...
- Published
- 2011
- Full Text
- View/download PDF
37. Three recent flavors of drought in the Pacific Northwest
- Author
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Bumbaco, Karin A. and Mote, Philip W.
- Subjects
Pacific Northwest -- Environmental aspects ,Droughts -- United States ,Droughts -- Environmental aspects ,Atmospheric circulation -- Research ,Earth sciences - Abstract
In common with much of the western United States, the Pacific Northwest (defined in this paper as Washington and Oregon) has experienced an unusual number of droughts in the past decade. This paper describes three of these droughts in terms of the precipitation, temperature, and soil moisture anomalies, and discusses different drought impacts experienced in the Pacific Northwest (PNW). For the first drought, in 2001, low winter precipitation in the PNW produced very low streamflow that primarily affected farmers and hydropower generation. For the second, in 2003, low summer precipitation in Washington (WA), and low summer precipitation and a warm winter in Oregon (OR) primarily affected streamflow and forests. For the last, in 2005, a lack of snowpack due to warm temperatures during significant winter precipitation events in WA, and low winter precipitation in OR, had a variety of different agricultural and hydrologic impacts. Although the proximal causes of droughts are easily quantified, the ultimate causes are not as clear. Better precipitation observations in the PNW are required to provide timely monitoring of conditions leading to droughts to improve prediction in the future. DOI: 10.1175/2010JAMC2423.1 more...
- Published
- 2010
38. Long-term nitrate leaching under vegetable production with cover crops in the Pacific Northwest
- Author
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Feaga, Jeffrey B., Selker, John S., Dick, Richard P., and Hemphill, Delbert D.
- Subjects
Pacific Northwest -- Environmental aspects ,Nitrates -- Environmental aspects ,Plant-soil relationships -- Research ,Earth sciences - Abstract
Nitrate (N[O.sub.3.sup.-]-N) lost through leaching contaminates the groundwater in many agricultural areas. Understanding the relationship between leaching and climate is an important consideration for developing nutrient management strategies. Soil water was sampled for 11 yr under plots with summer vegetables grown in the Willamette Valley, Oregon, with and without winter cover crops. A randomized complete-block, split-plot design was employed with three N fertilizer application rates (N0 for no fertilizer, N1 for an intermediate input, and N2 for a full, recommended N input). Fall-seeded cover crops included cereal rye (Secale cereale L. var. Wheeler), triticale (Triticosecale X L. vat. Celia), and a common vetch (Vicia sativa)/triticale mix. Twenty-six, 0.26-[m.sup.2] passive capillary samplers (PCAPS), which are capable of sampling in unsaturated and saturated conditions, allowed for the uninterrupted measurement of soil water and solute flux at a depth of 1.2 m. Eleven-year flow-weighted average N[O.sub.3.sup.-]-N concentrations (mg [L.sup.-1]) for fallow (F) and cover cropped (CC) treatments were 16.7 and 11.9 for the N2 fertilizer treatment, 9.9 and 6.4 for the N1 fertilizer treatment, and 7.0 and 4.1 for the NO treatment. Annual average N[O.sub.3.sup.-]-N mass losses (kg [ha.sup.-1]) for F and CC treatments were 76 and 46 for the N2 fertilizer treatment, 40 and 30 for the N1 fertilizer treatment, and 29 and 17 for the NO treatment. Fully fertilized CC and F treatments consistently exceeded the EPA's 10 mg [L.sup.-1] drinking water standard set for N[O.sub.3.sup.-]-N. The timing and quantity of yearly rainfall, particularly from October to December, was a dominant contributor to the fluctuations of N[O.sub.3.sup.-]-N concentrations and mass losses. Soil N[O.sub.3.sup.-]-N and bromide soil concentration profiles suggested that high leaching losses in leaching Year 2001 were related to the previous drier-than-average winter and the early arrival of rainfall following the vegetable harvest. The long-term water quality benefits observed under the CC treatments suggest that an increase in organically bound N is occurring. doi:10.2136/sssaj2008.0178 more...
- Published
- 2010
- Full Text
- View/download PDF
39. Atmospheric river wallops Pacific Northwest with flooding, landslides and power outages
- Author
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Cappucci, Matthew
- Subjects
Pacific Northwest -- Environmental aspects ,Rain and rainfall -- Forecasts and trends ,Floods -- Forecasts and trends ,Power failure -- Forecasts and trends ,Mudflows -- Forecasts and trends -- United States ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci A top-tier atmospheric river soaked the Pacific Northwest during the first half of the workweek, bringing extreme rainfall approaching ten inches, severe wind gusts and a litany [...] more...
- Published
- 2021
40. Storm brings flash flood warnings, mudslides to Pacific Northwest
- Author
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Cappucci, Matthew
- Subjects
Pacific Northwest -- Environmental aspects ,Floods -- Environmental aspects -- Forecasts and trends -- United States ,Storms -- Environmental aspects -- Forecasts and trends -- United States ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci The first of two 'atmospheric rivers' is drenching the Pacific Northwest, causing flooding, mudslides and strong winds in parts of coastal Oregon and Washington. Up to 10 [...] more...
- Published
- 2021
41. Heavy rain could lead to Pacific Northwest flooding
- Author
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Cappucci, Matthew
- Subjects
Pacific Northwest -- Environmental aspects ,Rain and rainfall -- Forecasts and trends ,Floods -- Forecasts and trends -- United States ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Matthew Cappucci A stream of moisture-loaded air will drench the Pacific Northwest this week, dumping up to 10 inches through midweek. Flooding is expected, and landslides are possible, in [...] more...
- Published
- 2021
42. Data envelopment analysis of technical efficiency and productivity growth in the US Pacific Northwest sawmill industry
- Author
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Helvoigt, Ted L. and Adams, Darius M.
- Subjects
Pacific Northwest -- Environmental aspects ,Electronic data processing -- Methods -- Technology application -- Environmental aspects ,Forest productivity -- Evaluation -- Environmental aspects -- Methods -- Technology application ,Sawmills -- Environmental aspects -- Technology application -- Methods ,Forest management -- Technology application -- Methods -- Environmental aspects ,Earth sciences ,Technology application ,Evaluation ,Methods ,Environmental aspects - Abstract
This paper uses data envelopment analysis (DEA) to characterize the changing production frontier (technical efficiency, productivity growth, technical and efficiency change, and returns to scale) of the sawmilling industry in the Pacific Northwest (PNW) US using geographical panel data for the period 1968-2002. Unlike past DEA studies, we develop confidence intervals for all estimates using an improved bootstrapping method. The results indicate that the gap between the least and most efficient regions in PNW has grown and the least efficient regions are falling further behind the most efficient regions. For the Oregon regions, the null hypothesis of constant returns to scale (CRS) could not be rejected for any year. For the Washington regions, returns to scale varied year by year, although only two of the five regions showed strong tendencies away from CRS. For PNW as a whole, mean productivity growth was 0.5% per year between 1968 and 1992. Between 1992 and 2002, the regional mean was 1.3%, although with wide variation across regions. DEA results indicate that the vast majority of productivity growth in the PNW sawmilling industry between 1968 and 2002 was due to technical change. Improvements in scale efficiency played a very small role, and efficiency change was zero or negative. Cet article utilise la methode d'enveloppement des donnees (DEA) pour caracteriser les changements de la frontiere de production (efficacite technique, croissance de la productivite, changements technique et d'efficacite et rendements d'echelle) de l'industrie du sciage du Nord-Ouest americain en utilisant des donnees geographiques de panel pour la periode de 1968 a 2002. Contrairement aux etudes de DEA anterieures, nous developpons des intervalles de confiance pour toutes les estimations en utilisant une methode bootstrap amelioree. Les resultats indiquent que l'ecart entre les regions les moins efficaces et les plus efficaces du Nord-Ouest americain s'est accru et que les regions les moins efficaces se retrouvent plus loin derriere les regions les plus efficaces. Pour les regions de l'Oregon, l'hypothese nulle d'un rendement d'echelle constant ne peut etre rejetee pour aucune des annees. Pour les regions de l'Etat de Washington, les rendements d'echelle varient d'annee en annee, bien que seulement deux des cinq regions aient demontre une forte tendance a s'eloigner du rendement d'echelle constant. Pour le Nord-Ouest americain dans son ensemble, la croissance de la productivite a atteint en moyenne 0,5 % par annee entre 1968 et 1992. Entre 1992 et 2002, la moyenne regionale a ete de 1,3 %, mais il y avait de fortes variations entre les regions. Les resultats de la DEA indiquent que la plus grande partie de la croissance de la productivite de l'industrie du sciage du Nord-Ouest americain entre 1968 et 2002 est due a des changements techniques. Les ameliorations dans l'efficacite d'echelle ont tres peu contribue et l'impact du changement d'efficacite a ete nul ou negatif. [Traduit par la Redaction], Introduction Changes in the supply of timber from private and public lands and ever increasing globalization have resulted in a sawmilling industry in the US Pacific Northwest (PNW; Oregon and [...] more...
- Published
- 2008
43. Developing native plant germplasm for national forests and grasslands in the Pacific Northwest
- Author
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Erickson, Vicky J.
- Subjects
Pacific Northwest -- Environmental aspects ,Revegetation -- Methods ,Germplasm resources, Plant -- Research ,Forest reserves -- Protection and preservation ,Grasslands -- Protection and preservation ,Biological sciences - Published
- 2008
44. Impact of climate change on Pacific Northwest hydropower
- Author
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Markoff, Matthew S. and Cullen, Alison C.
- Subjects
Northwest Power and Conservation Council ,Pacific Northwest -- Environmental aspects ,Climatic changes -- Influence ,Water-power -- Environmental aspects ,Earth sciences - Abstract
Byline: Matthew S. Markoff (1), Alison C. Cullen (1) Abstract: The Pacific Northwest (PNW) hydropower resource, central to the region's electricity supply, is vulnerable to the impacts of climate change. The Northwest Power and Conservation Council (NWPCC), an interstate compact agency, has conducted long term planning for the PNW electricity supply for its 2005 Power Plan. In formulating its power portfolio recommendation, the NWPCC explored uncertainty in variables that affect the availability and cost of electricity over the next 20 years. The NWPCC conducted an initial assessment of potential impacts of climate change on the hydropower system, but these results are not incorporated in the risk model upon which the 2005 Plan recommendations are based. To assist in bringing climate information into the planning process, we present an assessment of uncertainty in future PNW hydropower generation potential based on a comprehensive set of climate models and greenhouse gas emissions pathways. We find that the prognosis for PNW hydropower supply under climate change is worse than anticipated by the NWPCC's assessment. Differences between the predictions of individual climate models are found to contribute more to overall uncertainty than do divergent emissions pathways. Uncertainty in predictions of precipitation change appears to be more important with respect to impact on PNW hydropower than uncertainty in predictions of temperature change. We also find that a simple regression model captures nearly all of the response of a sequence of complex numerical models to large scale changes in climate. This result offers the possibility of streamlining both top-down impact assessment and bottom-up adaptation planning for PNW water and energy resources. Author Affiliation: (1) Daniel J. Evans School of Public Affairs, University of Washington, Box 353055, Seattle, WA, 98195-3055, USA Article History: Registration Date: 28/06/2007 Received Date: 31/08/2005 Accepted Date: 10/05/2007 Online Date: 25/07/2007 more...
- Published
- 2008
45. Dense smoke smothers Pacific Northwest, shutting residents indoors and complicating fire response
- Author
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Hawkins, Derek and Schmidt, Samantha
- Subjects
Pacific Northwest -- Environmental aspects ,Air quality -- Forecasts and trends ,Wildfires -- Environmental aspects ,Smoke -- Environmental aspects -- Health aspects ,Market trend/market analysis ,General interest ,News, opinion and commentary - Abstract
Byline: Derek Hawkins and Samantha Schmidt Massive clouds of smoke from the Pacific Northwest wildfires lingered over the region Sunday, posing serious health risks for millions of people and complicating [...] more...
- Published
- 2020
46. Dense smoke smothers Pacific Northwest, shutting residents indoors and complicating fire response
- Author
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Hawkins, Derek
- Subjects
Pacific Northwest -- Environmental aspects ,Wildfires -- Environmental aspects -- Health aspects ,Smoke -- Environmental aspects -- Health aspects ,President of the United States -- Powers and duties ,General interest ,News, opinion and commentary - Abstract
Byline: Derek Hawkins Massive clouds of smoke from the Pacific Northwest wildfires lingered over the region Sunday, posing serious health risks for millions of people and complicating firefighting efforts even [...] more...
- Published
- 2020
47. Comparison of fire scars, fire atlases, and satellite data in the northwestern United States
- Author
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Shapiro-Miller, Lauren B., Heyerdahl, Emily K., and Morgan, Penelope
- Subjects
Pacific Northwest -- Environmental aspects ,Forest fire research -- Usage -- Environmental aspects ,Artificial satellites in surveying -- Usage -- Environmental aspects ,Earth sciences ,Usage ,Environmental aspects - Abstract
Abstract: We evaluated agreement in the location and occurrence of 20th century fires recorded in digital fire atlases with those inferred from fire scars that we collected systematically at one [...] more...
- Published
- 2007
48. Community involvement in urban watershed management: from the US Pacific Northwest to Ho Chi Minh City, Vietnam
- Author
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Phung Thuy Phuong
- Subjects
Pacific Northwest -- Environmental aspects ,Pacific Northwest -- Waste management ,Ho Chi Minh City, Vietnam -- Natural resources ,Ho Chi Minh City, Vietnam -- Waste management ,Ho Chi Minh City, Vietnam -- Social policy ,Watershed management -- Evaluation ,Social participation -- Evaluation ,Best practices -- Evaluation ,Environmental issues ,International relations - Published
- 2007
49. Pacific Northwest Tribes Face Climate Change With Agricultural Ancient Practice
- Subjects
Pacific Northwest -- Environmental aspects ,Tribes -- Environmental aspects ,Climate change -- Environmental aspects ,Clamming -- Environmental aspects -- Social aspects ,Global temperature changes ,Oceans ,Gardens ,Agricultural industry ,General interest - Abstract
To listen to this broadcast, click here: http://www.npr.org/templates/transcript/transcript.php?storyId=767896285 BYLINE: EILIS O'NEILL HOST: ARI SHAPIRO ARI SHAPIRO: Now a story about a surprising solution to problems tied to climate change. Many [...] more...
- Published
- 2019
50. Forest carbon dynamics in the Pacific Northwest (USA) and the St. Petersburg region of Russia: comparisons and policy implications
- Author
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Alig, Ralph J., Krankina, Olga, Yost, Andrew, and Kuzminykh, Julia
- Subjects
Pacific Northwest -- Environmental aspects ,Saint Petersburg, Russia -- Environmental aspects ,Carbon dioxide -- Control ,Forest management -- Comparative analysis ,Earth sciences - Abstract
Forests of the United States and Russia can play a positive role in reducing the extent of global warming caused by greenhouse gases, especially carbon dioxide. To determine the extent of carbon sequestration, physical, ecological, economic, and social issues need to be considered, including different forest management objectives across major forest ownership groups. Private timberlands in the U.S. Pacific Northwest are relatively young, well stocked, and sequestering carbon at relatively high rates. Forests in northwestern Russia are generally less productive than those in the Northwestern U.S. but cover extensive areas. A large increase in carbon storage per hectare in live tree biomass is projected on National Forest timberlands in the U.S. Pacific Northwest for all selected scenarios, with an increase of between 157-175 Mg by 2050 and a near doubling of 1970s levels. On private timberlands in the Pacific Northwest, average carbon in live tree biomass per hectare has been declining historically but began to level off near 65 Mg in 2000; projected levels by 2050 are roughly what they were in 1970 at approximately 80 Mg. In the St. Petersburg region, average carbon stores were similar to those on private lands in the Pacific Northwest: 57 Mg per hectare in 2000 and ranging from 40 to 64 Mg by 2050. Although the projected futures reflect a broad range of policy options, larger differences in projected carbon stores result from the starting conditions determined by ownership, regional environmental conditions, and past changes in forest management. However, an important change of forest management objective, such as the end of all timber harvest on National Forests in the Pacific Northwest or complete elimination of mature timber in the St. Petersburg region, can lead to substantial change in carbon stores over the next 50 years. more...
- Published
- 2006
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