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Discusses the loss of shoreline along the coast of Louisiana due to various causes. Loss of marsh, islands, and swamp which once covered more than 6,000 square miles in the early 20th century; How the nutria, a South American rodent, escaped into the wild and devoured the marsh roots; Efforts of the U.S. Army Corps to dredge 14 major ship channels to inland ports by the 1960s; How oil companies cut canals for pipelines and wells; Impact of the rising sea level and the loss of vital sediments and nutrients into the wetlands; Proposal from the state of Louisiana for a 14-billion-dollar plan to save the remaining wetlands from destruction.

Reports on the study by researchers of the University of California and the University of Texas at Austin, suggesting that Antarctica and North America may have been linked up for more than a billion years ago. Resemblance between Grenville Belt, Quebec and rocks found on the margins of East Antarctica according to the researchers; Emergence of the Pacific Ocean following the breaking of linkage between the continents.

Focuses on an iceberg named B-9 which drifted 1,200 miles for almost two years and then split into pieces. Size of the iceberg; Speed of the iceberg; Insights gained by scientists in the process of tracking the iceberg using satellite data.