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Nowadays environmental issues have been of great concern to the world, among which the problem of global warming caused by greenhouse gas emissions is particularly prominent. All countries in the Kyoto Protocol and the Paris Agreement have committed to control greenhouse gas emissions, and China, as the largest carbon emitter, has assumed a heavier burden. China has been striving to develop low-carbon technologies such as hydrogen, nuclear, wind, and solar energy, but the most attention should be paid to CCUS, which many scholars have high expectations that CCUS can help China reduce emissions to some extent. Therefore, this paper presents a prediction that CCUS can reduce 3.8% of carbon emissions for China in 2040 when CCUS emission reductions increase at a rate of 30%. The power and chemical industries could reduce carbon emissions by 2.3% and 17.3%, respectively. [ABSTRACT FROM AUTHOR]

Biochar was recently included as a promising negative emissions technology (NET) in the Special Report on Global Warming of 1.5 °C published by the Intergovernmental Panel on Climate Change. Unlike other NETs, it can potentially be used to mitigate global climate change while adding to local resilience in countries highly exposed and sensitive to impacts of climate change, such as least-developed countries (LDCs). The study is as an empirical contribution to the, as of yet, underdeveloped literature on deployment of negative emissions technologies in LDCs in general and on biochar use in developing countries and LDCs specifically. Nine historical and existing biochar projects in Tanzania are mapped in order to analyse problems, goals and common trade-offs associated with small- to medium-scale biochar production in LDCs. The mapping is based on a literature and document study, interviews with project actors, and on-site visits to biochar projects during 2019. The paper gives support to the observation made in the biochar literature that while biochar has many potential socio-economic and environmental benefits, combining them in one single project is difficult. It is concluded that implementing biochar projects in Tanzania will likely involve trade-offs between the development and subsistence strategies and needs of local communities, the motivational forces of different project participants, and the uneven regulatory capacity of the state. We end by reflecting on the use of biochar projects to offset carbon emissions made elsewhere. [ABSTRACT FROM AUTHOR]

Global warming is caused by rising carbon dioxide concentrations, while ecological and environmental issues are becoming increasingly evident. Many governments' main objective in addressing climate challenges is to achieve carbon balance. Exploring the distribution and changing trends of carbon balance can contribute to carbon balance strategies. This study takes the Yangtze River Economic Belt (YREB) as the study area, analyzing the spatial and temporal dynamic changes in carbon emissions and carbon sequestration in the YREB from 2000 to 2017. The county-level supply–demand ratios and accessibility are calculated based on the enhanced two-step floating catchment method according to the dynamic flow radius. According to our experimental results, carbon emissions can achieve different degrees of carbon balance according to the flow radius. After carbon emissions flow between counties within the province, some provinces can realize the transition from carbon surplus to carbon balance. With the expansion of the flow radius and the increase in internal mobility, more counties can participate in carbon sequestration, and some provinces can achieve carbon neutrality after carbon emissions transfer across provinces. Hubei, Chongqing, Zhejiang, Hunan and other provinces with special carbon sequestration capacity are very sensitive to changes in the radius of carbon emission flow. In 2017, when the carbon emission flow radius is 50 km, the net carbon emission of the flow can be reduced by 3%. If the radius is increased to 200 km, the YREB can achieve carbon balance. This study can provide decision-making information for carbon emission ecosystem management in the YREB. [ABSTRACT FROM AUTHOR]

Tourism serves as a crucial means of funding national development and ensuring the sustainability of local livelihoods in growing countries such as Brazil. Nevertheless, the accelerated growth of tourism in various nations might lead to significant environmental consequences due to heightened energy consumption. This surge in energy usage contributes to the exacerbation of global warming through the amplified release of carbon dioxide (CO2). In light of the increasingly evident impacts of climate change on the natural environment, a multitude of endeavors have been undertaken with the aim of attaining ecological sustainability. The objective of this study is to examine the dynamic effects of economic growth, energy consumption, and tourism on carbon emissions in Brazil by analyzing time series data spanning from 1990 to 2019. The stationarity of data was assessed through the application of unit root tests, while an autoregressive distributed lag (ARDL) approach was employed to analyze the relationship between the components, accounting for both the long-term and short-term dynamics. The empirical results indicate that a 1% rise in economic growth, energy consumption, and tourist arrivals leads to environmental deterioration by causing a respective increase in CO2 emissions of 1.37%, 1.06%, and 0.57% in the near term, and 0.72%, 0.62%, and 0.16% in the long term. This article presents policy ideas aimed at achieving carbon neutrality in Brazil by increasing the utilization of renewable energy sources, while simultaneously fostering sustainable tourism as a means to enhance the country's economy. Highlights •This study investigated the tourism-economy-energy-environment nexus in Brazil. •The econometric analysis revealed that tourism, energy use, and economic growth increase CO2 emissions. •This article offers policy suggestions to achieve sustainable tourism and carbon neutrality. [ABSTRACT FROM AUTHOR]

India is a major contributor to the global warming of the world, but there persists a prevalent lack of understanding of carbon trading (carbon credit derivative) as a commodity tradable on the stock exchange. The study brings into light the predominant drivers that can lead to the sustainable enhancement of efficacy and efficiency of carbon credit trading in India. The key drivers responsible for the sustainable implementation of the carbon credit derivative trading in India are identified and critically examined. The Analytic Hierarchy Process and Best–Worst Method have been used to rank the factors and sub-factors based on the priority (or weights) provided by the industry experts. The results indicate that the risk factors in the carbon credit derivative market are extremely crucial for enhancing sustainable trading of carbon credit derivatives closely followed by the reward and opportunity factors. The study is the first study which analyses the factors that can lead to the sustainable implementation of carbon credit trading in India. The study also contributes to the organizational strategy that carbon securitization would contribute significantly towards their financial as well as ecological sustainability. [ABSTRACT FROM AUTHOR]

In this article, we explore the world's response to the increasing impact of carbon emissions on the sobering threat posed by global warming: the carbon offset market. Though the market is a relatively new one, numerous offset providers have quickly emerged under both regulated and voluntary regimes. Owing to the lack of technical literacy of some stakeholders who participate in the market, no common quality or certification structure has yet emerged for providers. To the contrary, the media warns that a relative 'cowboy' atmosphere prevails in the current environment, and that there are 'widespread instances of people and organizations buying worthless credits that do not yield any reductions in carbon emissions' (Harvey and Fidler, Financial Times, ). At this point in the evolution of the market, only a handful of offset provider-rating schemes exist; and, even these systems leave consumers with few answers when they seek to find a means by which to ensure that the said systems are having their intended impact. The purpose of this article is, first, to provide a grounded understanding of the nature of the offset market, a tendency toward carbon neutrality as a possible point of equilibrium, and the ethical tensions that surround it from the perspective of the consuming public. Second, we outline the standards environment for offset providers to illustrate most effectively the need for a single set of criteria among providers that is readily understandable by the common consumer stakeholder. We then explore the differences among the providers and articulate the specific criteria upon which providers may be evaluated by this particular stakeholder constituency, by bringing together best practices based on currently available analyses. Finally, we share the results of preliminary data collection in connection with 117 offset providers and highlight early findings. These findings allow us comparing providers effectively and efficiently on a common scale that services both providers, who thereby have greater guidance for self-assessment purposes, as well as consumer stakeholders, who then have the ability to make useful and more informed choices about carbon emission reduction in the future. [ABSTRACT FROM AUTHOR]