The GHG Protocol Corporate Accounting and Reporting Standard helps companies and other organizations to identify, calculate, and report GHG emissions. It is designed to set the standard for accurate, complete, consistent, relevant and transparent accounting and reporting of GHG emissions.

The control of greenhouse gas emissions continues to be a major global problem. It is inter-disciplinary, both in substance and approach, and covers technical, political and economic issues involving governments, industry and the scientific community. These proceedings contain 220 papers presented at the 5th International Conference on Greenhouse Gas Control Technologies (GHGT-5) held in August 2000 at Cairns, Queensland, Australia. The papers cover the capture of carbon dioxide, geological storage of carbon dioxide, ocean storage of carbon dioxide, storage of carbon dioxide with enhanced hydrocarbon recovery, utilisation of carbon dioxide, other greenhouse gases, fuel cells, alternative energy carriers, energy efficiency, life cycle assessments and energy modelling, economics, international and national policy, trading and accounting policy, social and community issues, and reducing emission from industry and power generation.

Understanding, quantifying, and tracking atmospheric methane and emissions is essential for addressing concerns and informing decisions that affect the climate, economy, and human health and safety. Atmospheric methane is a potent greenhouse gas (GHG) that contributes to global warming. While carbon dioxide is by far the dominant cause of the rise in global average temperatures, methane also plays a significant role because it absorbs more energy per unit mass than carbon dioxide does, giving it a disproportionately large effect on global radiative forcing. In addition to contributing to climate change, methane also affects human health as a precursor to ozone pollution in the lower atmosphere. Improving Characterization of Anthropogenic Methane Emissions in the United States summarizes the current state of understanding of methane emissions sources and the measurement approaches and evaluates opportunities for methodological and inventory development improvements. This report will inform future research agendas of various U.S. agencies, including NOAA, the EPA, the DOE, NASA, the U.S. Department of Agriculture (USDA), and the National Science Foundation (NSF).