EPA Finalizes 2008 National U.S. Greenhouse Gas Inventory

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The U.S. Environmental Protection Agency (EPA) has released its 15th annual U.S. greenhouse gas (GHG) inventory report, which shows a drop in overall emissions of 2.9% from 2007 to 2008. The downward trend is attributed to a decrease in carbon dioxide (CO2) emissions associated with fuel and electricity consumption.

Total emissions of the six main GHGs in 2008 were equivalent to 6,957 million metric tons of CO2. The gases include CO2, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride. Though overall emissions dropped in 2008, emissions are still 13.5% higher than they were in 1990.

The Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2008 is the latest annual report that the U.S. has submitted to the Secretariat of the United Nations Framework Convention on Climate Change.

The convention sets an overall framework for intergovernmental efforts to tackle the challenge posed by climate change. The EPA prepares the annual report with experts from multiple federal agencies after gathering comments from a broad range of stakeholders across the country.

The inventory tracks annual GHG emissions at the national level and presents historical emissions from 1990 to 2008.

SOURCE: The U.S. Environmental Protection Agency

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