Methane to have the greatest effect on global warming in the next 20 years, with CO2 accounting for less than half

March 29th, 2010

While less than half of the warming in the next 20 years will be caused by CO2, other gases such as methane, and black carbon particles (soot) will have the greatest effect.

According to Professor Kirk Smith, writing in the New Scientist Magazine:

“Less than half of the total warming expected over the next 20 years will be caused by CO2. Methane, along with other gases such as carbon monoxide, volatile organic compounds (VOCs) and black carbon particles, will cause most of the changes.”

Source: Methane controls before risky geoengineering, please – Dr Kirk Smith New Scientist Magazine – article – full article

Date: 25 June 2009

Source: Global warming in the twenty-first century: An alternative scenario NASA site – abbreviated versionProceedings of the National Academy of Sciences (PNAS) – full article

Date: 2001

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