The trillion-tonne "carbon budget" we can't exceed

May 2009
New Scientist;5/2/2009, Vol. 202 Issue 2706, p4
The article reports on a computer modelling study which concluded that to avoid "dangerous" climate change, people must not burn more than one-quarter of the remaining reserves of fossil fuels. The study led by Myles Allen at the University of Oxford and another by Malte Meinshausen of the Potsdam Institute for Climate Impact Research in Germany claim that humans must not emit more than 1 trillion tonnes of carbon into the atmosphere if humans are to have a 50:50 chance of limiting global warming to 2° Celsius.


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