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23 February 2010 – Nations must make more aggressive pledges to slash greenhouse gas emissions to avoid global temperatures rising by 2 degrees Celsius and prevent the worst possible effects of climate change, warned the United Nations Environment Programme (UNEP) in a report released today.
The study, based on expert estimates from nine leading research centres, suggests that annual greenhouse gas emissions around the world should not exceed 40 to 48.3 gigatons of carbon dioxide equivalent in 2020 and should peak sometime between 2015 and 2021.
In addition to remaining within that range, the report also states that global emissions need to be cut by between 48 and 72 per cent between 2020 and 2050 to even have a 50/50 chance of meeting the target of keeping global temperatures below 2 degrees Celsius