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Humanity's carbon budget
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No more than one-quarter: that's the proportion of existing reserves of oil, gas and coal that we can burn if we are serious about keeping the planet from warming by 2°C or more. These are the conclusions of the most comprehensive efforts yet to pin down just how much carbon dioxide can be emitted into the atmosphere.
Two independent studies have recently shown that if governments are to stick to their pledge to avoid "dangerous" global warming (most politicians and many scientists take this to be no more than 2°C) then humans must not inject more than 1 trillion tonnes of carbon into the atmosphere in total.
If governments are to stick to their pledge to avoid "dangerous" global warming – which most politicians and many scientists take to be no more than 2°C – the models come up with roughly the same answer. Humans must not inject more than 1 trillion tonnes of carbon into the atmosphere in total.
Click here to read the full article in the New Scientist.
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