The debate in Copenhagen is not about what to do about global warming: it's about who's going to pay for it.The almost 200 countries taking part in the Copenhagen climate change conference face one of the most complicated diplomatic puzzles ever. And yet what's at stake couldn't be simpler.
Science tells us what needs to be done to cap global warming at two degrees Celsius. All the participants at COP15 (the 15th Conference of Partners) have to do is decide who will bear the burden.
In theory at least, that too is very simple: divide the amount of greenhouse gases the atmosphere can handle by the number of people on earth and you know exactly what the maximum per capita emissions should be.
But that's where the troubles begin. The output of greenhouse gases is much higher in rich countries than in poor countries. Read further
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