On Sunday in Thailand diplomats opened another round of formalUnited Nations talks on global warming. For more than 20 years, the UN has been working on this problem, with little progress. Expectations have never been lower. The December 2009 conference in Copenhagen that was supposed to finalise a new treaty to replace the expiring Kyoto protocol ended in deadlock. Last year's talks in Cancún ended without agreement on most of the important new issues.
Some of the troubles with global warming diplomacy are unavoidable. Stopping climate change is one of the hardest challenges the international community has undertaken. The main cause of climate change, emissions of carbon dioxide, is intrinsic to the burning of fossil fuels that power the world economy. Even in the best of circumstances, getting off carbon will take decades and trillions of dollars. The world economic crisis makes that even harder as few societies choose to spend money on distant problems when they face more immediate challenges such as unemployment and poverty.
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