Science is making headway in predicting how the planet's climate will evolve, but it's anyone's guess what actions policymakers meeting in Bali will take -- or not -- to slow global warming.
With just over two weeks left before the crucial 11-day forum in Indonesia, decision-makers are under intensifying pressure to do something about greenhouse gases -- and do it quickly.
The starkest warning of all came on Saturday from UN's top scientists, gathered under the Nobel-winning Intergovernmental Panel on Climate Change (IPCC).
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Comment: While there is no question that there is global warming in the last few decades, there is much debate in the scientific community about the extent of a human factor. There are plenty of evidences indicating that this is part of a natural cycle that has many causes from geological to cosmic ones. The human factor has been blown up far out of proportion by the governments and media. One has to wonder why it should be that way.