Science Czar: There Is 'Consensus' on Climate Change

WASHINGTON (Reuters) - The science showing that greenhouse gas emissions from human activities are causing a dangerous warming of the world's climate is sound, President Barack Obama's top scientists said on Wednesday, despite controversial e-mails stolen from climate researchers.

E-mails from Britain's University of East Anglia, made public last month after being obtained by hackers, show climate researchers deriding global warming skeptics, who argue that the messages show that the researchers manipulated data to make climate change appear more definitive.

In the messages, researchers also asked other scientists to delete e-mails, apparently to avoid having them become public.

"There will remain after the dust settles in this controversy a very strong scientific consensus on key characteristics of the problem: global climate is changing in highly unusual ways compared to long experienced and expected natural variations," John Holdren, Obama's science advisor, told a congressional hearing.

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