BOOM

Greenhouse gas emissions hit danger mark

SYDNEY (Reuters) - The global economic boom has accelerated greenhouse gas emissions to a dangerous threshold not expected for a decade and could potentially cause irreversible climate change, said one of Australia's leading scientists.

Tim Flannery, a world recognized climate change scientist and Australian of the Year in 2007, said a U.N. international climate change report due in November will show that greenhouse gases have already reached a dangerous level.

Flannery said the Intergovernmental Panel on Climate Change (IPCC) report will show that greenhouse gas in the atmosphere in mid-2005 had reached about 455 parts per million of carbon dioxide equivalent -- a level not expected for another 10 years.

"We thought we'd be at that threshold within about a decade," Flannery told Australian television late on Monday.

"We thought we had that much time. But the new data indicates that in about mid-2005 we crossed that threshold," he said.

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Flannery said global economic expansion, particularly in China and India, was a major factor behind the unexpected acceleration in greenhouse gas levels. ...

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