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By Alister Doyle, Environment Correspondent

COAL MINE SEVEN, Svalbard, Norway (Reuters) - Fossils of a hippopotamus-like creature on an Arctic island show the climate was once like that of Florida, giving clues to risks from modern global warming, a scientist said.

Sluijs said forests grew in the Arctic when carbon dioxide, the main greenhouse gas, was at about 1,000 parts per million in the atmosphere because of natural swings in the climate.

And he said such concentrations point to risks with surging modern emissions stoked by human use of fossil fuels -- greenhouse gas concentrations are at the highest in at least 650,000 years and rising fast.

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At the risk of getting repetitive here:

1) CO₂ has been demonstrated to be a result rather than a cause of climate change.

2) There is no credible evidence that CO₂ levels are "rising fast" and the "highest in 650,000 years" claim is based on discredited ice core data.

3) The fact that the arctic was tropical 55 million years ago is proof of the futility of trying to control the Earth's climate.

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