Thursday, July 16, 2009

Ooops, that global warming thing, nevermind

Maybe we were a tad premature on that whole global warming thingy.........

Could the best climate models -- the ones used to predict global warming -- all be wrong?

Maybe so, says a new study published online today in the journal Nature Geoscience. The report found that only about half of the warming that occurred during a natural climate change 55 million years ago can be explained by excess carbon dioxide in the atmosphere. What caused the remainder of the warming is a mystery.

"In a nutshell, theoretical models cannot explain what we observe in the geological record," says oceanographer Gerald Dickens, study co-author and professor of Earth Science at Rice University in Houston. "There appears to be something fundamentally wrong with the way temperature and carbon are linked in climate models."

During the warming period, known as the “Palaeocene-Eocene thermal maximum” (PETM), for unknown reasons, the amount of carbon in Earth's atmosphere rose rapidly. This makes the PETM one of the best ancient climate analogues for present-day Earth.

Well it's clear that all those single cellular organisms built huge SUVs that ultimately ended in their demise........

More.........

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