Cumuliform cloudscape over Swifts Creek, Australia
[image credit: Wikipedia]
Looking into the past and future of climatic conditions on computer models can give somewhat cloudy results, at least partly because “there’s considerable uncertainty about the simulation of clouds in global climate models”.
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Were Earth’s oceans completely covered by ice during the Cryogenian period, about 700 million years ago, or was there an ice-free belt of open water around the equator where sponges and other forms of life could survive?
Using global climate models, a team of researchers from Karlsruhe Institute of Technology (KIT) and the University of Vienna has shown that a climate allowing a waterbelt is unlikely and thus cannot reliably explain the survival of life during the Cryogenian, says Phys.org.
The reason is the uncertain impact of clouds on the epoch’s climate.
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