
Cumulus clouds over the Atlantic Ocean [image credit: Tiago Fioreze @ Wikipedia]
Clouds again: “For 50 years, people have been making climate projections, but all of them have had a false representation of clouds”, says a top atmospheric science professor who served as a lead-author of Chapter 7, “Cloud and Aerosols” for the Fifth Assessment Report of the Intergovernmental Panel on Climate Change.
Despite this glaring deficiency in climate models, governments insist on framing energy policies on the assertion that human ’emissions’ will be the main cause of any observed or future global climate change.
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Above the Atlantic Ocean, puffy white clouds scud across the sky buffeted by invisible trade winds.
They are not ‘particularly big, impressive or extended,” says Dr. Sandrine Bony, a climatologist and research director at the French National Centre for Scientific Research. “But they are the most ubiquitous clouds on Earth.”
Clouds are one of the biggest question marks in global climate models, and a wild card in predicting what will happen to the climate as temperatures rise, says Phys.org.
They play a vital role in how much of the sun’s radiation makes it into and gets trapped in our atmosphere.
The more clouds there are, the more radiation bounces off their tops and is reflected back into space; it also means that if there are more clouds, the radiation reflected by Earth gets trapped.
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