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Global: Latest climate news — CFCs good! or bad!

November 12, 2013

From the people who tell us ‘the science is settled’; chlorofluorocarbons cause global warming. Or prevent global warming. Or something.

In an attempt to explain “the pause”, researchers are now grasping for explanations:

Human actions that were not intended to limit the greenhouse effect have had large effects on slowing climate change. The two world wars, the Great Depression and a 1987 international treaty on ozone-depleting chemicals put a surprising dent in the rate at which the planet warmed, says research published today in Nature Geoscience1.

Francisco Estrada, an ecological economist at the Free University in Amsterdam, and his colleagues analysed annual temperature data collected from 1850 to 2010, as well as trends in emissions of greenhouse gases such as carbon dioxide, methane and chlorofluorocarbons (CFCs) — ozone-depleting substances that also trap heat in the atmosphere — between 1880 and 2010.

Only one problem, two years ago, we were being told cutting back on CFC’s “…helped to shield… from carbon-induced warming over the past two decades” as the CFC driven ozone hole heals

Watts Up With That?

But whatever they do, the studies always reach the same conclusion — we need more money to study them!


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