Here’s What Real Science Says About the Role of CO2 as Earth’s Preeminent Climatic Thermostat

Our relatively thin atmospheric cocoon that protects us from meteor impacts and radiation also makes for a habitable climate, thanks to the greenhouse gases it contains — carbon dioxide first and foremost.

ImaGeo iconImaGeo
By Tom Yulsman
Mar 12, 2018 2:00 PMMay 23, 2020 10:15 PM
Earth Atmosphere - NASA
In this photograph captured by an astronaut aboard the International Space Station on July 31, 2011, the oblique angle reveals the layers of Earth's atmosphere, along with a thin crescent Moon illuminated by the Sun sitting below the horizon. (Credit: NASA Earth Observatory)

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Whenever I post something here at ImaGeo involving climate change, it’s a good bet that I’ll get a spectrum of critical responses in the comments section. These range from skepticism about the urgency of the problem to outright dismissal of humankind’s influence on climate through our emissions of greenhouse gases.

A recent post here about thawing permafrost releasing climate-warming carbon dioxide into the atmosphere was no exception. For the story, I reviewed dozens scientific research papers, and used information and quotations from two interviews. Based on that reporting, here’s what I wrote at the top of the story:

The coldest reaches of the Arctic on land were once thought to be at least temporarily shielded from a major — and worrisome — effect of a warming climate: widespread melting of permafrost. But a recent study suggests these northernmost Arctic areas are likely to thaw much sooner than expected. That’s concerning because melting permafrost releases climate-warming greenhouse gases.

As always, I expected skeptical pushback — but nothing as extreme as this:

As CO2 has had no noticeable effect on climate in 600 million years, until 15- 20 years ago, when carbon tax was invented, any alleged climatic effects can be ignored.

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