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  Topic: Science Break, News in science< Next Oldest | Next Newest >  

Posts: 12278
Joined: Oct. 2005

(Permalink) Posted: April 19 2018,11:36   

Inspired by that numbnut who said CO2 doesn't trap heat, which has been known to be wrong since 1896, I wondered what the temp of Earth would be without greenhouse gases. This is interesting:

At present, roughly 30% of the incoming solar radiation is reflected back to space by the clouds, aerosols, and the surface of Earth. Without naturally occurring greenhouse gases, Earth's average temperature would be near 0°F (or -18°C) instead of the much warmer 59°F (15°C).

NASA: Refining the role of greenhouse gases.

  27 replies since Mar. 28 2018,20:06 < Next Oldest | Next Newest >  


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