The CO2 problem in six easy steps (2022 Update)
Real Climate
JULY 10, 2022
However, that was written in 2007 – 15 years ago! Step 1: There is a natural greenhouse effect. This means that there is an upward surface flux of IR around (~398 W/m 2 ), while the outward flux at the top of the atmosphere (TOA) is roughly equivalent to the net solar radiation absorbed (~240 W/m 2 ).
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