Hello,
I am wondering why global warming is explained with heat bouncing back instead of going to space (that’s what I remember from school). However if that is the case should it not block alot or sunrays too?
Edit:
Just a clarification I am not a global warming denier, I just want to understand better.
In: 3
The sun emits electromagnetic radiation (light) in all wavelengths. Most of it passes freely through the atmosphere. CO2 only blocks a small part of electromagnetic spectrum.
When the light hits the earth it is absorbed and turns into heat. This heat is radiated away from earth as infrared radiation, which happens to be mostly in the same range of wavelengths that CO2 blocks.
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