Off course we have a "green house" Without it we would not be here. It is mainly supported by water vapour but all the atmospheric gasses help and the variations in temperature keep the atmosphere moving.
It keeps us from frying in the sun and freezing at night. Our orbit around the sun keeps the average temperatures within a range of two or three degrees. We can get hot periods and cold periods depending on many things but mostly due to activity in our own solar furnace.
All the rest is politics and personal opinions of people wanting to make names for themselves. You can believe what you like it won't change the overall mechanics of our ecosystem.
Thems thar fighting words for ya!
Barry
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