| SvennoJ said: Global nuclear war would likely be easier for the planet to recover from. Nuclear winter can last as long as a decade. Nuclear fallout 1 to 5 years. It's nothing compared to how long it will take to recover from runaway greenhouse effect. Venus never recovered... https://newsroom.carleton.ca/story/venus-climate-change/ |
Sorry, earth will not easily turn into venus. Venus had no tectonic plates develop, something which is important in earths carbon cycle, this is a major CO₂ sink. Plate tectonics have lead to the most extreme ice age, where earth completely froze over to the equator, about 800 million years ago.
On venus and earth both CO₂ is released by volcanic activity from the planets inside. But while on earth with waethering and plate tectonics a system exists to put carbon back into the earth, no similar process exists on venus. So more and more CO₂ is released there and never reduced. This is the reason Venus got so hot. Also as the gas is accumulating the atmosphere got thicker (as nothing is removed), so it has much, much more pressure than the earths atmosphere.
