Originally Posted by
Astrozombie
It's not that hard people, what's Venus mostly made of? CO2. What comes out of a cars tailpipe? CO2.
What's the temperature on Venus? 850F
How much of the life that has existed on Earth has become extinct? 99%.
That's a crazy comparison.
First off, the CO2 concentration of Venus is ~97%, here on earth the concentration is about 400ppm (0.04%), that's why it's called a trace gas.
97% for Venus and 0.04% for Earth.
We have had periods of time in earth's history with 7,000 ppm, which is still considered a trace gas. We never had temps on earth any where near Venus' temps at that high of a co2 concentration.
EDIT:
"How much of the life that has existed on Earth has become extinct? 99%." I'm not sure of your point here?