Climate Change(d)?

[Loren Pechtel]

Humanity didn't arise halfway through Earth's life, we arose when 99% of the clock was already gone.

And we haven’t even been here for a blip in the life of the earth. Blips could happen again. Why will CO2 levels spike in 50 million years?
Not concerned, just curious.

CO2 levels won't spike--they're going to peg the other way. CO2 levels have been dropping over Earth's history, 50 million years from now is when lowering CO2 can no longer offset the sun getting warmer. Something in the ballpark of a billion years before all life is gone.

 

[Elixir]

Something in the ballpark of a billion years before all life is gone.

If we keep getting smarter maybe we can learn to control our sun’s expansion or build a ringworld or a Dyson sphere or import a new sun and kick the old one out of our galactic arm. If we can’t get it done some time in the next 999 million years it probably wasn’t going to happen anyhow.

 

[steve_bank]

I was not here but the Columbus Day storm is remembered in Seattle.