Originally posted by MarkJerling We better start preparing for that. It's "only" 22 billion years from now. I'm start by maxing out the credit card.
Don't worry, humans are unlikely to be around.
I think in about 600 million years there's meant to be a slight problem with a lack of carbon dioxide in the atmosphere to the point most plants won't be able to survive as a result of weathering of silicate rocks and formation of carbonate rocks.
Of course we could save up all our fossil fuels till then, but the sun increases in luminosity by about 1% every 100 million years, so earth is going to be getting quite toasty by then even without any greenhouse effect.
Eventually our nice celestial nuclear fusion reactor is going to run out of fuel and expand so much that earth gets cooked, and most likely absorbed, no matter how many 'Nuclear Free' signs Kiwis wave around.
Speaking of ways to get fried, while earthquakes aren't pleasant, they are a consequence of a floating crust on a molten core, and without that spinning liquid there would be no magnetic field so we'd get fried by the sun's radiation.
Shaken but not fried.