This article borders on climate change denial, it's kinda ridiculous. The problem we face is not that the sun is getting hotter, but rather the greenhouse effect due to CO2 emissions.
Yes, we face an immediate climate emergency today. This article is for the humans of ~200 million years from now and avoiding the future red giant. Climate change won’t matter for them when the Earth will no longer be in the habitable zone.
Though even if we do manage to alter the orbit, the eventual white dwarf would require moving out orbit a second time, but into a highly radioactive environment.
I think it can be done by diverting a very large asteroid or series of asteroids to pass close by the Earth repeatedly, using their gravity to gradually change Earth's orbit. 200 million years gives us enough time to do so.
Yes, we face an immediate climate emergency today. This article is for the humans of ~200 million years from now and avoiding the future red giant. Climate change won’t matter for them when the Earth will no longer be in the habitable zone.
Though even if we do manage to alter the orbit, the eventual white dwarf would require moving out orbit a second time, but into a highly radioactive environment.