Earth will easily survive humanity, even if we carpet bomb the surface with nuclear weapons. Even life is very likely to survive in its own niches as it has done during past global catastrophes. So worrying about earth is unwarranted in my opinion. Humans should be mostly concerned about their own species surviving in the foreseeable future. And so far I do not see any imminent danger of that happening, especially with our masterfully understanding to adapt our environments to suit our needs. But developments like global warming could lead to some drastic population swings in the future (e.g. via wars, famine, etc.).
Oh, and live will be gone on earth anyway, AFAIK in about 1 billion years when the sun has become so luminous that the oceans on earth will vaporize and ultimately escape into space. And the collision between the galaxies will very likely have no immediate effect on our solar system due to the vast space between stars (and therefore planets).
Oh, and live will be gone on earth anyway, AFAIK in about 1 billion years when the sun has become so luminous that the oceans on earth will vaporize and ultimately escape into space. And the collision between the galaxies will very likely have no immediate effect on our solar system due to the vast space between stars (and therefore planets).