Why you so negative? You are like the doomsayers during the Roman Empire asking if this is the end of Rome while Nero enjoys seeing his beloved city burn. The planet Earth would still be here after we are long gone. 4 billion more years before it will be disintegrated by an enlarging Sun turning into a red giant. People will try to fix the planet one way or another. Or perhaps, climate change might be Earths way of cleaning the mess created by humans. The sea rises, doesn't matter in a world without humans. The sea level drops, doesn't matter also, we are but small ants in a very big world.