Climate has changed in disastrous ways ever since there was an Earth and something resembling people on it. But even if every instance of climate change until now has been natural, it doesn't follow that man-made climate change is impossible and that the current instance is natural. That logic is fucked up and doesn't work.
Yeah, stupid ass hippies talk about "saving the Earth", which is a lot of horseshit. The Earth will be fine. The Earth will recover, shake itself off like it always does. No, those hippies should talk about saving ourselves, because dramatic climate change is always a threat to living things on the Earth's surface, not to the Earth as a whole.
Personally, I think we should just revitalize our space program and get the fuck off the planet and try to colonize Mars or some other place that's not here. That's my solution. Fuck the Earth.