Sorry, but we can't do anything about climate change, it's a natural part of Earth, and always will be. It isn't always global warming, either. It was global cooling in the 70s, and soon will be again. Global warming is just a joke, like Al Gore, who uses more in his mansion and private jet in a month than most people use in ten years. And besides, from December 2007 to January 2008, the Earth's temperature plummeted, undoing 100 years of warming, and it's still dropping. After a cold winter, like what they had in the 1300s through the 1800s, you'll all be wishing for some global warming, LOL. And this is according to NASA.
Anyways, yes, we should explore space. But unfortunately, there's global warming on Mars, too, since those little green Martians can't stop driving their SUVs, LOL. But seriously, space exploration is an important part of the future, and we'll see more space exploration in the future only if we don't let greedy charlatans like Al Gore get in the way.