Well, US politics are more important than those of most other countries, because they still are a huge world-wide influence. But once enough climate change related disasters happened, everything will change anyway (for the worse). If you’re young enough to experience the resulting chaos in a couple of decades, you should start preparing for that now (e.g. saving up, not buying houses near oceans, and so on), instead of worrying about more temporary and short-lived political decisions. Unless they directly and significantly affect your life in the short term already, of course. Humanity does and will not be able to fight the climate change based on past and current observations, so buckle up.