Check out https://www.centauri-dreams.org/ https://www.centauri-dreams.org/, it's a blog dedicated to interstellar travel. It's on hiatus at the moment, but the

Check out https://www.centauri-dreams.org/ https://www.centauri-dreams.org/, it's a blog dedicated to interstellar travel. It's on hiatus at the moment, but there are plenty of back articles to read! However, I recommend you figure out how to reduce your anxiety, because after reading it for a while it will become clear that interstellar travel isn't happening any time in the foreseeable future. Fortunately, I don't think that a species that flourishes from the hot tropics to the freezing arctic is likely to be in much existential danger from climate change, and even less from the volatile vagaries of politics. (Climate change might bring very substantial changes, but escaping off-planet isn't going to be less change)