In fact I can’t say that we’re not screwed – god knows what unforeseen dangers are lurking in our little corner of the universe. The sun could explode, or the planet could implode. The Yellowstone caldera is overdue for a cataclysmic eruption. All hell could break lose.
And if you’re conversant with Buddhist thinking, you know that all things are impermanent.
That said, I also know that we’re remarkably resilient and we can probably survive more than we know. The real question (as in the global warming controversies) is this: is there something we can do now to avert a catastrophe, and should we be doing it? Those who once denied “global warming” (I prefer climate change), faced with incontrovertible evidence that Something Is Up, are now acknowledging that point but arguing that there’s nothing we can do about it (i.e., we shouldn’t do anything to disturb tourism on Amity Island, even as Bruce the shark cruises the waters, looking for hors d’oeuvres.)