Well, these guys are working on getting humanity through smaller but similar events through feeding people despite years without any crop growth. https://allfe

Well, these guys are working on getting humanity through smaller but similar events through feeding people despite years without any crop growth. https://allfed.info/ https://allfed.info/ We've actually got a fairly decent handle on asteroid protection right now with the cataloging work that's been done in the last couple of decades. Comet impacts, supervolcanos, and possibly a nuclear winter are really the biggest threats of this sort