8 Ways to Ensure Human Survival

8 Ways to Ensure Human Survival - Top 10 Lists: "Nuclear devastation tops a long list of ways for us to go out, including asteroid impacts, solar storms, disease outbreaks, etc. Here’s a fun fact: Over 99% of all species that have ever existed on our planet have gone extinct. Still, assuming Earth someday becomes inhospitable due to some catastrophe, here are 8 ways for us to avoid extinction."