We learned long ago that the Chicxulub asteroid impact 66 million years ago spelled the end of the dinosaurs, and most other plant and animal species on earth. Reading about the effects of that impact is chilling, but you know what would be even more chilling? To imagine what that asteroid impact would do to the earth as it is now. There were no humans around 66 million years ago, no cities, no infrastructure, no agriculture, and no national boundaries.
John D. Boswell, also known as Melodysheep (previously at Neatorama) took what we know about the asteroid impact and transposed it onto our modern world, so that we can envision just how big and earth-shattering it was. In the best-case scenario, the world population goes from eight billion to around two billion people in the first couple of days. But surviving doesn't get easier after that- it would be a real global apocalypse.
Should we be worried about an asteroid impact? Astronomers are keeping tracks of the asteroids, and are working on ways to protect our planet. Others are working out schemes to survive and ride out the apocalypse. This is a long video, but the last couple of minutes are promotional. And the visuals are stunning. -via Geeks Are Sexy
I also found out that if you put the word Chicxulub into Google search, the asteroid rolls across your screen and you can feel the impact.