There are so many threats to the existence of humans, but actually how many of them are in the near future because most – Sports Science Zone

Question: There are so many threats to the existence of humans, but actually how many of them are in the near future because most them of them are a few billion years away?
- Keywords:
  apocalypse,
  extinct,
  humans
Asked by begiwh to Helen, Jenni, Mark, Martin, Stu on 17 Jun 2011.