What happens in 20 years time as global warming increases?

Question: What happens in 20 years time as global warming increases?
- Keywords:
  climate change,
  future,
  global warming
Asked by coolragz to Bob, Katie, Nisha, Sallie, Vee on 27 Jun 2012.
- Bob Bonwick answered on 27 Jun 2012:
  
  No idea. We havent been on the earth, or at least recorded its climactic shifts long enough to know for sure. We do know that there have been several ice ages and we weren’t about to pollute the earth when they were happening, but that isnt to say they we are not having an impact. Time will tell.

Question: What happens in 20 years time as global warming increases?