Well, 10,000 years ago New York city was under a glacier. We just finished an ice age ten thousand years ago.
Global warming even if man is causing it may not be a bad thing. Since the Pacific and Atlantic oceans were separated the earth has been cooling. Cooling is far worse than warming. There really does need to be a debate about this.
We should try and control the climate. The issue is should we try and make it colder or would we try and make it warmer. I'm voting for warmer. We need to rejoin the worlds Oceans with a 100 mile wide mile deep trench over Panama.