http://www.skyscrapercity.com/archive/in...
http://www.climatehotmap.org/
http://www.warmingglobal.org/
http://www.globalwarming.net/
the term global warming is used to describe the condition the earth is facing due to the dispersal of ozone layer which allows uv rays to enter the atmosphere causing global warming.it allows heat to enter but does not allow it to go back so the polar caps begin to melt and the sea level starts to rise