The Earth has been cooling and warming up for millions of years well before Al Gore got a hard on' over it.
The human factor is simply bullshit so that himself and hundreds of other celebrities can continue to fly to and fro' conferences and gatherings in Travolta's private jets and attend concerts (that generate massive amounts of environmental rubbish) hosted by that prick Bono to tell you not to turn on your central heating in the middle of fucking winter.