We have pictures and first person accounts of the Holocaust. With human-causes global warming, we have hyperbole and predictions that fail to happen again and again. “Climate Denial” isn’t the same as Holocaust denial, it’s more akin to blasphemy. Replace “global warming” with “God” and the debate would be identical: each side tries to prove there case, but not a single person who has already picked a side will be convinced otherwise. However normally, it’s ok for people to have disagreements, but when one side attempts to impose Sharia then the debate hits a fever pitch because it affects the core of our very way of life.