"The climate change skeptics remind me of those who surrounded...

"The climate change skeptics remind me of those who surrounded Christopher Columbus and professed that the world is flat and if one sails far enough, one would fall off the edge of the earth."

This is no way to conduct any debate, let alone a scientific debate. It's is totally baseless.

One could say the "consensus" of AGW is a bit like the "consensus" the earth was the centre of the solar system when Galileo said the Sun was the centre. See, you can look at it either way.