There's a difference between reasonable and unreasonable skepticism. A couple years ago there was a big debate about climate change on the xkcd forum. Fortunate

There's a difference between reasonable and unreasonable skepticism. A couple years ago there was a big debate about climate change on the xkcd forum. Fortunately, there was someone with some experience in the field itself. There is always a question of what the scientific opinion is on climate change. He answers that question pretty well in this post http://forums.xkcd.com/viewtopic.php?f=8&t=15290&st=0&sk=t&sd=a&hilit=global+warming&start=40#p406833 http://forums.xkcd.com/viewtopic.php?f=8&t=15290&st=...