This presentation by an Edinburgh University chap called Dr Richard Milne, on basic climate science and the difference between skepticism and denial is long (over an hour), but is well worth watching
Noam Chomsky on Climate Change (just the first 5 minutes of a 20 minute interview)
A Carbon History of the World
What is “climate change”?
length: x mins, date produced: x 2012, further reading: xxxx
What is it with this denialism thing?
length: x mins, date produced: x 2012, further reading: xxxx