Climate Change: Turning Up the Heat

Is climate change really happening and does it matter?
The answer from the scientific community is a resounding yes, yet debates about the reality of climate change and what measures to take are slowing our response. Barrie Pittock, one of the world's leading climate researchers, argues that we need to act urgently to avoid increasingly severe climate change.

He looks at the controversy around global warming and other predicted changes, examining the scientific basis of the changes observed...