Much as I hate using the expression “believing in global warming” - like it’s akin to believing in fairies, or something.
Perhaps “who believes that global warming is man-made” is a better way of putting it.
Anyway: the man hotly tipped to be named the new American energy secretary, Steven Chu, is a breath of fresh air. Quite literally, given his views on greenhouse gases.
Here’s Chu in action. As it were (I’m sure other ‘in action’ footage could include him being boffin-like, in a white coat in a laboratory somewhere). This is long, but fascinating (well, the part I’ve watched so far 
):
(Source: Oliver Willis via Bob Cesca)