Stephan is a cognitive scientist who has done a lot of important work related to climate change. He's doing a reddit "Ask Me Anything" on Monday, April 14th from 7:30AM EST onwards. Which, conveniently for him, is 7:30PM in Australia, if I have my time zones right.
There are two topics he mentioned to me that he'd like to address, which I will describe to you by citing blog posts:
But this is an AMA so I suppose you can ask him anything.