I don't like or trust those "tiny URL" link shorteners because (a) they make it so you can't see where you are going, even when it's to a good place as in this instance, and (b) eventually the company that runs the link shortener will fail and the link will break even if the destination website is still fine. So here's the actual link:
http://hines.blogspot.com/2012/08/james-hansen-extreme-heat-events.html
And here's a YouTube video of James Hansen from that link:
Hansen has a Ted talk you can watch here:
https://www.ted.com/talks/james_hansen_why_i_must_speak_out_about_climate_change