Environmental Wacko Takes Over Discovery Channel?

Today, an environmental wacko stopped by the Discovery Channel's headquarters and took some hostage. There has been a lot of news on the web, so I won't bore you with the details.
My question is why the Discovery channel. The have the most leftist, environmentally friendly channels. You go to their web sites (not just Discovery Channel) and you will find some of the most leftist propaganda on any television channel. http://planetgreen.discovery.com/
So, why did this leftist wacko go to Discovery? Maybe to find a sympathetic audience? Don't really know because he is no longer with us.
The funniest part, if there is a unny part, is this wack was "awakened by Al Gore's movie". If he was awakened, then he probably was the first as most people are put to sleep by Al Gore.