The guy who posted those videos has some good videos about climate change as well.
I think knowing about peak oil is more important not because you can change the course of oil depletion, but because you can prepare accordingly.
Steam names! I know at least a large minority of you have them, if you didn't then you probably got one just to buy GMod after you saw some of Ross's stuff.
Mine is MaestroManDan, hit me up for some CS:S, L4D2, or Alien Swarm anytime.