Global Warming (is bullshit)
You might want to read it here.
Then, you might want to watch The Great Global Warming Swindle, which contains an interview with the former headman of NewScientist. This video is over an hour long, but it strongly changed some of my views on the reality of man-made global warming.
(As always, it's important to remember that as new information gets made available, we can find out more about what's actually going on. This video convinces me that, at this time, it does not appear to be a human-driven process. But one of the good things about this video also is that it frankly allows for the discovery of new information, making the point that it appears to be the "global warming" advocates that are jumping to conclusions.)