For you Global Warming deniers out there, I have a few things to say to you:
-Be wary of any research coming out against GW/GCC/AGW/AGCC. Check where it's coming from. Is it peer reviewed, and published in an accredited scientific journal? Or is it not (careful too, as now people in the denier communities for both global warming and evolution are starting to catch on to this and are forming their own journals, and claiming to be accredited and peer reviewed, so always, always look the journal up if it's not instantly recognizable). There's a huge difference between a study published in Nature and one published in some no name journal with author publishing and no peer review. Or ones coming from a think tank. A think tank that, if you do a bit of digging, you will find out is funded by Exxon Mobil and Sean Hannity.
-Be very skeptical of anyone in the media speaking out against global warming, and listen carefully to their arguments/claims. If they are making any that aren't obviously fallacious upon first hearing/reading/seeing them (like Limbaugh's argument from incredulity) look them up. Also, look the person up. Find out who's funding them. Who they work for.
-If any scientists speak out against global warming, pay attention to what discipline of science they are experts in. When a biologist or a chemist expresses doubt about global warming, appealing to that in an argument is nothing but an appeal to authority. Their expertise is not in climatology. Being as smart as they may be, and knowing what they know about their area of science affords them NO special bonuses when it comes to climatology. They're just a layman like myself, and can easily be wrong.