In the science of praxeology, they don't claim to know the mechanisim of what makes humans tick. They just presume that the mechanisims behind human behavior is too complicated to prefectly predict in many areas, and then work from there. Even though this is not hard science, you can still make extremely usefull predictions about human behavior in society and in large groups, and what kinds of social structures favor optimum desired outcomes.
Anyhow, the point is that praxeology implies free markets for optimum economic success, and public benefit, and many of the AGW proposals addressing global warming fly directly in the face of this. So obviously something is screwed up somewhere. Especialy when they say that disaster is immenent, and that we need to have insane taxes, regulations, and global government right this second to fix it. Also, predictions about AGW fly all over the place ranging from 1 degree in 100 years to a catistrophic heating event in the next decade. Also, every time a new discovery is made ... like the amount plankton plays a role in the oceans, like methane generation in the soil ... their computer models go to hell, and they all go running back to redo them and recalculate. Even with people screaming loudly that the debate is closed. Also, why does the UN have a pannel on climate change? This is not a science orginisation, it is a political one ... at times there seems almost to be a desparate push as in, fuck it all to hell right now we must have a big co2 tax, or something similar this minute.