Really? So, Anonymous Coward knows better than NASA and NOAA and the UN Panel on Cliamate Change? Oh, wait, maybe you don't have any f-ing clue what you're talking about, and the effects of Man-made climate change are radically different than natural variation.
Here's the thing, as you post on Slashdot, I'm going to assume you troubleshoot problems. Maybe it's network infrastructure, maybe it's software, maybe it's server administration. I don't know. But, do you really consider a problem "fixed" if you don't know the cause? If errors are getting thrown everywhere, do you apply band-aid fixes that "seem to work" but you don't know why? I do know those guys. You know what? They're fucking terrible at their jobs. Real troubleshooting is learning the root cause and fixing it. Even if you can't fix the root error directly, if you don't have a real understanding of it, you never know if your band-aids are gong to work.
When someone says "well who cares if it's man-made" or "it's really the alarmists that are the problem" or whatever, it's just another attempt to sow doubt on a model that is just as predictive as Evolution. It matters what caused it, because that influences how you fix it - for instance, if it's man-made, moving off coal power plants to solar, nuclear, wind, etc, is a huge help. So get a clue, stop sticking your head in the sand and changing the subject, and realize that man-made climate change is radically different than natural variation. Idiot.