Global warming debates

I have been reading about the pros and cons of global warming and have been very supprised about the results. I found out that this is a very heated debate. Some people belive that it is just a hoax and that it has been going on for ever and that we are just now noticing it. On the other hand, there are some pretty crazy people that are so worried about global warming that they are buying all "smart" items like solar panals, smart cars and energy ifficant items. I am kind of in the middle on this topic and belive that it is still around but we need to do somthing about it.