Who knows what to believe? When i was a child in the 1970's the school teachers would tell us that an "Ice Age" was coming. Nothing like having little children scared that they will freeze to death. I didn't believe that then, now they are teaching Global warming...C'mon man!Climates change, but climate change is a total hoax. They want to use it to control us. That will be four carbon credits please. I try to keep it to myself, but a kindred spirit what pays attention is hard to not acknowledge.