In my opinion, human race will be in serious dangerous. Pollution, car fumes and factory smokes are killing us slowly, and our race will be destroyed, if we won't start care about our environment. Some people says, that end of world will be in 2012. There isn't bigger mistake. Those predictions are for naive peple, like stories about UFO or aliens. We have to care about our Earth, fe. by using biofuel, saving energy, using energy from bio-sources, and producting means of transport driving by sun energy.