The truth is that the amount of CO2 in our atmosphere has long been in excess of 400 parts per million. The last time the CO2 levels were this high, it was over 1 million years ago and the oceans were 60 to 80 feet higher than they are now. More than half of the world lives near an ocean, so if this happens again, many people will die as humans cannot live underwater. The time has come to take money out of industries that poison our atmosphere and kill our planet (oil, logging, coal, etc.) and start putting money in the future of our existence. Lots more money, research, and effort should be put into clean, renewable energy.