wutCO2 is a life giving gas.
carbon monoxide from cars is pollution.
The settlers turn the mid usa into arid land by cutting down trees. That is a problem.
The scientist that started the weather channel says man made global warming is false. He may be wrong though because chem trails across the world since the mid 90's may actually be the problem...
ps. i would like to see some one re do the Cavendish experiment with the big lead balls in the shed and prove gravity.