While this has absolutely nothing to do with the scientific method, or scientific studies...I will address a couple of things brought up here...
Fossil fuels are finite. While the earth may be producing more, the time line is hundreds of millions of years to make more, and we will run out in a much shorter period. We have large supplies of natural gas, and can make forms of natural gas from human, animal and plant waste. The technology for running vehicles on natural gas is out there, and is being used worldwide. Many cities and school districts buses run on natural gas. About 45% of oil usage in this country goes to personal travel: planes and cars. If only commercial fleets were converted to natural gas, the oil savings would be tremendous. It also burns cleaner.