Not Clearly Pro or Con to the question "Can Alternative Energy Effectively Replace Fossil Fuels?"
"Some alternative energy proposals will ultimately fail because they assume the availability of low cost oil and natural gas. Wrong! If oil and natural gas are in short supply, or only available at a sharply higher price, they have to be removed from the energy equation. For example, with the exception of small scale applications or devices, we can not assume the use of natural gas to power fuel cells. We have to be careful with the calculation of net energy from biomass if the production process uses excessive amounts of diesel and gasoline fuels. Ethanol is not a good idea if it assumes increased consumption of oil or natural gas based herbicides, pesticides, and fertilizers. The list of questionable alternative energy solutions goes on and on. Any alternative technology that assumes the use of conventional fuels is suspect."
"Alternative Energy: It's Time to Evaluate Our Options," Financial Sense website, Mar. 18, 2005