The Department of Defense, a huge consumer of petroleum, is trying to develop biofuels on a large scale as an alternative. Republicans in Congress have voted the program out of an authorization bill, saying oil and even coal can meet the military's needs.

American farmers' move toward growing more corn for ethanol production has been one of the factors cited for rapidly rising food costs. The…

As the price of oil passes $100/barrel, motorists aren’t the only ones that suffer. So does the airline industry, which has relied on cheap fuel…

With a sticker price half of the world’s cheapest cars (like India’s Maruti and China’s Chery brands), the $2,500 Nano will probably…