The Downside of an Airplane’s Descent

For greener airlines, a plane’s stairway descent to the airport from 40,000 feet is one of many changes we should consider.

How Are French Fries and Airplanes Similar?

The same oil that fried your potatoes might have fueled your airplane. Correctly processed, biofuels made from used cooking oil burn 80% cleaner than fossil fuels. Just add to that the incentive of US subsidies, emission limits and carbon taxes…

Food or Energy?

Biofuels create dilemmas. Whenever nations mandate converting corn or sugar into biofuel, their prices soar. People whose diets depend on these commodities are the first to suffer. What to do? Lower food prices or increase energy conservation? China’s answer was…