The next time you're filling up at the pump, take a minute to consider where that gas came from and how we can produce it more responsibly. Here are 5 ways that eco-friendly biofuels help the planet as well as big business. See more »

"Lower than pond scum" may be a great insult; but we're not here to put these micro-organisms down any lower than they already are on the evolutionary chart. In fact, we're here to exalt them. See more »

Oil is not only a precious resource, it's also a financial hot commodity for the giant oil companies. That's because we have a love-hate relationship with it. See more »

To cut down on carbon dioxide emissions, governments, car manufacturers and utility companies have been seriously pursuing alternative energy sources. How much do you know about biofuels? See more »

The world produces an astonishing amount of olives -- 21.2 million tons, or 19.3 million metric tons, says the Food and Agriculture Organization of the United Nations. It would be a bummer for all those pits to just sit in a landfill. See more »

Can we use vegetable oil as fuel in our cars and in electrical generators? The short answer is yes. The longer answer is, well, yes, with a good number of qualifications. See more »

Instead of relying on futuristic power sources, steampunk-style contraptions look to the past and get their juice from steam. Does steam have staying power as a source of energy? See more »

We’re still a ways from a hemp-powered car, but industrial hemp has made a number of headlines in past years, especially as an alternative energy source. Is hemp the power of the future? See more »

Some people believe that algae could very well be the answer to some of our energy problems. But how will we grow enough of it to accommodate all of our needs? See more »

First-generation biofuels don't hold the promise they once did. Will the second generation be able to reduce the world's dependence on oil with affecting the global food supply? See more »