Up to half the world’s food is wasted — that’s the conclusion of a study by Britain’s Institution of Mechanical Engineers.

An alarming amount of the food we produce is never eaten. It’s a huge waste of land, water, labor, fuel and other resources. How to limit the losses? That depends on where we live.

Where food is cheap and plentiful, consumers are the biggest wasters — whether at home, in restaurants or at school. But how much of this waste is preventable?

The United States isn't the only country looking for a place to store nuclear waste safely for all eternity. But the U.S. may be closer to a solution.

If these wells are leaking, they could contaminate water supplies and disrupt the most important way we dispose of liquid waste.

Here in the United Kingdom, retail giants like Wal-Mart and grocery store chain Tesco are food waste into green energy.

Easy Answer: Yup. Especially if you're willing to make nice with worms….

The circle of life. Milorganite pellets (photo above) are made from recycled waste, aka biosolids, and used to help fertilize crops and improve l…