Why a simple bed of algae could save us from water pollution and fuel shortages

With water shortages looming in the future, we need new ways to clean water that's been fouled by human waste, agricultural runoff and industry. A new article published in BioScience (free PDF link) shows that we can use naturally-occurring algae as a filter. The plants would not only make the water suitable for… »6/02/11 12:44pm6/02/11 12:44pm

Fuel-Hungry Pirates Steal Used Cooking Oil to Run Their Cars

Restaurants across the United States are reporting that thieves are stealing their used cooking oil, turning it into black-market biodiesel made in garage distilleries. In many cities where biodiesel fuel is popular, restaurants can earn up to $1.25 per gallon of the used stuff. Oil pirates, however, are rarely… »5/23/08 10:00am5/23/08 10:00am