Rebecca Gasper

The US Has a Low-Carbon Vehicle Fuel — But It's Being Thrown Away

Cleantech / The United States generates millions of tons of food scraps; inedible fats, oils and greases; sewage and manure. Some of this organic waste is used for energy or fertilizer, but most of it — around 50 million tons a year — is sent to landfills, incinerated or otherwise left to decompose. - 6 years ago