Category Energy

Fill up your diesel with tree sap

The Brazilian Copaifera langsdorfii can be tapped (ala maple syrup) for a natural diesel fuel that requires only simple filtering before being poured into a truck. The catch? The diesel only has a shelf-life of about 3 months. Ranches and…

Biofuels deemed a greenhouse threat

Almost all biofuels used today cause more greenhouse gas emissions than conventional fuels if the full emissions costs of producing these “green” fuels are taken into account, two studies being published Thursday have concluded. Destruction of habitat to grow biofuel…