The Next Big Biofuel?

Jatropha seeds produce clean-burning diesel (without driving up your grocery bill)

Robert Adamo for Time

Mark Dalton with his jatropha trees in Florida. A Boeing 747 was recently test-flown using a 50-50 blend of jatropha and jet fuel.

Renewable energy, it turns out, does grow on trees. The fruit pods plucked from jatropha trees have seeds that produce clean-burning diesel fuel. But unlike corn and other biofuel sources, the jatropha doesn't have to compete with food crops for arable land. Even in the worst of soils, it grows like weeds. Sound too good to be true? That's why brothers Paul and Mark Dalton chose to name their Florida jatropha company My Dream Fuel.

If President Barack Obama's green-energy rhetoric is on the level, this should be the year the U.S. gets clued in to what much of the rest...

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