Navy carrier group powered partly by biofuel sets sail

SAN DIEGO (AP) — The Navy on Wednesday launched its first carrier strike group powered partly by biofuel — a mix made from beef fat — calling it a milestone toward easing the military’s reliance on foreign oil.

The maritime branch touted the warships as the centerpiece of its “Great Green Fleet” — part of a Navy-wide initiative that aims to draw 50 percent of its power from alternative energy in four years.