(CNN) -- Billionaire oilman T. Boone Pickens is putting his clout behind renewable energy sources like wind power.
The legendary entrepreneur and philanthropist on Tuesday unveiled a new energy plan he says will decrease the United States' dependency on foreign oil by more than one-third and help shift American energy production toward renewable natural resources.
"The Pickens Plan" calls for investing in domestic renewable resources such as wind, and switching from oil to natural gas as a transportation fuel.
In a news conference outlining his proposal, Pickens said his impetus for the plan is the country's dangerous reliance on foreign oil.
"Our dependence on imported oil is killing our economy. It is the single biggest problem facing America today," he said.
"Wind power is ... clean, it's renewable. It's everything you want. And it's a stable supply of energy," Pickens told CNN in May. "It's unbelievable that we have not done more with wind."
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