Costner has been working on this technology for 15 years, and invested $20 million of his personal funds to support the project. He says he was inspired to work on this project after the Exxon Valdez spill in 1989 and the making of Waterworld, which despite being a box office bomb, I rather enjoyed.
He has even testified before Congress.
For more info:
Energy Boom Policy
Ocean Therapy Solutions