Surf’s Up! Energy from the Motions of the Oceans
Today, the world has abundant sources of hydrocarbons. North America alone has considerable potential in its shale deposits and tar sands; they will be exploited once their price per barrel becomes competitive. In addition, U.S. coal deposits rival the world’s largest oil fields in equivalent energy. And U.S. reserves of natural gas are actually increasing. If things are so good, is there a problem?