Science prying out secrets of early era of global warming. Researchers find evidence for cause of ancient global warming. Researchers find evidence for cause of ancient global warming. Mass extinction traced to oceanic methane burp. Uncorking nature's gas bottle.
Scientists hope to tap deep deposits of natural gas in areas near Japan.
The Daily Yomiuri. Call to promote use of nuclear energy in India. Seabed may be source of energy for centuries. The Plain Dealer.