coal

The Earth was so young 300 million years ago, the first land animals had yet to evolve into dinosaurs, most scientists believe. If that's the case, how do you explain the discovery in Russia of a piece of a gear shift -- a common machine part -- embedded into a hunk of 300-million-year-old...

COLUMBIA, Mo. – College students nationwide are urging their schools to stop using coal produced at campus power plants or purchased from private utilities in favor of cleaner energy sources ranging from wood chips to geothermal power. On Wednesday, students at several campuses nationwide...