Even sober energy experts wonder if Alberta has gone mad as the province tears up a vast wilderness to get at the world's dirtiest, most expensive -- and perhaps last -- reserves of oil.
Inspired by Leonardo DiCaprio's new documentary, The 11th Hour, we asked a few great minds to get past the gloom and doom and tell us how to save the world.
Nanotechnology is poised to transform our lives: miraculous cancer treatments, perfect sunscreens, a super new power grid. One problem: Nobody knows if this multi-billion-dollar enterprise is actually safe.
In the week before the release of his documentary, The 11th Hour, Leonardo DiCaprio spoke with senior editor Laura Wright from his home in Los Angeles about why he made the film.
In the verdant hills of Kentucky and West Virginia, coal companies are decapitating entire mountains, wrecking one of our biologically richest and most iconic landscapes. Even more tragic, though, is how little anyone seems to care.
When Bill Moore told the dairy farmers of Lowville, New York that they should be milking wind, not cows, they were unimpressed. But eight years later, they're not tilting at windmills anymore -- they're making a small fortune. Behold the energy future.
How does the environment affect our DNA? Using a new generation of powerful genetic tools, scientists are finding unexpected answers that could revolutionize our understanding of the causes and prevention of disease.
In the darkness deep underground, beneath the Missouri Ozarks, a stunning variety of strange and beautiful creatures were almost snuffed out until Tom Aley arrived to save them.
California's San Pedro Bay ports form a vast metropolis of polluting cargo ships, trucks, and locomotives -- a "diesel death zone," say the neighbors, who are fighting back against the leviathan.
Sonar, which protects U.S. warships from enemy submarines, also kills whales and other marine mammals. Scientists are trying to figure out why, but the navy, which funds most of their research, seems to have other ideas.