Saving an Underwater World Sylvia Earle, marine biologist and underwater explorer, dedicates herself to protecting the world under water. A new power station in Scotland generates electricity from ocean waves. The Moon has powerful effects here on Earth. The Worldwatch Institute issues revealing facts about coal, nuclear, wind, and solar power. Cool Off with Algae Scientists propose that fertilizing the ocean with iron may cause more phytoplankton to grow, thereby counteracting global warming.
Scientists call for better tracking of near-Earth objects.
As the world's water resources are being pushed to the limit, solutions need to come quickly. The melting of the Arctic ice cap raises new questions about global warming. Ghost Roads Haunt U.S. Forests Roads illegally cut into forests around the country cause environmental problems. Explore the science of how hurricanes work and what's in store for the remainder of the Atlantic Basin hurricane season. With the Olympics in Australia, global attention turns to the growing ozone hole nearby.