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By James Mitchell Crow of Nature magazine The hole in the ozone layer over Antarctica is starting to heal, say researchers in Australia. [More]

Key concepts Gravity [More]

After seven hours of dragging a metal trawl in the ocean, we pulled the manta ray-looking contraption on board--salt water splashing everywhere--to see what was inside. We reached into the slimy net, flipped it inside out and dumped the contents onto a mesh screen.

Sarasa Satish is a waste picker. Every morning, she starts promptly at 8:30 a.m. going door to door, collecting throwaway materials from houses in the Rajendra Nagar slums of Bangalore, India

By Mari Saito and Kevin Krolicki TOKYO, May 16 (Reuters) - The magnitude 9 earthquake that [More]

By Kathy Finn AMELIA, Louisiana (Reuters) - A day after Army engineers opened a key spillway to relieve flooding along the Mississippi River, residents of small Louisiana towns braced on Sunday for a surge of water that could leave thousands of homes and farms under as much as 20 feet of water. [More]

DHAKA (Reuters) - Solar power is in place in nearly a million homes in rural Bangladesh, which is drastically short of electricity, the World Bank said on Monday. "More than 870,000 homes and shops in remote rural areas have installed solar home systems with support from the World Bank and other development partners," the global lender said in a statement. [More]

Many people are working to harness renewable energy sources more effectively and to enhance energy efficiency. All good. Most of the efforts will probably result in welcomed but incremental improvements, however.

jQuery(document).ready(function() { [More]

* Alon workers building levee at 80,000 bpd refinery * Spillway opening reduces flooding risk for 8 refineries [More]

In 1959 physicist Gilbert Plass warned in Scientific American that increasing concentrations of carbon dioxide in the atmosphere was causing climate change. In 1965 President Lyndon Johnson warned Congress of the risk . In 1979 the U.S

Want to convince with your gift of gab? Sales people are hip to the tricks, stating everything as a question and doing more listening than yapping.

It is the ultimate paradox of American health care: going to the hospital can kill you. Every year nearly two million hospital-acquired infections claim roughly 100,000 lives and add $45 billion in costs; that is as many lives and dollars as taken by AIDS, breast cancer and auto accidents combined.

We started trawling! The tide of seasickness has passed and the crew was up early this morning getting ready to deploy the high-speed trawl. The trawl looks like a manta ray and collects samples from the surface of the ocean through a fine mesh net attached to the trawl’s metal "mouth." The sampling net will collect anything in its path, usually plastic fragments and plankton.

Used to be that sick kids got lollypops after a visit with the doctor. But in some cases candy can be more than a reward--it can be part of the therapy. Because scientists have found that, in battling chronic infections, sugar can boost the effectiveness of antibiotics