"Obama has invited politics into scientific task to update the catalog and assess the danger of industrial chemicals, some say."

"The Obama administration's top climate change scientists will unveil a report on Tuesday that details the impact of global warming on the United States and argues for fast action against it."

"Buying a solar system for your home still is not as simple or inexpensive as say picking up a new water heater. But solar energy advocates argue that the systems are affordable and obtainable for just about everyone -- right now."

"Most great scientists have prizes named after them. Or university buildings. Not Bob Drewes."

"The federal government plans to spend up to $3 million a year to demolish and rebuild uranium-contaminated structures across the Navajo Nation, where Cold War-era mining of the radioactive substance left a legacy of disease and death."

Abandoned gas stations dot some Florida highways. Economic conditions bear part of the blame. But operators' inability to pay for replacement of old, leaky tanks ironically may be causing more old tanks to be left in the ground.

"Oyster larvae have been dying by the billions. Scientists suspect it's a sign that carbon dioxide is dramatically affecting the ocean -- and if they're right, it could push Washington into the center of the debate about the future of the seas."