"'When it comes to climate change, Congressman Joe Walsh Keeps His Head in the Sand,' a mobile billboard in the Illinois representative's district declares."

"Hair stylist Natalija Josimov combed the straightening solution through her client's hair. She snapped on the blow dryer, and a plume of white vapor wrapped them in a toxic cloud."

"SEATTLE — Gliding through the clear, emerald water of Puget Sound, Diver Laura James stopped when something shiny on the bottom caught her eye. She reached down and picked up a tire-flattened beer can."

"KANSAS CITY, Mo. -- A federal agency says TransCanada Corp. has temporarily shut down its existing Keystone pipeline after tests showed 'possible safety issues.'"

"After a hot spring and a scorching summer, this winter is likely to continue a U.S. warming trend that could make 2012 the hottest year since modern record-keeping began, U.S. weather experts said Thursday."

"Job growth is one of the most important issues of the 2012 election, and a recent report suggests that continued investment in green jobs could be a boon to the U.S. economy."

"Climate change contributed to a fivefold increase in weather-related natural disasters in North America over the past three decades, according to Munich Re, the world’s biggest reinsurer."

"As the wind industry clamors to renew a key tax credit (again), industry leaders explore how to break free from the boom-bust cycle the subsidy has them trapped in."

"ANCHORAGE, Alaska — For hundreds, perhaps thousands, of years, Natives of Southeast Alaska have paid artisans to create tools, clothing and ceremonial regalia adorned with feathers."

"Federal appeals court judges appeared skeptical today about U.S. EPA's argument that it is required under the Clean Air Act to use a less stringent implementation regime for fine particulates than it is for more coarse -- and less dangerous -- particles."