WBEZ 91.5 Chicago

Researchers at Crater Lake National Park in southern Oregon have spent the past two years documenting the park's natural sound.

Residents of the Southeast Side have faced pollution from nearby Indiana coal plants. The decision to shut down an aging plant in the early part of 2011 brought hope for fresher air. But a new plant reignited concerns--and several Southeast Side community groups have since joined forces.

Ice on the Arctic Ocean has melted to its second-lowest level on record, according to researchers in Colorado who track this trend.

Scientists are beginning to get a picture of the environmental impact of Tropical Storm Irene, which ripped through some of the East Coast's most pristine rivers, triggering hundreds of oil, chemical and sewage spills.Now, some environmental groups worry that the cleanup could cause even more harm

Former Vice President Al Gore has spent much of the last decade on advocacy for environmental issues. He won an Oscar for his 2006 documentary An Inconvenient Truth.

Saying that "reducing regulatory burdens and regulatory uncertainty, particularly as our economy continues to recover" prompted his administration to rethink, President Obama just announced that he's withdrawing proposed regulations that would have tightened government smog standards in a bid to pro

 President Obama has a major decision to make, and his support within the environmental community may hang in the balance.