"Indigenous activists threatened a clash with Brazil's government as they dispatched boats carrying 150 men on Wednesday to occupy the planned site of a controversial hydro-electric dam in the Amazon, a chief said."

"Rates of lung cancer among women and colorectal cancer among men are significantly elevated throughout Pompton Lakes, but two other cancers linked to a neighborhood contaminated by a DuPont munitions plant are not elevated borough-wide, health officials said Wednesday."

"West Virginians who live near streams polluted by coal mining are more likely to die of cancer, according to a first-of-its kind study published by researchers at West Virginia University and Virginia Tech."

"Three weeks after the Upper Big Branch explosion left 29 mine workers dead in Raleigh County, federal regulators fanned out in 10 states to examine 57 mines for safety flaws in a massive effort to avoid a repeat of the worst mining tragedy in four decades."

"Pollution before the first Earth Day was not only visible, it was in your face: Cleveland’s Cuyahoga River caught fire. ... The challenges to the planet today are largely invisible -- and therefore tougher to tackle."

"The first of 98 rescued workers from the oil rig explosion on the Deepwater Horizon oil rig arrived at a Kenner hotel Thursday shortly after 4:30 a.m., after  a 100-plus mile boat journey from the burning rig to Port Fourchon Wednesday evening."