"A team of federal investigators known as the 'BP squad' is assembling in New Orleans to conduct a wide-ranging criminal probe that will focus on at least three companies and examine whether their cozy relations with federal regulators contributed to the oil disaster in the Gulf of Mexico, according to law enforcement and other sources."

"The Alta Wind Energy Center — with plans for thousands of acres of turbines to generate electricity for 600,000 Southern California homes — officially breaks ground Tuesday."

"The icy Arctic waters around Norway's archipelago of Svalbard may seem pristine and clear, but like the rest of the world's oceans they are facing the threat of growing acidity."

"A deadly infectious disease once thought to be exclusively tropical has gained a toehold in the Pacific Northwest, and health experts suspect climate change is partially to blame."

"Michigan could save billions annually by protecting children from exposure to environmental hazards, according to a study released today."

A Penn State anthropologist puts forth a new hypothesis: that the nearly universal human tendency to bond altruistically with animals is a unique trait that has evolved because it gives us many advantages.

"BP PLC and the other companies involved in the Gulf of Mexico oil spill are faced with fast-multiplying lawsuits that will provoke one of the most drawn-out and costliest legal battles in U.S. history, one that could easily consume the $20 billion set aside by BP to pay for the disaster, according to legal experts and attorneys nationwide."

"As lawmakers and health experts wrestle over whether a controversial chemical, bisphenol-A, should be banned from food and beverage containers, a new analysis by an environmental group suggests Americans are being exposed to BPA through another, surprising route: paper receipts."

A Senate committee defeated proposal to revive the Yucca Mountain nuclear waste disposal site.