"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.

"BP Plc appointed U.S.-born Robert Dudley as chief executive officer and pledged to accelerate asset sales to as much as $30 billion after the Gulf of Mexico oil spill led to a record loss."
 

"Continued climate change will drive Mexican farm workers to migrate to the United States in greater numbers, environmental experts predicted on Monday."
 

"A White House-backed program that allows property owners to pay for energy improvements like solar panels or efficient furnaces through an additional assessment to their property taxes may soon be shut down."

"It's ... difficult to get an absolute answer about just what is, or isn't, in Delaware's water -- difficult enough that some real estate agents routinely suggest water-filter installations even in the absence of known problems."