"Apple Inc rejoined the EPEAT environmental ratings system on Friday, acknowledging that its decision to stop participating in a program that rates the green credentials of electronic products was a mistake."

"A dispute between Canadian pipeline giant Enbridge Inc. and a small Colorado operator is flaring into a political showdown over whether U.S. domestic production will be squeezed out by oil sands crude flowing from across the northern border."

"Despite promises from the nuclear industry to regulators and consumers that they learned from mistakes of the past, the nation's first two nuclear reactor projects built from scratch in 30 years are headed toward hundreds of millions of dollars in cost overruns and months, if not years, of delays."

"The wind power industry, which has been one of the nation’s fastest growing energy sectors, is facing layoffs and factory closings as a federal subsidy nears an end."

"Evidence showing that cap and trade can bolster a new revenue stream has some state and federal officials quietly seeking answers."

"ANN ARBOR, Mich. -- Michael J. Potter is one of the last little big men left in organic food. More than 40 years ago, Mr. Potter bought into a hippie cafe and 'whole earth' grocery here that has since morphed into a major organic foods producer and wholesaler, Eden Foods."

"Clashes in northern Peru between police and demonstrators opposing a multi-million dollar gold mining project have left at least three people dead."

"ALBANY -- Before going home for the summer last week, state lawmakers quietly added nine more months of life to a pollution cleanup program that has turned into a billion-dollar cookie jar for affluent developers."

"Alpha Natural Resources announced Wednesday it’s permanently closing two mines and a coal preparation plant in Logan County [WV], and scaling back operations at two other southern West Virginia operations."

"Abound Solar, a solar panel maker that received a $400 million loan guarantee from the federal government, announced on Thursday that it would file for bankruptcy amid plummeting prices and intense competition from Chinese manufacturers in the solar equipment market."