"A nascent technology, tidal power is destined to remain a niche player in the United States' energy portfolio. But the low-carbon energy source has one advantage over wind and solar: It's as dependable as the moon's phases. Investors and public utilities are taking notice."

"Regulators are finally considering a proposal to clean up Yellowknife's Giant Mine, long one of Canada's worst contaminated sites and Environment Canada's single largest remediation project."

Jennifer Taggart, a southern California lawyer/engineer who blogs as The Smart Mama, pointed her hand-held X-ray flourescence analyzer at some kids' Shrek glasses from McDonalds coveted by her 7-year old -- and within days sparked a recall of 12 million glasses because they contained cadmium.

"In the fight over proposed mining projects in northern Minnesota, a new player with a surprising amount of clout has emerged -- wild rice."

"TABI, Mexico -- The first time Araceli Bastida Be heard the phrase 'climate change' was on TV two years ago. Then she began to understand why strange things had been happening in her village."

"Don Blankenship, the outspoken and controversial CEO of Massey Energy, will retire effective Dec. 31, the company announced late Friday."

"Todd Stern, the chief American climate change negotiator, ... made clear at an afternoon press briefing that the United States was seeking an agreement that addresses all the major issues that make up the current climate change agenda. He said quite emphatically that he was not interested in some sort of face-saving partial deal that makes progress on some questions but kicks the more difficult problems down the road."