One element, sure to provoke a big fight: limits on carbon dioxide emissions from power plants.

Fecal matter in the once-pristine north end creek runs up to 50 times allowable limits. But public help is being sought in tracing the sources of pollution.

"'Trust me' is not good enough" the provincial government told the oil and gas company last week. The power and the politics behind their big stand.

Eleven days after a tornado killed 24 people and destroyed hundreds of homes in Oklahoma, round two hit the heartland on Friday. None of the tornadoes that touched down Friday were as powerful as the one that tore through much of Moore, Okla., on May 20.

A radiological contamination at Magnuson Park was detected in 2009 and the area was fenced off. During a meeting Wednesday night, the Seattle Department of Parks and Recreation acknowledged that they did not share the information with the public. The department said the contamination didn't present a threat as long as people stayed out of the fenced off area. 

 The LA River became a symbol of Los Angeles' unchecked sprawl, an occasional backdrop for movie car chases — and punch lines.

Seattle and other cities have shown that it isn't that hard to live without the supposed convenience of the wasteful bags.

Other U.S. cities can expect to have similar visual blights as Alberta oil is sent to refineries near the Keystone XL pipeline.

A kiteboarder’s alternative-energy plan.

Before the Bullitt Center, there was Capitol Hill's Bertschi School that received certification as a "Living Building" for its self-sustainability.