"Manitoba's cosmetic pesticide ban was supposed to keep weed killers like Roundup out of the battle against pesky yet harmless weeds, but a CBC News investigation found store after store flouting the rules."

"California officials have talked tough about the contamination of up to 10,000 homes with lead from a battery recycling plant, calling it a regulatory failure, an environmental injustice and a public health disaster. Yet accountability for years of pollution by Exide Technologies has been scant."

"Efforts in Congress are heating up to bring some relief to California’s historic drought, just as the dry summer season is starting."

"The cost of replacing water lines in Flint, Michigan, has nearly doubled amid a health crisis from high lead levels in drinking water, the Detroit Free Press reported on Saturday."

Green infrastructure projects in Philadelphia are helping keep sewage from polluting rivers.

"Maryland Gov. Larry Hogan vetoed a bill Friday that would have required the state’s electricity suppliers to get more power from renewable sources, but allowed two other environmental bills — one restricting pesticide use and another requiring a study of oyster harvests — to become law without his signature."

"Some 2,000 residents of wildfire-ravaged Fort McMurray, Alberta, will not be able to return home this week as planned because of the risks posed by debris and contaminants including 'caustic' ash, Alberta Premier Rachel Notley said on Monday."

"A new study out this week doesn't show a definitive link, but reopens the debate over whether cell phones cause cancer."

"The National Association of Science Writers (NASW), founded in 1934 as one of the nation’s first professional journalism organizations, is in the midst of an existential crisis, and a report released this week suggests that the internal strife could well tear it apart."