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Officials believe someone illegally dumped 4,000 gallons of fracking wastewater in a sewer manhole.
The climate march began on March 1 in Los Angeles en route to Washington, D.C. by Nov. 1.
The cross-country Climate March arrives in Pittsburgh for a rally to promote initiatives to stop climate change.
A landscape architect’s mapping and data software system has become a go-to resource for storm water mitigation.
Cities heed warning of climate scientists as leaders invest in combating future flood waters.
PEMA and the railroads have 30 days to provide the documents or appeal the ruling to Commonwealth Court.
Regional commission seeks 40 percent cut in Lake Erie’s phosphorus flows to stem toxic algae outbreaks that threaten drinking water.
California enacts 1st U.S. statewide ban on single-use plastic bags at supermarkets, groceries, convenience stores and pharmacies.
Bash Bug, also known as Shellshock, may pose serious threat to computers and devices such as home Internet routers.
The federal government issued a new blueprint Wednesday for its efforts to restore the Great Lakes.
BP must honor compensation deals it made with companies claiming losses in the 2010 Gulf oil spill.
Helping cities combat the threat of algae-feeding phosphorus in the Great Lakes has jumped ahead as a national environmental priority.
Mr. Obama took credit for putting the United States on course to reduce its carbon emissions by 2020.
Investors and companies are disinvesting in fossil fuels, perhaps the most tangible action on global warming.
New York City’s People’s Climate March drew more than 310,000 people this weekend, organizers said, tripling the original forecast.
The 2.3 percent jump was the latest indication that the world remains far off track in its efforts to control global warming.
The Post-Gazette analyzed every paper record for every Marcellus well incident that resulted in fines through June 1, 2014.
Authorities said the spill into Little Mingo Creek appeared to be contained Saturday, two days after it was discovered.