Researchers at Carnegie Mellon University have proposed a model for better air pollution tracking around U.S. Steel’s Clairton Coke Works.
The plan drew praise from the White House and criticism from environmentalists who said they are too weak to actually slow global warming.
State wildlife officer traps and euthanizes black bear severely sick with mange and reported roaming in Kittanning, Armstrong County.
PennFuture says U.S. Steel Corp. is responsible for 6,700 clean-air violations in 3½ years at its Clairton Coke Works.
The 14 projects in Allegheny County -- more than any other county in the state -- will receive a total of $2,478,300.
Advocacy group says several regulatory agencies have “failed to uphold the law” in to protecting the public from illegal polluters.
Western Pennsylvania Conservancy teams up with Downtown groups to de-ice sidewalks more safely for trees and pets.
For the most part, scientists at the agencies and elsewhere blamed man-made global warming, with a boost from El Nino.
The oil and gas industry accounts for a quarter of U.S. methane emissions, according to federal estimates.
Mt. Lebanon commissioners are considering whether to request state permission to conduct an experiment in nonlethal deer control.
The oceans absorbed about 150 zettajoules of energy from 1865 to 1997, and then about another 150 in the next 18 years, the study said.
Temperatures sink back into the single digits this morning. A wind chill advisory is issued until 11 a.m.
The Fish and Wildlife Service has made it illegal to import them or move them across state lines.
The birds, all of a species known as the common murre, appear to have starved to death, federal wildlife officials say.
Carnegie Mellon University technologies, Speck and SpeckSensor, allow monitoring of particulate pollution levels at home and beyond.
The plant on Neville Island pushed the last coke out of its 56 ovens Wednesday night, ending 54 years of baking coal.
The DEP released documents that support an update to the state’s oil and gas drilling rules, which still face crucial hurdles this spring.
Recent satellite images of the Pacific Ocean shower at least four El Nino storms were brewing — and all aimed at California.
The purchase is the fourth addition to the conservancy’s Casselman River Conservation Area, expanding the preserve to almost 280 acres.
The cold weather may mean less people in the nine county parks, but the new park rangers intend to help visitors enjoy themselves all year.
A big timbering project in Allegheny National Forest aims to remove trees infested with invasive insects and curtail further damage.
Algae blooms, such as the one in Lake Erie near Toledo in 2014, could be the result.
Solar storm; Vanishing bees; Temporal melt; MERS vaccine; Warmest and warmer; Radio barrier; Earthquakes
For the city’s more than 16.8 million residents, Jan. 1 marks the beginning of the most draconian measures aimed at reducing pollution.
Group says report about exposure from Marcellus Shale gas development was deeply flawed and should be redone.
At Wingfield Pines Conservation Area, cleaner water has helped attract a vibrant bird life. Some fascinated humans are there to watch.
Poseidon Resources Corp. this month will begin commercially desalinating saltwater from the Pacific Ocean at its Carlsbad, Calif., facility.
Week ending Friday, December 18, 2015
CNX Gas Co. LLC will pay $450,000 after exceeding water withdrawal limits from Washington County reservoir between 2011 and 2014.
Under at least one climate model, Lake Erie’s number of severe blooms will likely double over the next 100 years.
The multi-year study was released Monday by the Pa. Department of Environmental Protection and the Pennsylvania Fish and Boat Commission.
Although the pattern could weaken by February, it could be enough to ease snow- and ice-removal expenses for government agencies.
The pact calls on the world to cut and then eliminate greenhouse gas pollution but imposing no sanctions on countries that don’t.
Meltdown legacy; Greenland melt; Etna eruption; Carbon peak; Rhino extinction; Canine conscience; Earthquakes
Some delegates said an elusive climate pact was in sight but others said it allowed rich nations to shift the responsibility.
Some residents wondered out loud if even the cost of the study is too much.
Washington County man alleges his well water was contaminated due to leaks at Yeager pad and wastewater impoundment.
The poor air quality is the result of an unseasonably warm air mass that continues to build across the state.
Plus: U.S. Court to hear cases, Google to buy clean energy
The document is full of competing options that will have to be disentangled when foreign and environmental ministers start meeting Monday.
Mount Washington’s Emerald View Park trail crew is spinning off to become an expended, citywide conservation corps.
Fracking art has found a voice in the region where thousands of wells have been drilled since the boom began in earnest in 2008.
“We can’t know exactly why Dorothy is no longer there, but it’s entirely possible to assume that she passed away,” Bob Mulvihill said.
El Niño peak; Eruption; Whale deaths; Warming suffocation; Tropical cyclones; Fish fear; Earthquakes
Green burials are handled with with minimum environmental impact; caskets and shrouds must be biodegradable.
To entice them the conservancy is planning a major expansion of the trail network in the northern region of Pittsburgh.
The summit will be the largest global convening of mayors, governors and local leaders on climate change.
President Barack Obama, the leaders of China, Russia and more than 140 other countries will converge on Paris to launch high-stakes talks.
The draft report by the independent Science Advisory Board notes inconsistencies in an EPA study of fracking’s impact on water supplies.
Two weeks after the attacks in Paris, France faces a big security challenge, a global mega-conference on climate change.