Environmental and community groups want the EPA to follow through on mandate to review, revise rules and policies.
The scientific community is seeking to dampen what it has seen as the Indian government’s self-congratulation.
This year’s Brood V cicadas will emerge in mid-to-late May, based on historic records, some dating back more than 200 years.
Officials have warned farmers that the allium leafminer destroys leeks, onions, garlic, chives, shallots and green onions.
“You’re right that presidents are often busy, but … in America, there is no more important title than citizen,” the president said.
The agency said the new monitors will better measure emissions from shale gas wells and compressor stations.
Tree Pittsburgh providing seedlings of five species of local, native trees grown at its Heritage Nursery in Lawrenceville.
The completion of the New Safe Confinement could contain the radiation from mankind’s worst nuclear catastrophe for a century.
Never have so many countries signed an agreement on the first available day. States that don’t sign Friday have a year to do so.
Regulators said the project fails to meet standards that protect hundreds of streams, wetlands and other water resources in its path.
McConway & Torley steel foundry fire on Wednesday night resulted in one injury. The cause is under investigation.
Two state regulators and a city employee were charged with misconduct, evidence-tampering and other offenses over the lead contamination.
Last month was the hottest March in 137 years of record keeping, according to data released Tuesday by the NOAA.
The American Lung Association’s annual report found that the Tri-State area remains among the most polluted in the U.S. in two categories.
The second hatchling was confirmed after observing two tiny, fuzzy heads showing just above the nest’s rim.
The vice president said the company avoids drilling where residents might have the financial resources to challenge the developments.
The delay suggests to some that the Department of Environmental Protection may determine additional research is needed.
The World Wildlife Fund says surveys indicate that 3,890 tigers now live in 13 countries across Asia, up from an estimated 3,200 in 2010.
The melting of Greenland and Antarctica isn’t just raising seas — it’s changing the Earth’s rotation
A changing climate is seen as at least partly — although perhaps not wholly — responsible.
All Americans are vulnerable to climate change affecting their health and the risks are varied and severe, administration officials said.
White-nose syndrome has swept across 28 states including Pennsylvania and five Canadian provinces.
Among several panels on Saturday, one reported out some results of the Pittsburgh 2030 commitment to reduce energy use by 50 percent.
Scientists — including one from Penn State — behind a new study published in the journal Nature used sophisticated computer models.
The Allegheny County Health Department agreement with U.S. Steel to cut emissions at Clairton Coke Works raises concerns, not expectations.
Their study lends support to a growing body of research pointing to the grim health consequences of air pollution.
Environmental outreach coordinator Mary Kate Ranii made Lent a mindful exercise in waste reduction.
The Pa. Independent Petroleum Producers Association says it has been swept up in effort to modernize environmental protections at wells.
The summit was prompted in part by Western states’ drought and the Flint, Mich., drinking water scandal.
The findings are likely to replay a debate among climate scientists that started when a draft version of the paper came out last year.
The Audubon Society of Western Pennsylvania said that at approximately 9:40 p.m., eaglet number two hatched in the Hays bald eagle nest.
Pips began Sunday with the bald eagle pushing through its shell at 6:55 a.m. today.
The first signs of hatching are right on schedule for egg laid 36 days ago.
Council voted unanimously to hire 10 goats and a miniature donkey as an eco-friendly way to help clear the areas of invasive vegetation.
Move is a major reversal for the administration, but it’s consistent with the president’s steps to address climate change.
Theodore Roosevelt IV is among those attending the North American Wildlife and Natural Resources Conference in Pittsburgh.
Their announcement also served as a broader reaffirmation of the cooperative spirit long shared between the countries.
They have spiked more in the period from February 2015 to February 2016 than in any other comparable period dating back to 1959.
The architect says a green approach to controlling the discharge of sewage into the region’s rivers can leverage economic development.
Matt Lamanna, Carnegie Museum of Natural History paleontologist, will do a live Q&A via Skype from Antarctica today.
The egg, belonging to an eagle pair nesting over a cliff, was laid shortly before 4:30 p.m. Wednesday.
According to new data, Arctic sea ice extent is running not only well below average, but also below levels seen during 2012.
New study finds buffers between shale gas wells and residences, businesses and schools are not protective of human health.
The Health Department has been working for two years on a new five-year permit for the foundry.
Pollinators, including 20,000 species of wild bees, contribute to growth of fruit, vegetables and many nuts, as well as flowering plants.
This December, the butterflies covered 10 acres, compared to 2.8 acres in 2014 and a record low of 1.66 acres in 2013.
Millions of old “bubble-back” TVs are gathering dust in storage, but recycling of the cathode ray tube sets is in jeopardy in Pennsylvania.
City and county officials say they need more time to meet federal deadlines sewage overflows that foul the regions rivers and steams.
The truck was coming from a gas well operation, and the type of substance and how much has been spilled remain unknown.
Meanwhile, the eagles in Harmar are active but have yet to produce an egg.
Scientists at NASA’s Jet Propulsion Laboratory figured this out by measuring changes in Earth’s gravity with twin satellites.