Matt Peters of Hazelwood joins about 100 people for a Pittsburgh Chapter of the Sierra Club rally to support the EPA's Clean Power Plan on Thursday in the courtyard of the Allegheny County Courthouse, Downtown.

Rally urges elected officials to support Obama's Clean Power Plan

Plan to reduce greenhouse gas emissions is expected to be announced Monday.

1 day ago

Nation briefs: Prison officer charged with raping inmates

Plus: Jail releases Bland footage, Dad defends Colo. shooter, Co-pilot broke spacecraft, Federal pollution regulation

3 days ago

 Exhaust rises from smokestacks in front of piles of coal in Thompsons, Texas. A federal appeals court today ordered the Environmental Protection Agency to relax some limits it set on smokestack emissions that cross state lines and taint downwind areas with air pollution from power plants they can't control.

Court orders EPA to relax air-pollution limits in 13 states

The federal appeals court also upheld the EPA’s right to impose the standards, which states and industry groups called overly burdensome.

3 days ago

 The morning sun peers through the heavy haze and the Pittsburgh skyline early this morning in this view from Grandview Avenue on Mount Washington.

State issues pollution alert for Pittsburgh area today

The State Department of Environmental Protection issues a code orange for ozone Tuesday as temperatures approach 90 degrees.

3 days ago

U.S. private sector vows to ante up on climate finance

Thirteen major firms offer billions in environmental financing pledges to support Obama administration’s global climate change agreement.

4 days ago

Tests find radiation in Clyde Mine water in Washington County

Testing found evidence of radiation contamination in water discharges likely related to past dumping of shale gas drilling wastewater.

4 days ago

 Vivien Li begins her new job as president and CEO of Riverlife on Oct 1.

Riverlife organization lands prize catch from Boston’s Harbor

Vivien Li, who for 24 years led the Boston Harbor Association, becomes president and CEO of Riverlife on Oct 1.

4 days ago

Code orange pollution day issued Tuesday for Pittsburgh

The state has issued a “code orange” alert with the air quality index expected to enter the range of 101 to 150 for Pittsburgh,

4 days ago

Moon Area district considers solar panels to power schools

The school board is looking into generating enough electricity from district rooftops to provide about 70 percent of its energy needs.

1 week ago

 A great white shark researcher stands in the clear shark cage while a great white shark swims by.

The mysteries of the great white shark persist

With the return of the seal and federal protections, great white sharks have returned to Atlantic Coast shorelines.

1 week ago

 A group of sand tiger sharks swim together at the Pittsburgh Zoo & PPG Aquarium's.

Sharks are there to get you and other myths about sharks

“Shark Week” and “Jaws” give sharks a bad rep, says Mt. Lebanon native David Shiffman. “Sharknado” films, not so much.

1 week ago

 Pope Francis greets Rome Mayor Ignazio Marino as he meets mayors gathered in the Synod Hall during a conference Tuesday on Modern Slavery and Climate Change at the Vatican. Next to Mr. Marino, at left, is Paris Mayor Anne Hidalgo, New York Mayor Bill de Blasio, at right, and between the two, one row back, is Boston Mayor Marty Walsh.

World mayors at Vatican urge 'bold climate agreement'

Sixty mayors from around the globe gathered to declare that climate change is real and man-made and to announce new measures to fight it.

1 week ago

2015 shaping up to be hottest year ever recorded

El Nino, the expanding warmer-than-usual Pacific waters, is on pace this year to be the strongest on record, with ripple effects on weather

1 week ago

 Vivien Li will become president and chief executive of Riverlife starting in October.

Woman who helped revitalize Boston harbor to head Pittsburgh's Riverlife

Vivien Li, president of The Boston Harbor Association, succeeds Lisa Schroeder, who ran Riverlife for 15 years before leaving in January.

1 week ago

 "Silver" is observed during a first exam at the Cathedral of Learning in May.

Lone peregrine falcon chick hatched at Cathedral of Learning dies

The chick, named “Silver,” was the 43rd hatched by Dorothy, the female peregrine that has nested at the Oakland landmark since 2001.

1 week ago

Moon Area considers solar energy for schools

Superintendent Curt Baker said Moon Area would be the first district in the Pittsburgh area to have such a system.

1 week ago

 Bystanders look on along Interstate 15 on the Cajon Pass, Friday, near San Bernadino, Calif., as a fast-moving wildfire swept across the Southern California freeway.

Rain calms California fire that jumped freeway, burned cars

The fire had burned over Interstate 15 on Friday in Cajon Pass, a mountainous area 55 miles northeast of Los Angeles.

1 week ago

 President Barack Obama took a tour Thursday of the medium-security El Reno Federal Correction Institute in Oklahoma.

National briefs: Obama visits federal correctional facility

Plus: IRS customer hang-ups, Bush to recover in 3-4 months, Case against GOP Walker dropped, Fracking health study, Texas execution halted

2 weeks ago

 Joe Stavish remarks on the hardiness of honey locust trees during Tree Pittsburgh’s Tree Tenders program on Saturday.

Tree Pittsburgh looks to branch out with first symposium

The Tree Tenders program will unite local advocates on Saturday at the August Wilson Center in Downtown.

2 weeks ago

 Volunteers Masoud Sayles and Hank Gostkowski, along with Sharon Soles, site ambassador, and Jibran Ahmed from GTECH work on the garden at the Palisades in McKeesport.

ReClaim McKeesport program revitalizes 10 vacant lots into green spaces

Under GTECH Strategies’ ReClaim McKeesport program, 10 “ambassadors” were given $3,000 each for a project they had chosen.

3 weeks ago

 Juliana Sandford, 17, sets up the SSA Farm tent at the Fox Chapel Faemers Market, held weekly on the grounds of Shady Side Academy.

Shady Side Academy farmers market teaches students sustainability

The academy’s students plant, grow, harvest and sell their own crops at the Fox Chapel Farmers Market.

3 weeks ago

 Goats are released on a hillside in Polish Hill to eat brush and vines not easily cut back by other means in 2014.

Pittsburgh urban farming takes 'big step forward' with new ordinance

The bill approved by Pittsburgh City Council makes it easier to get own limited amounts of chickens, goats, bees and other animals.

3 weeks ago

Obama administration outlines plans to enable more Americans to have access to solar energy

The Obama administration is boosting solar projects to make them available to low- and middle-income Americans.

3 weeks ago

Nation briefs: Court upholds Chesapeake clean-up plan

Plus: Heroin users; birth control costs; new Facebook data center; National Academy of Sciences; Dixie flag; Charleston suspect

3 weeks ago

 Larry Schweiger

PennFuture picks Pittsburgh native as CEO

Larry Schweiger replaces former president and CEO Cindy Dunn, who now heads the state Department of Conservation and Natural Resources.

3 weeks ago

 Allegheny County had an average of about 107 asbestos-related deaths a year for the 15 years studied, the highest of any county in the state.

Study: Asbestos deaths in Allegheny County, Pa. much higher than national average

Asbestos, called the “hidden killer” because illnesses take decades to develop, still causes diseases despite not being made in the U.S.

3 weeks ago

 The state game commission preliminarily passed a measure Tuesday to raise the fine to $2,500 for killing bald or golden eagles, which are protected under state and federal law even though they aren’t considered an endangered or threatened species in Pennsylvania.

State proposes raising fines for killing bald or golden eagles

In time for July 4, the Pennsylvania Game Commission proposed raising fines for killing bald eagles to $2,500 for a first offense.

4 weeks ago

 Joe Divack, assistant executive director of Allegheny CleanWays, stands in a dump site in Hazelwood.

Nonprofit, task force targeting Hazelwood litter

Volunteers have collected nearly 50 tons of trash alone this year.

1 month ago