U.S. Steel pledges up to $2.5 billion in upgrades to Mon Valley Works
The upgrades will implement new technology that the company says will reduce its emissions and produce a “cleaner, more efficient production process.” The push toward a less emissions-intensive steelmaking process comes as Allegheny County is working on its climate action plan that urges U.S. Steel to phase out its current processes.
Care about Pittsburgh? Get local stories that matter from Public Source, delivered to your inbox.
Have a tip?
We have secure options for sharing information confidentially.
WHO WE ARE
Pittsburgh’s Public Source informs and inspires the Pittsburgh region through the power of deep, independent journalism.
Digging deeper for Pittsburgh
ICE, immigration and local response
Reporting on the reach and impact of immigration enforcement in Pittsburgh and across Southwestern Pennsylvania.
More local news
Our nonprofit newsroom needs your support.
Every story you read is made possible through the support of readers like you. Help Public Source keep producing quality journalism in Pittsburgh with a gift today.
Video: Critic of Springdale police ICE pact did not break rule prior to rough arrest
PPS approves plan to close and consolidate schools, reversing board’s November rejection
Most Read
Allegheny County Council elects environmental advocate as president, replacing Catena
Pittsburgh school takes last year’s 100+ fights down to single digits
Small historical societies keep big stories alive
Please don’t laugh: Improv improved me in so many ways
Primary loss by Allegheny County Council president a sign of the times
Who’s running for office in Allegheny County in 2026?
Stacy Garrity and Josh Shapiro’s quiet primary for Pennsylvania governor is over
Citywide inclusionary zoning swapped for bonus program
Election results: Pittsburgh-area primaries for Congress, state House and more
Primary Day 2026: How to vote, what’s on the ballot
An autistic student’s path through college shows the power, and limits, of support
Allegheny County A-Team of behavioral health crisis responders should go countywide — without delay
Something went wrong. Please refresh the page and/or try again.
Local events
Develop PGH
Your stop for the ins and outs on development and planning in the Pittsburgh region
Board Explorer
Understanding Pittsburgh’s unelected power structure
Public-service guides
Important information for the Pittsburgh-area community curated by our team of journalists
First-person essays
Compelling personal stories told by the people living them
