Backed by the state and federal governments, Pennsylvania’s hydrogen projects were supposed to create jobs and slash emissions. Now, they’re in limbo.

Backed by the federal government and bipartisan leadership, Pennsylvania’s hydrogen projects were supposed to create jobs and ...

A developer proposing a 3 million square-foot complex south of Pittsburgh presented to hundreds of people — many of them ...

Allegheny County will hold public meetings today and Oct. 28 on the proposed Springdale data center. Its review flagged missing Health Department certification.

Pittsburgh's Public Source asked local candidates where they stand on ICE, transit funding, legal marijuana and data centers ahead of Election Day.

Duquesne Light says it’s hardened its Pittsburgh-area grid and will prune 40,000 trees this year. Readers told us about ...

The Allegheny County Health Department now says both confirmed measles cases attended the same North Hills Christian school, ...

The first oil deals were struck on the streets of Oil City, about 90 miles north of Pittsburgh. To create a more formal system, the oil traders developed a railroad car designed to be a rolling oil ...

Pennsylvania diesel averages $6.50 a gallon as war disrupts the Strait of Hormuz. A historian traces today’s oil market back ...

A second Allegheny County child has measles. The student attends a private religious school where the reported vaccination ...

Emails obtained by Pittsburgh's Public Source show a developer's plan for a 3.7 million-square-foot data center campus and ...

Pittsburgh's Public Source reviewed ALCOSAN's $1.03 billion Ohio River Tunnel contract and found little of the work headed to ...