In a dark courtroom, an attorney for chemical giant DuPont made a small gesture in hopes he could convince a jury his client isn’t liable for causing the cancer of two rural Ohioans: He walked to an overhead projector and put down a little white pill.

California restaurants should drop their lawsuit to block a first-in-the-nation natural gas ban in new construction, environmental groups said Thursday in an appeal to the California Restaurant Association.

Chocolate giant Hershey Co. is the latest company to raise concerns over federal changes to how electricity is priced in the country’s biggest power market.

The energy transition is coming to Houston and North America’s oil capital better get ready, according to one of the city’s best-known oil bankers.

Extending deadlines to comply with regulations to dispose of coal ash will worsen water pollution near ash ponds and landfills, five attorneys general said in a statement Wednesday.

TC Energy Corp.’s long-delayed Keystone XL pipeline took another step forward with U.S. approval of a key stretch of construction.

Volkswagen AG faces a C$196.5 million ($150 million) charge in Canada for importing tens of thousands of vehicles with software allowing the company to pollute far above legal limits.

The Trump administration on Wednesday approved a right-of-way authorization allowing the construction of the long-stalled Keystone XL oil pipeline across federal land.

Gulfport Energy Corp. has agreed to pay a $1.7 million fine and spend $2 million to plug leaks of smog-forming pollution from more than a dozen of its oil and gas pads in eastern Ohio under a draft settlement reached with the Justice Department.

A natural gas industry group is touting the fuel’s climate credentials as more cities move to ban it from homes and businesses.