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The palladium rally continues to defy all expectations.

A critical route for American coal exports to Asia is drying up after yet another U.S. port city passed a law to bar the fuel from leaving its shores.

Independent engine maker Cummins Inc. along with Daimler Trucks & Buses, global corporations at the center of the U.S. commercial vehicle industry, are accelerating efforts to combat climate change with their products and at their plants.

Jacobs Vehicle Systems is taking to the road to demonstrate its latest technologies directly to fleets and others as the company retools how it wants to be viewed — as a provider of emissions technology, not just the place for engine brakes.

Pennsylvania, the heart of the U.S. shale-gas boom and one of the biggest coal-producing states, is joining a carbon market.

California is asking a federal court to prevent President Donald Trump from stripping the state of its power to set limits on auto emissions of greenhouse gases that are stricter than those of the national government.

Daimler AG’s head of sales, facing off with environmentalists at a heated meeting in Berlin, said the company is investing billions of euros to transform its product range to reach emissions targets.

The Trump administration is seeking to abandon regulations designed to stop methane leaks from oil and gas wells, a move opposed not just by environmentalists but even some energy companies that worry that it will undermine the appeal of natural gas as climate-friendly fuel.

Steel could shed its reputation as a climate threat by using hydrogen instead of fossil fuels for as much as half of global output by 2050, according to BloombergNEF.

Amazon.com, Exxon Mobil Corp. and Volvo are among more than 700 companies being targeted in a campaign backed by a large group of investors advocating for greater transparency when it comes to environmental impact.