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The White House is rejecting a bid from domestic and foreign automakers to restart talks with California over vehicle emissions regulations.

Although large gains have been made in cleaning up new diesel engines, nearly two-thirds of all commercial trucks don’t meet the latest emissions standards. As of 2017, some 36% of all commercial trucks (Classes 3-8) in the United States rely on the newest generation of diesel engines — a 6% increase over 2016, according to the Diesel Technology Forum, which cited the latest data.

Royal Dutch Shell Plc’s position on climate change is misaligned with about half of the trade associations it’s a part of, and the company says its disagreement with one is so severe that it will let its membership lapse next year.

Carbon emissions from fossil-fuel use hit a record last year after energy demand grew at its fastest pace in a decade, reflecting higher oil consumption in the U.S. and more coal burning in China and India.

Volkswagen AG and its former CEO were sued by the U.S. Securities and Exchange Commission over claims they failed to disclose to investors that diesel vehicles violated emissions standards, the latest twist in a software cheating scandal that already has cost the company more than $30 billion.

Fiat Chrysler Automobiles NV recalled almost 863,000 vehicles that violate U.S. emissions standards, another knock for the company after it agreed to make amends for building different trucks and SUVs that polluted more than legally allowed.

Democrats’ Green New Deal manifesto aimed at revolutionizing the country’s transportation system by drastically reducing fuel emissions was described as a fantasy by the top Republican transportation policymaker in the U.S. House of Representatives.

Ford Motor Co. revealed its emission testing could be flawed and took pains to soothe anxiety among investors in an industry wracked by years of pollution scandals.

California environmental regulators are aggressively moving forward with plans to require significant reductions in nitrogen oxides and particulate matter emissions for heavy trucks, improvements in “real time” on-board diagnostics, and lengthening the “useful life,” durability and warranty periods for heavy trucks.