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Original equipment manufacturers and engine suppliers have found a variety of ways to meet the challenges posed by the 2021 Phase 2 standards for greenhouse gas emissions and fuel efficiency.

Diesel can play a central role for the transportation sector as it moves toward a more sustainable future, a panel of experts said.

California will aim to halt sales of new gasoline-powered passenger cars and trucks by 2035, Gov. Gavin Newsom announced Sept. 23, a move he says would cut greenhouse gas emissions by 35% in the nation’s most populous state.

Walmart Inc. on Sept. 21 outlined its goals to achieve zero-emission operations, which include fully converting its fleet to electric trucks.

Walmart Inc. has cut 230 million metric tons of greenhouse gases out of its supply chain in the past three years, putting the world’s largest retailer on track to achieve its 2030 emissions goal.

Daimler AG will pay about $2.2 billion to settle U.S. diesel-emissions issues in the latest fallout from years of closer regulatory scrutiny on vehicle pollution.

There is mounting evidence that the U.S. Environmental Protection Agency’s low oxides of nitrogen proposed rule, already months behind schedule, will not be completed until after the November elections, according to trucking industry and environmental group sources.

Researchers have developed a promising yet surprisingly simple modification to diesel engines that could hold the key to reducing the complexity, maintenance, and size and weight of emission aftertreatment systems.

Volkswagen AG vehicle owners can sue the carmaker over diesel-emission manipulation anywhere in the European Union, the bloc’s top court said in its first ruling on the scandal.

Amazon.com Inc. will buy an aviation fuel blend made from used fats, oils and greases over the next 12 months as it searches for ways to reduce the greenhouse gas emissions of its growing air cargo operations.