Tighter EPA emissions rules for big trucks don’t mandate EVs

Freightliner eCascadia electric semi-truckThe EPA last week announced stricter emissions standards for heavy-duty commercial vehicles, such as trucks and buses, for model years 2027 to 2032. Like the new emissions standards for passenger cars recently confirmed, these rules do not mandate EVs, but do set much tougher emissions targets that will likely lead to more EV sales. The exact...

DOE rule may encourage more plug-in hybrids, fewer EVs

2023 Kia Niro plug-in hybridThe U.S. Department of Energy (DOE) unveiled a revised rule that would effectively give automakers more flexibility with pending EPA rules for model years 2027 to 2032—and more time to ramp up EV sales compared to an earlier proposal. The final rule for Petroleum-Equivalent Fuel Economy Calculation released late Tuesday softens what had been...

Brake-dust particles’ electric charge might help curb emissions

2024 Lucid Air SapphireUp to 80% of brake-dust particles have an electric charge, which could serve as a means of controlling brake dust and improving air quality, according to a new study from the University of California, Irvine (via Green Car Congress). The study, which was funded by fees paid by Volkswagen as part of its 2016 diesel-emissions cheating settlement...

EPA may allow weaker emissions rules, slower EV rollout

2023 Chevrolet Bolt EVThe Biden administration may throttle back strict emissions rules in order to give automakers more time to ramp up EV sales, the New York Times reported earlier this week. Last April, the EPA unveiled proposed tailpipe emissions rules for model years 2027 to 2032. The agency estimated at the time that this would lead to 67% EV sales by 2032, not...

Choosing leather lowers EV carbon footprint, suppliers suggest

2022 Lucid Air Grand TouringSustainability concerns are leading some automakers to switch from leather upholstery to synthetic alternatives. So a group of leather suppliers are making their case. The trade group, called One 4 Leather, claims that leather upholstery made from cow hides has a lower carbon footprint than synthetic materials. That's in part because, the argument...

Cummins faces $1.7B fine for diesel Ram pickup emissions cheating

2019 Ram 2500 Heavy DutyEngine manufacturer Cummins will pay a $1.67 billion fine for emissions cheating with diesel engines in Ram pickup trucks. The fine settles a case brought by the U.S. Justice Department and the State of California claiming Cummins violated the Clean Air Act by installing so-called defeat devices that allowed its Diesel engines to cheat emissions...

EPA: Hybrids and EVs helped offset more polluting trucks and SUVs

2021 Toyota RAV4 HybridIncreased production of hybrids and EVs has helped offset the shift toward larger vehicles in the new-car market, according to a comprehensive annual update from the EPA. The 2023 EPA Automotive Trends Report, released last week, showed that automakers significantly ramped up hybrid and EV sales from model years 2017 to 2022. During that time...

House votes to block emissions rules with misconception of EV mandate

U.S. Capitol BuildingThe House of Representatives on Wednesday passed a bill aiming to block the EPA from finalizing stricter emissions rules for model years 2027-2032. The bill, H.R. 4468, or the "Choice in Automobile Retail Sales Act of 2023," seeks to prohibit the EPA from "finalizing, implementing, or enforcing a proposed rule with respect to emissions from...

Polestar 4 SUV has a lower carbon footprint than Polestar 2 hatchback?

2025 Polestar 4Polestar claims its upcoming Polestar 4 SUV coupe will have the lowest carbon footprint of any of its models to date. Cars tend to be more efficient than SUVs, and smaller vehicles use less material, helping to contribute to a lower carbon footprint. But Polestar says the 4, which is set to arrive in the U.S. in the latter half of 2024, will have...