U.S. automakers faced sweeping changes as President Donald Trump rolled out measures favoring gasoline-powered vehicles over electric ones.

This policy brief reviews the European Commission’s December 2025 draft amendment to the CO₂ standards for cars and vans, evaluating its potential impact for electric vehicle uptake and overall CO₂ ...

Europe’s proposal to end the EV monopoly on new car sales was portrayed as an auto industry win, but as the dust settles, it ...

This briefing provides an overview of the carbon dioxide (CO2) emission levels of new passenger cars in the EU for 2024 based ...

The Humboldt County Board of Supervisors unanimously adopted a long-awaited plan aimed at cutting fossil fuel emissions ...

Decoupling studies overwhelmingly focus on annual flows of emissions rather than the cumulative stock already in the atmosphere. Climate damage is driven by accumulation, not yearly changes. Reducing ...

Join us as we dive into the fascinating world of homemade vehicles with a CO2-powered wooden racer, a match head rocket car crafted from a Coca-Cola can, and a powerful dual-cartridge truck. Watch as ...

CONCORD — Auto dealers and the state’s chapter of the Sierra Club were both in opposition to the state asking to opt out of federal vehicle emissions testing at a hearing Monday in Concord. While the ...

New Hampshire’s plan to stop testing vehicle emissions in two months as part of an end to annual car inspections is facing another objection in the form of a threatened lawsuit that says the move ...

Here’s what you’ll learn when you read this story. Mazda’s latest concept car, the Vision X-Coupe, features a rotary engine that’s designed to run on biofuel. The fuel is produced by refining ...

But there are signs that greenhouse gas pollution in China might be slowing, according to a new analysis. By Brad Plumer Reporting from Belém, Brazil Global fossil fuel emissions are on track to soar ...

The projected rise in CO2 emissions in 2025 is driven by growth in coal, like the coal-fired plant pictured, as well as oil and gas, according to the 2025 Global Carbon Budget Report. Global carbon ...