DENVER — Your next vehicle emissions test will cost you more. Air Care Colorado is increasing fees by $10 from $25 to $35. It ...

This story was originally published by Capital & Main. A unique aerial measurement campaign found that emission inventories ...

Abstract: Emission testing is the process of measuring the pollutants being let out by machines that use combustion as the main deriving source of power. Emission testing has been mandated across the ...

There's legislation to eliminate emissions testing in Maryland, but it could put the state in violation of federal law.

Madison is proving electric buses can run through cold winters, providing a blueprint for zero-emissions transit in other frigid locales.

Earlier this month, the EPA repealed a key finding that greenhouse gases harm human health and can be regulated under the ...

During 2025, S&SE deployed next-generation regenerative thermal oxidizer (RTO) and direct-fired thermal oxidizer (DFTO) systems achieving greater than 99% destruction efficiency of VOCs and hazardous ...

The EPA, under the Trump administration, has eliminated the credit for the "almost universally hated" auto start-stop feature.

The EPA’s announced rollback of emissions standards will likely mean fewer new vehicles will have engine stop-start systems in the near future.

WASHINGTON – The Trump administration announced on Feb 12 the repeal of a scientific finding that greenhouse gas emissions endanger human health and the elimination of federal tailpipe emissions ...

China’s carbon dioxide (CO2) emissions fell by 1% in the final quarter of 2025, likely securing a decline of 0.3% for the full year as a whole. This extends a “flat or falling” trend in China’s CO2 ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Kenneth J. Davis, Penn State (THE CONVERSATION) Earth’s atmosphere contains carbon ...