EPA is tightening a key air pollution standard for the first time in more than a decade, overturning a Trump-era decision to leave soot regulations unchanged. Direct and indirect sources of airborne ...

Electronic devices such as displays, sensors, and medical implants are well on their way to becoming flexible. But flexible power sources to operate them are only starting to catch up. Researchers now ...

The US Environmental Protection Agency has finalized a key update to the federal air quality standard for fine soot – a step toward reducing deadly air pollution that’s been over a decade in the ...

The decision of just how much to tighten the standards now lies in the hands of EPA Administrator Michael Regan, who plans to move forward with a proposed rule by this summer. The decision has been ...

NASA scientists say soot, mostly from diesel engines, is causing as much as a quarter of all observed global warming by reducing the ability of snow and ice to reflect sunlight. Their findings on how ...

Sustainable aviation fuel (SAF), which is made from waste oils and other biomass by various chemical routes, is attracting a lot of attention and investment because of its lower net carbon emissions.

Pa'ia Elementary School will remain closed Monday, Sept. 29, as post-fire cleaning continues and soot still impacts the ...