US regulators on Tuesday finalized regulations for "powered lift" vehicles, opening the door for commercial air taxis. The rules apply to aircraft which "have the characteristics of both airplanes and ...

US regulators on Tuesday finalized regulations for "powered lift" vehicles, opening the door for commercial air taxis. The ...

SACRAMENTO, Calif. (AP) — California air regulators voted to approve changes to a key climate program aimed at reducing planet-warming emissions that has a wide swath of critics and could ...

California regulators have approved plans to strengthen the state’s carbon reduction standards ... involves amendments to California’s Low Carbon Fuel Standard and serves to decrease petroleum ...

California air regulators will vote Friday on changes to a key climate program aimed at reducing planet-warming emissions from transportation fuels that has a wide swath of critics — from ...

Poor indoor air quality can have a negative impact on your health, and the easiest way to improve your home’s air is with the help of the best air purifiers. These units typically use HEPA ...