Archive Tag: Air Quality

In late July, California reached an agreement with four automakers—Ford, Honda, Volkswagen and BMW—to continue increasing the fuel efficiency of their vehicle fleets by 3.7 percent annually from 2022 to 2026. The new agreement, which was negotiated by the California Air and Resource Board, presents a direct challenge to the Trump Administration’s attempts to weaken vehicle emission standards nationally. Following the announcement, UCLA faculty provided expert legal analysis on the agreement in several media stories.

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The LA County Chief Sustainability Office released a “Discussion Draft” of the first-ever county sustainability plan entitled “OurCounty” on Friday, April 5. The plan seeks to equitably address a range of sustainability challenges facing Los Angeles County including energy use, water sourcing, transportation infrastructure, workforce development, housing, and air quality. 

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Suzanne Paulson, UCLA professor of atmospheric sciences and director of the Center for Clean Air at UCLA, was quoted in a Los Angeles Magazine article explaining why air pollution is still a “thing” in the winter. According to Paulson, “When the ground surface is cold, it cools the air right above it, so then you have a situation where there’s cold air under warm air, and the two don’t naturally mix.” In summer, the air pollution is able to be diluted. The warm air near the ground takes the pollution with it and it isn’t trapped.

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