Archive Tag: Greenhouse Gases

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Sustainable LA

UCLA’s Suzanne Paulson explains why we have poor air quality in the winter

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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Sustainable LA

L.A. County receives a C from UCLA on energy and air quality in the 2017 Sustainable LA Environmental Report Card

The 2017 Energy and Air Quality report card examined 21 indicators in five categories to assess energy use, greenhouse gas emissions and air quality in Los Angeles County.
UCLA

The UCLA Sustainable LA Grand Challenge released the 2017 Sustainable LA Environmental Report Card on Energy and Air Quality for Los Angeles County on April 27, 2017. After analyzing roughly a decade’s worth of key energy and environmental data, UCLA researchers gave a C grade for energy and air quality within Los Angeles County in the latest environmental report card. Read more →

Sustainable LA

State and Trump are set to collide over electric cars and gas guzzlers

Downtown Los Angeles’ tallest buildings rise above a blanket of smog in October 1973.
(Fitzgerald Whitney / Los Angeles Times)

As Donald Trump’s Environmental Protection Agency debates whether or not to loosen federal regulations on auto emissions, the State of California is taking steps to escalate its own targets. On Friday, March 24, state regulators voted to increase pollution-reduction requirements for automakers selling cars in the state and expand the Read more →

Sustainable LA

How we know there’s climate change, and humans to blame

Tripati, an associate professor at UCLA’s Department of Earth, Planetary, and Space Sciences, and Institute of the Environment and Sustainability, has spent her career putting climate data into context. Her lab uses chemistry to reconstruct the climate norms of the distant past—norms that make today’s atmosphere look a lot more alarming.
Pexels

In an interview with Popular Science, Aradhna Tripati, an associate professor at UCLA’s Department of Earth, Planetary, and Space Sciences and Institute of the Environment and Sustainability, employs a series of humorous analogies to articulate her conviction that climate change is real. “It’s like you’re adding drops of poison to a Read more →

Sustainable LA

California legislators prepare for legal battles as they oppose federal environmental deregulation

A truck is tested to see if it meets emissions standards at a California Air Resources Board facility in Los Angeles.
(Allen J. Schaben / Los Angeles Times)

California has always had some of the strictest environmental laws in the country, and legislators hope to keep these policies intact in the face of decreased federal funding and the loosening of environmental regulation in Washington. However, this process will be difficult as it challenges the relationship between states and the federal Read more →

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