Green Car Congress

MARCH 17, 2020

They found that reductions in ground ozone during this 35-year period resulted in $600 million in increased production annually by the early 2010s. Davis and his colleagues chose to concentrate on perennials because of the long-term investment they represent and the fact that California is a major supplier of this type of produce.

Ozone 186

Ozone Davis San Diego Pollution 186

Green Car Congress

OCTOBER 2, 2011

A NASA-led study has documented an unprecedented depletion of Earth’s protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low temperatures in the stratosphere. The same ozone-loss processes occur each winter in the Arctic.

Ozone 186

Ozone 2011 Aura Davis 186

Green Car Congress

JUNE 13, 2009

University of California, Davis researchers will receive $2.8 million in new grants to study the use and impacts of escaped nitrogen from agricultural production. Nitrogen-based fertilizers help California farmers produce more than 400 agricultural commodities—vegetables, fruits, meats and dairy products—worth $36 billion a year.

Davis 240

Davis Escape Ozone California 240

Green Car Congress

SEPTEMBER 1, 2012

Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science. —Cappa et al. Earlier post.).

Climate 261

Climate Climate Change Carbon Boston 261

Green Car Congress

OCTOBER 23, 2012

The new findings contradict previous research focused on the LA Basin which concluded that gasoline vehicles contributed more to the production of secondary organic aerosols (SOA) than exhaust from diesel vehicles. Dallmann, Laura Davis, Shang Liu, Douglas A. Earlier post.). Gasoline or diesel? In March, Bahreini et al. Earlier post.).

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Diesel Los Angeles Exhaust Gasoline 281