Green Car Congress

JANUARY 23, 2020

Despite reports that global emissions of the potent greenhouse gas, HFC-23, were almost eliminated in 2017, an international team of scientists, led by the University of Bristol, has found atmospheric levels growing at record values. As a result, they reported that they had almost completely eliminated HFC-23 emissions by 2017.

Emissions 199

Emissions Ozone India 2017 199

Green Car Congress

JULY 17, 2017

Geiger and Alberto Salvo, an associate professor of economics at the National University of Singapore, led the study—their second with São Paulo big data. At the same time, nitric oxide and carbon monoxide concentrations tended to go up. At the same time, nitric oxide and carbon monoxide concentrations tended to go up.

Gasoline 150

Gasoline Singapore Brazil Ozone 150

Cars That Think

DECEMBER 19, 2021

Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Eventually, they’ll add equipment to spray tiny aerosol particles of calcium carbonate, the compound found in limestone, blackboard chalk, and Tums antacids.

Ozone 119

Ozone Solar Climate Change Climate 119

Green Car Congress

JUNE 27, 2017

According to a new study led by a team at Duke University, airborne particulate matter and dust are cutting solar photovoltaic energy output by more than 25% in certain parts of the world, with roughly equal contributions from ambient PM and PM deposited on photovoltaic surfaces. Credit: ACS, Bergin et al. Click to enlarge. 7b00197.

Solar 218

Solar Energy Global Production 218

Green Car Congress

SEPTEMBER 25, 2016

These were shown to be ozone-depleting, however, and were targeted for phasing out under the 1987 Montreal Protocol. However, HFC-134a, while having zero ozone-depletion potential, has a very high global warming potential—more than 1,500 times as much warming as an equivalent amount of CO 2. Cambridge University Press.

China 150

China Ozone Chinese United States 150

Green Car Congress

OCTOBER 30, 2017

Based on their findings in a new study, researchers from the University of Washington and the University of Minnesota suggest that modifying urban form—as a means of affecting motor vehicle usage—may be a strategy to mitigate urban air pollution. Marshall (2017) “Does Urban Form Affect Urban NO2? —Bechle et al.

Pollution 231

Pollution New Zealand Minnesota Ozone 231

Green Car Congress

JUNE 1, 2017

Traffic contributes more to NO x emissions in Europe than previously thought, according to a new study by a team at the University of Innsbruck. We continuously measure the concentration of carbon dioxide, nitrogen oxide and volatile organic compounds at our urban observatory in Innsbruck. We record 36,000 data points per hour.

Europe 150

Europe Diesel Emissions Pollution 150