Green Car Congress

AUGUST 21, 2009

Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climate change problem and would also contribute to public health and protect crop yields, according to an essay in the September/October issue of Foreign Affairs. Besides a danger to breathe, ozone lowers crop yields.

Climate Change 262

Climate Change Ozone Climate Carbon 262

Green Car Congress

AUGUST 9, 2012

Between 2002 and 2010 alone, the concentration of VOCs dropped by half, according to a new study by NOAA scientists and colleagues, published in the AGU’s Journal of Geophysical Research. The reason is simple: cars are getting cleaner. The difference was amazing. —lead author Carsten Warneke, Ph.D., —Warneke et al.

Los Angeles 285

Los Angeles Gasoline Ozone 2002 285

Green Car Congress

JANUARY 27, 2015

The first study to conduct a comprehensive evaluation of lifetime exposure to new technology diesel exhaust (NTDE)—i.e., The study exposed laboratory rats 80 hours a week, for up to 30 months, to emissions from a heavy-duty diesel engine meeting 2007 US EPA standards using new filters and other control technology.

Exhaust 150

Exhaust Diesel Engine 2007 150

Green Car Congress

MAY 16, 2011

The data were gathered during the CalNex 2010 field study organized by ARB and the National Oceanic and Atmospheric Administration (NOAA). The California data were compared to ship-plume measurements made by NOAA near the Port of Houston, Texas in 2006.

Pollution 186

Pollution California Clean Cleaning 186

Green Car Congress

MARCH 18, 2019

A longer service life reduces the fleet’s turnover rate to cleaner, lower-emitting engines, therefore increasing future-year emission estimates. Since real-world workboat engines are operating with longer lifespans, the actual nitrogen oxide emission reductions are 52 percent weaker than predicted in EPA’s 2008 Rule calculations.

Mariner 223

Mariner EPA Emissions Engine 223