Green Car Congress

AUGUST 9, 2012

A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. Even though the CO 2 enhancements over background were comparable in the two years, about 25 ppm in 2002 and 35 ppm in 2010, the ?CO/?CO2 CO2 ratio for this flight track segment decreased from 24.5 Warneke, C.,

Los Angeles 285

Los Angeles Gasoline Ozone 2002 285

Green Car Congress

AUGUST 14, 2019

Emissions from transportation sources were relatively constant from 2002 through 2007, declined through 2013, then increased by 9.0 MMTCO 2 e (6%) from 2013 to 2017. Emissions from gasoline used in on-road vehicles are the main driver of that increase.

2017 230

2017 2016 Transportation Emissions 230

Green Car Congress

MAY 20, 2010

The program is geared to help small California-based fleets replace their older, polluting trucks with newer, cleaner models. Previously, the maximum amount of a voucher was $35,000; Trucks with 2002 and older engines may qualify for a newer truck.

California 186

California Diesel Emissions Cleaner 186

Green Car Congress

FEBRUARY 11, 2014

Many of the strategies employed to reduce GHG emissions will also work to meet the national ambient air quality standard for ozone in 2032. California’s vehicle GHG standards—authorized by AB 1493 (Pavley) in 2002, first approved in 2004, and extended in 2012—are delivering fuel consumption and CO 2 reductions.

Transportation 273

Transportation Emissions California Ozone 273