May 17, 2017, 11am PDT
While the study stems from research that found Volkswagen diesel cars had used 'defeat devices' to pass emissions tests, the new study points to inadequacies in the tests themselves, resulting in 50 percent higher pollution than testing permits.
The International Council on Clean Transportation
September 25, 2015, 1pm PDT
Amidst the bad publicity coming from Volkswagen's engineered fraud on diesel emissions testing comes good news from California Air Resources Board: The cancer risk from airborne toxins, most of which come from burning diesel fuel, dropped 76 percent.
California Air Resources Board
December 16, 2014, 12pm PST
Parisian clean air politics turn out to be something of a class issue, even for a socialist mayor. The plans are seen as penalizing low income Parisians while benefiting elitist city dwellers who dislike traffic, overshadowing public health benefits.
March 24, 2014, 6am PDT
Thanks to the 2010 federal requirement of ultra-low sulfur diesel fuel and new Tier 4 emissions standards by the EPA, particulate emissions from non-road diesel engines, including agricultural and construction equipment, have been reduced by 99%.
Environmental Health News
October 27, 2013, 1pm PDT
Nonunion truckers at the Port of Oakland are on a work-stoppage over both work rules and compliance with a 2008 CARB diesel regulation requiring drayage trucks to be 2007 or newer. They want a year extension and more funding to assist in compliance.
April 29, 2013, 11am PDT
Just as the power industry turned toward lower priced natural gas and away from dirtier coal, there are signs that trucks and trains are looking to lower priced liquefied natural gas (LNG) to replace diesel-powered vehicles, but there are challenges.
The New York Times - Energy & Environment
December 11, 2008, 10am PST
At a crucial two-day meeting, the California Air Resources Board may adopt, reject or modify two separate, landmark, controversial plans - one on climate change, the other on diesel emissions from trucks and buses.