The California Air Resources Board has adopted a new emissions tracking program that would help regulators identify vehicles with excess smog-related and greenhouse gas emissions.
Seemingly acting out of character, the Environmental Protection Agency on Nov. 13 announced it will launch a rulemaking to further cut the emission of nitrogen oxide from diesel-powered heavy-duty trucks.
In Europe, the average amount of nitrogen oxides (NOx) present in exhaust emissions from modern diesel passenger cars is more than double the levels from modern trucks and buses.
The environmental challenge caused by booming global demand for cooling could be far greater than previously thought, according to a new report, by Dearman, a clean cold and power technology company.
WASHINGTON - The new ground-level ozone standards would have set rules for ground-level ozone emissions, but now the EPA will have to revisit creating a draft for these standards in 2013.