NOX

July 20, 2016, 8am PDT
Forty so-called Tier 4 locomotives, a U.S. Environmental Protection Agency designation requiring a dramatic reduction in particulate and nitrogen oxide emissions, will be joining Metrolink's fleet covering 512 track miles in six counties.
Los Angeles Times
May 9, 2016, 7am PDT
A Planetizen blog post by Casey Brazeal asks, "When will the trucking industry electrify?" Three truck manufacturers and electric truck builder BYD Motors are now in competition thanks to a $23.6 million state grant to the South Coast Air District.
Fleet Owner
March 22, 2016, 10am PDT
The South Coast Air Quality Management District is in the news again, this time for going too easy on the region's big polluters—just what staff had warned would happen before the board fired its well-respected executive director.
Los Angeles Times
February 4, 2016, 10am PST
Volkswagen has already submitted its recall plan for its 2-liter diesel engines—it was rejected by both the EPA and California Air Resources Board. It also needed to submit a recall plan for 3-liter diesel engines to CARB by Feb. 2, which it did.
Bloomberg Business
January 7, 2016, 7am PST
It's easy to focus on the sensational headlines based on the fraud committed by Volkswagen, but doing so masks the deadly and ongoing problems of diesel emissions plaguing the world's densely populated cities.
The New York Times
December 29, 2015, 7am PST
Unusually mild and dry weather in much of Italy has worsened air quality so much that city governments are acting to reduce emissions from one of the chief sources of air pollution by enacting odd-even license restrictions on driving.
The New York Times - Europe
December 21, 2015, 2pm PST
It took an act of the Supreme Court for India to address the incredibly unhealthy levels of particulate matter in New Delhi. New rules are aimed at diesel cars, SUVs, and taxis. In Beijing, pollution triggered a red alert for only the second time.
The New York Times - Asia Pacific
October 15, 2015, 11am PDT
Credit EPA emission regulations for the decisions by utilities to close the aging plants. Michigan receives half its power from coal—the most polluting fossil fuel. The new Clean Power Plan rule will cause more remaining plants to close in time.
Power Engineering
October 2, 2015, 10am PDT
The EPA chose to reduce the current standard of 75 parts per billion, unchanged since 2008, by 5 ppb. Public health and environmental groups insist that a safe standard would be 60 ppb, while businesses point to the high costs to comply with 70 ppb.
The Wall Street Journal
July 1, 2015, 8am PDT
The answer depends on location, according to previous studies on EVs. The study from NBER evaluated both gas and electric-powered vehicles to determine their effect on the environment. A surprising recommendation is a new road funding option.
CityLab
December 14, 2014, 11am PST
Arguably just as important than the sales of new vehicles, e.g., hybrids and EVs, are the consequences of not buying new cars.
Scientific American
May 1, 2014, 5am PDT
In a huge and perhaps unexpected win for the EPA, the Supreme Court on April 29 reversed an appellate court panel ruling that had rejected their attempt to regulate interstate air pollution caused by about 1,000 coal-fired power plants in 28 states.
The Wall Street Journal - Politics and Policy
March 5, 2014, 10am PST
In EPA’s leadership blog, Administrator Gina McCarthy announces the agency's new standards to reduce the sulfur content in gasoline by 60% in 2017 and new Tier 3 emission standards for cars and light trucks to reduce criteria and toxic air pollutants
EPA Connect
August 25, 2012, 9am PDT
For the second time, a court has thrown out EPA efforts to address pollution from power plants in 'clean-air' states that cause pollution downwind. This time, the Cross-State Air Pollution Rule was the victim.
The New York Times - Environment