November 12, 2015, 5am PST
With a growing reputation for heavy local pollution, the city of Madrid will impose reduced speed limits and driving restrictions in its central core. On bad days, transit will be free to ride.
November 11, 2015, 10am PST
More and more evidence has emerged in recent years about the many benefits of trees in urban environments. Every now and then, however, a study finds evidence that tress might not always be as benevolent as they seem.
October 23, 2015, 11am PDT
In a Bay Area first, new home construction in most of the region will be banned from having these heating devices installed as the result of a rule adopted unanimously by the Bay Area Air Quality Management District on Oct. 21.
September 28, 2015, 1pm PDT
We call them Open Streets events. In French it's Journée Sans Voiture. On September 27, the world saw a car-free Paris.
September 27, 2015, 11am PDT
A quick look at a real-time map of air pollution around the world shows how much healthier the air in the United States is than in China.
September 23, 2015, 1pm PDT
A coalition in Los Angeles County wants to reframe the debate about closing the gap in the 710 Freeway, asking Metro to look "beyond the 710"—and toward a multi-pronged, multimodal approach to transportation problems in the region.
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.
June 8, 2015, 7am PDT
A new report from the Congressional Budget Office places the spotlight on the trucking industry in terms of the social, health ,and environmental costs it imposes on society but does not pay for, i.e., externalities.
City Observatory City Commentary
June 8, 2015, 5am PDT
Contrary to popular belief, Beijing's air pollution is not nearly the worst in the world. The air of Delhi, India, is twice as polluted. For expats, this disaster raises important questions: is it ethical to live, and raise children, in India?
June 2, 2015, 5am PDT
According to an ACEEE report, Boston currently leads the way, with New York, Washington, DC, and San Francisco not far behind. Los Angeles, Washington, and Chicago show the most improvement since 2013.
American Council for an Energy-Efficient Economy
May 31, 2015, 9am PDT
The most dangerous air pollution is not smog and is barely known by the public, writes Bill Adams, editor of UrbDeZine. Line-source particulate matter air pollution could change the way the public thinks about road projects and gas powered cars.
May 20, 2015, 5am PDT
An IMF working paper determined that global energy subsidies totaled $5.3 trillion this year, the worst offenders are China and the U.S. Placing a price on these subsidies, which include air pollution and carbon emissions, may be key to mitigation.
March 19, 2015, 2pm PDT
A major new study estimates that sprawl costs the U.S. economy more than a trillion dollars annually, and results, in part, from planning and market distortions. Smart policy reforms can result in more efficient and equitable development.
March 9, 2015, 7am PDT
Too often we report on new studies showing how air pollution worsens public health, often causing premature death. For a change, here's a study showing how efforts to improve air quality in Southern California have boosted public health in children.
March 1, 2015, 11am PST
What they may lack in peace and quiet, crowded cities more than make up for by requiring residents to live smaller. Tangible environmental benefits follow.
The Washington Post - Wonkblog
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.
October 28, 2014, 7am PDT
Cycling has positive impacts both for cyclists and non-cyclists alike, helping to reduce pollution and congestion and improving health and economic factors with just two wheels.
October 24, 2014, 12pm PDT
New research from the American Heart Association measures sudden cardiac death and proximity to major roadways, showing that cardiac risks posed by environmental exposure have been under-appreciated. The next step is to find the specific cause.
October 8, 2014, 11am PDT
The improvement in air quality comes from reductions in toxic emissions from autos, trucks, and ships. Enjoying the cleaner air were tens of thousands of Angelenos riding on miles of streets closed to auto traffic for the 10th CicLAvia event.
August 25, 2014, 2pm PDT
Phys.org shares the details of a new report by the U.S. Environmental Protection Agency about the air quality benefits of the Clean Air Act for cities around the county.