November 30, 2017, 2pm PST
Ozone pollution is worsening in five counties in Southern California, and the Air Quality Management District doesn't know why.
April 24, 2017, 9am PDT
With the adoption of the "Spare the Air - Cool the Climate" program, the Bay Area's air quality regulatory agency has broadened its mission to make reduction of greenhouse gases a paramount goal, along with protecting public health.
April 21, 2017, 12pm PDT
The city of San Francisco hit its greenhouse gas emissions reductions targets two years ahead of schedule. The city has reduced greenhouse gas emissions by 28 percent since 1990—the economy grew by 78 percent in that same time period.
September 1, 2016, 10am PDT
As difficult as it was for the legislature to pass SB 32 on Aug. 24, reducing emissions 40 percent below 1990 levels by 2030 will prove far more challenging. Brad Plumer, senior editor of Vox, explains the bill and what it will take to meet the goal.
December 15, 2015, 7am PST
It's been a month of historic announcements in the effort to combat climate change. But a vote today in San Diego might set the standard for ambitious, enforceable action.
September 18, 2014, 11am PDT
A study examines the impact of a worldwide shift away from automobile infrastructure and finds a staggering amount of potential benefits by the year 2050.
October 26, 2013, 5am PDT
Despite federal ‘optimism,’ a new Environment Canada report indicates the country is not on pace to meet 2020 Copenhagen Accord emissions targets. Experts point to weak federal environmental policies, most notably in the oil and gas sector.
March 20, 2013, 11am PDT
Emissions of CO2 in the U.S. have fallen almost 13 percent since 2007 - "perhaps the biggest decline among industrial countries." Rather than the result of an enlightened policy shift, the drop has resulted from market forces, says Eduardo Porter.