November 29, 2017, 11am PST
While forests sequester atmospheric carbon dioxide, wildfires release enormous amounts of greenhouse gases as they increase in frequency and intensity from climate change.
September 26, 2017, 5am PDT
A coalition of government bodies from eight states around the country has sued the Trump Administration, claiming that the U.S. DOT unlawfully suspended an emissions accounting rule.
September 16, 2017, 11am PDT
For almost two years, MUNI's diesel-powered buses in San Francisco have run entirely on renewable diesel fuel. Diesel-powered Amtrak trains running from San Jose to Sacramento could be next.
July 16, 2017, 1pm PDT
Caling the upcoming vote on AB 398, which has created strange political bedfellows, "the most important vote of your life," Gov. Jerry Brown cast the decision as choosing between "massive new regulations" and market-based mechanisms.
June 30, 2017, 12pm PDT
At the dawn of automated vehicle technology, humans, and Americans in particular, should recall the shortcomings of past utopian visions.
Eno Transportation Weekly
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.
March 7, 2017, 11am PST
On Tuesday, the Trump administration anticipates unraveling two signature Obama environmental regulations: fuel efficiency standards for model year 2022-2025 light-duty vehicles and beginning the undoing of the Clean Power Plan.
February 23, 2017, 10am PST
Some evidence suggests that apartments lead to more greenhouse gas emissions per capita than houses. Does this mean that suburbs pollute less than cities? Probably not.
February 11, 2017, 1pm PST
New York plans to drastically cut greenhouse gas emissions from public housing.
February 5, 2017, 7am PST
As the lawmakers in Washington, D.C. prepare to gut the U.S. Environmental Protection Agency, environmentalists got inspiring news from the country of Sweden.
January 20, 2017, 9am PST
The cuts mean that China is on target to meet its coal power generation limit for year 2020. But even with the cancellations, China will have surplus coal power resulting in underutilization of renewable power due to preference for coal by utilities.
November 18, 2016, 1pm PST
Methane wells are the dirty little secret of greenhouse gas emissions. A new study says they're a bigger problem than previously recognized in the state of Pennsylvania.
October 17, 2016, 10am PDT
An historic agreement reached by 170 global leaders in Kigali, Rwanda on October 15 to limit hydrofluorocarbons could have more of an impact on reducing climate change than the carbon emission agreement reached in Paris ten days earlier.
October 10, 2016, 12pm PDT
Germany has approved legislation calling for the end of the end of internal combustion engine by 2030. Whether the rest of Europe follows Germany's lead is to be determined.
October 8, 2016, 5am PDT
October 5 was an historic day, hailed President Obama, as nations responsible for emitting more than 55 percent of world carbon emissions have now signed the Paris climate agreement, the threshold needed for the accord to take effect in 30 days.
October 7, 2016, 8am PDT
Hydroelectric generation itself doesn’t produce greenhouse gases, but it does rely on the creation of reservoirs that release methane into the air.
September 14, 2016, 11am PDT
The year-long program will begin in November, laying a foundation for a national carbon market.
August 15, 2016, 5am PDT
A new policy from the Obama Administration asks government to calculate, and attempt to lower, their carbon emissions.
August 5, 2016, 10am PDT
2015 was basically the Michael Phelps of climate change, according to a new report.