Daniel Kammen

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.
San Francisco Chronicle
January 16, 2014, 6am PST
For urbanists who have reduced their carbon footprints by driving less and living more densely in smaller homes, researchers from UC Berkeley have some bad news. Your reduced emissions are canceled out by those in the suburbs ringing your city.
Los Angeles Times - Science Now