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“San Francisco prides itself on being one of the most sustainable cities in the U.S.,” the city’s director of the Department of Environment. The city brought its experience with innovative programs to the C40 Mayors Summit in Sao Paulo last month, among them, a plan to get to zero waste by 2020. The city already recycles or composts 77 percent of its waste, the highest rate of any major U.S. City.

“The impact of climate change sees no boundaries,” Edward Yao, Hong Kong’s environment secretary, told the C40 News team last month during the Summit in Sao Paulo. Hong Kong is taking a “multi-pronged” approach to reaching its energy goals, including encouraging behavioral changes for its residents.

New York City Mayor Michael R. Bloomberg, Chair of the C40, announced yesterday the addition of 70 electric vehicles (EVs) to the City’s fleet, making it the largest municipal clean-air vehicle fleet in the US. To spur the take-up of EVs by New York residents, the City also launched the Drive Electric NYC website, to provide facts about EVs, including a map of charging stations located throughout the city.

In this interview with the C40 News team during the Sao Paulo Summit, Dr. Rohit Aggarwala discusses a new focus at the C40 on data and accountability. Watch the full video with Dr. Aggarwala, special advisor to C40 Chair New York City Mayor Michael R. Bloomberg.

Last Thursday, Department of Energy Secretary Steven Chu announced the initial Partners of the Better Buildings Challenge at the Clinton Global Initiative America conference in Chicago, a C40 City. This challenge is part of the White House-led Better Buildings Initiative to increase private sector investment in building energy efficiency and reduce energy use in buildings by 20 percent by 2020 to save money, create jobs, and improve our environment. The focus and potential of the Better Buildings Challenge is to spur job creation in the construction and building industries.