In this May 19, 2015 file photo, California Gov. Jerry Brown, center, discusses the non-binding climate change agreement he is about to sign with international leaders from various states and provinces during a signing ceremony in Sacramento, Calif.
In this May 19, 2015 file photo, California Gov. Jerry Brown, center, discusses the non-binding climate change agreement he is about to sign with international leaders from various states and provinces during a signing ceremony in Sacramento, Calif. Rich Pedroncelli AP
In this May 19, 2015 file photo, California Gov. Jerry Brown, center, discusses the non-binding climate change agreement he is about to sign with international leaders from various states and provinces during a signing ceremony in Sacramento, Calif. Rich Pedroncelli AP