California Gov. Jerry Brown shows a paper during a workshop organized by Vatican on the climate change, at the Casina Pio IV, at the Vatican, Saturday Nov.4, 2017. Brown called climate change an existential threat and said he's going to announce in Bonn that more signatories will be joining the "Under2 coalition" a global community committed to decarbonization and supporting the Paris Agreement's climate goal of keeping the rise in global average temperatures below 2 degrees centigrade.
California Gov. Jerry Brown shows a paper during a workshop organized by Vatican on the climate change, at the Casina Pio IV, at the Vatican, Saturday Nov.4, 2017. Brown called climate change an existential threat and said he's going to announce in Bonn that more signatories will be joining the "Under2 coalition" a global community committed to decarbonization and supporting the Paris Agreement's climate goal of keeping the rise in global average temperatures below 2 degrees centigrade. Alessandra Tarantino AP Photo
California Gov. Jerry Brown shows a paper during a workshop organized by Vatican on the climate change, at the Casina Pio IV, at the Vatican, Saturday Nov.4, 2017. Brown called climate change an existential threat and said he's going to announce in Bonn that more signatories will be joining the "Under2 coalition" a global community committed to decarbonization and supporting the Paris Agreement's climate goal of keeping the rise in global average temperatures below 2 degrees centigrade. Alessandra Tarantino AP Photo

California to collaborate with EU, China on carbon markets

November 07, 2017 09:06 PM

UPDATED November 07, 2017 09:07 PM

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