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Mayor de Blasio announces new greenhouse gas emissions cuts at Vatican summit

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VATICAN CITY — Governors from around the world are in Vatican City Tuesday attending a summit aimed at keeping up the pressure on national leaders ahead of climate talks in Paris later this year.

New York City Mayor Bill de Blasio announced new greenhouse gas emissions targets for his city. He says New York is committed to reducing its emissions by 40 percent by 2030.

California Gov. Jerry Brown in a keynote address denounced global warming deniers who he says are "bamboozling" the public with propaganda.