FILE - In this Jan. 16, 2015, file photo, pumpjacks operate in Bakersfield, Calif. California regulators are citing climate change for the first time as they deny new permits for hydraulic fracturing, a process used to extract oil and gas from the ground. In denying 50 fracking permits this year, the state's oil and gas supervisor said he was using his discretion to protect public health, safety and environmental quality and to mitigate greenhouse gas emissions. (AP Photo/Jae C. Hong, File)
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