California is the third-largest oil producing state in the country. To produce oil, companies deal with massive amounts of water. They need it for hydraulic fracturing, and they produce a lot from underground. (More in our related story)


Graphics designed by Penn State Public Media/WPSU
Graphics designed by Penn State Public Media/WPSU

Author

Lauren Sommer

Lauren is a radio reporter covering environment, water, and energy for KQED Science. As part of her day job, she has scaled Sierra Nevada peaks, run from charging elephant seals, and desperately tried to get her sea legs - all in pursuit of good radio. Her work has appeared on Marketplace, Living on Earth, and NPR's Morning Edition and All Things Considered. You can find her on Twitter at @lesommer.

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