Deep beneath the east coast of the United States lies trillions of cubic metres of natural gas, but as Dateline reports on Sunday, far from meaning boom time, it's splitting local communities.
Their dispute is over the hydraulic fracking, or fracturing, used to split the rock and release the gas, which protesters claim can also release chemicals into the water supply.
Nick Lazaredes meets people in Pennsylvania who say they no longer have fresh water on tap… some have faced illness and even been forced to leave their homes.
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And now the people of New York are up in arms too over plans for fracking in the Catskill Mountains, which feed the city's water supply.
The protest movement is growing, but why are officials so keen to refute the claims and allow fracking to take place?
Find out more and watch the story now on the Dateline website.
