Interactive New York 's state assembly passed a limited ban on hydraulic fracturing . Also known as ` ` fracking , '' it 's a controversial method of extraction for natural gas . The EPA is investigating whether it contaminates ground water .
New York 's state assembly passed a limited ban on hydraulic fracturing . Also known as ` ` fracking , '' it 's a controversial method of extraction for natural gas . The EPA is investigating whether it contaminates ground water .