Babies born to moms who lived near fracking wells faced host of health risks, study suggests

The researchers compared the birth weights of babies born to mothers living within 1, 2 or 3 kilometers of fracking wells, both before and after the wells were active. In a bid to capture health influences specifically related to well proximity, the authors compared the birth weights of siblings born at different distances to wells — both close enough to be exposed to fracking in utero, and too far away.