Since 2005, according to industry and state data, at least 137,000 fracking wells have been drilled or permitted in more than 20 states, but the scale of fracking’s impact on our environment can be difficult to grasp. This report quantifies some of the key environmental and public health-related impacts triggered by fracking during the technology’s decade-long spread across the country. To protect the public and our environment, states should take action to ban fracking, or, failing that, to ensure that oil and gas companies are held to the highest level of environmental performance, transparency and accountability.