We look at how a new Supreme Court ruling awards a major victory to polluters and land developers. In a 5-4 decision last week, the justices sharply limited the authority of the Environmental Protection Agency to protect and preserve wetlands under the Clean Water Act. The ruling ends protections for about half of all the wetlands in the contiguous United States, jeopardizing access to safe drinking water for millions. “That just defies science, physics, commonsense,” says Earthjustice’s Sam Sankar, who urges Congress to take action to once again protect the country’s critical water resources.