A family of widely used fluorinated chemicals may be contaminating local drinking water supplies, causing uncertain health effects and with little clarity over federal regulations. But some states are starting to step in. This week’s TipSheet unwinds the confusion over PFAS, with some backstory and plenty of resources for your local coverage.

The system of national parks in the United States contains hundreds of units, and many more stories near you ... if you just know where to start. This week’s TipSheet offers six key issues likely to come up at nearby parks, plus three dozen resources to help track down your local angle.

A running list of endangered rivers becomes an annual starting point for strong local coverage of critical water issues. This week’s TipSheet spotlights the latest additions to an inventory of trouble spots around the United States, plus key angles and issues for coverage, and a selection of top resources.

A journalism teaching project planned to cover local energy inequities. That was before Hurricane Irma swept Florida. In the end, inspired student reporters moved community leaders to action with human-centered, data-driven stories focused on solutions. Journalist and educator Cynthia Barnett shares the lessons in our latest EJ Academy column.

The EPA turns to friendly media to share its news, while limiting access to mainstream reporters. And the agency moves to “weaponize” transparency. Those stories, plus, a new way to map political influence on environmental policy, and key reports made public, in the latest WatchDog TipSheet.

The Society of Environmental Journalists has written EPA again, asking that its press shop stop distortions, ethically questionable treatment of journalists and appropriation of partisan news for official press releases. That, plus an update on the SEJ’s executive director search, in the latest President’s Report.

Health risks from unsafe drinking water afflict many, not only around the world, but in the United States too, especially the poor, ethnic minorities and those in remote rural areas. The latest Issue Backgrounder looks at this undercovered environmental justice story, and offers ideas and resources for how reporters can cover it.

While environmental themes were less prominent at the Sundance Film Festival this year, our correspondent JoAnn Valenti unearthed ecological messages from documentaries that explore the emergence of climate change refugees in the face of sea level rise, the escape from modernity into wilderness and the confrontation of environmental threats by young innovators.