​It’s a blockbuster — literally. Homes by the tens of thousands are at risk of being lost to coastal flooding in coming years, communities broken up thanks to climate change. This week’s TipSheet tells you how to find the data to tell the story and provides examples of model reporting.

It’s summer smog season, with all its unpleasant environmental and health impacts. But if you’re reporting on this perpetual problem, you may not be able to rely on the EPA to help you figure out where it is worst. This week’s TipSheet explains, then helps get you started on your own smog coverage.

The Trump administration unsuccessfully tried to hold back a flood of information on how sea level rise may inundate the nation’s park system. But now a new report yields wave after wave of stories, depending on your coverage area. TipSheet explains how to make smart use of the just-released document.

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 estuaries that proliferate across the United States can be hard to define — and protect. But their role in a healthy environment makes them a crucial focus of good reporting. The latest Issue Backgrounder explores their importance, the many challenges they face, and how to track the agencies and programs meant to protect them.

Decades after the nation’s capital began its historic cleanup, sanitary sewage still occasionally swamps the Potomac River. Are sewage systems also dumping human waste and other pollutants into waterways near you? This week’s TipSheet has the background on the problem of combined sewage overflow, as well as resources for finding out what’s happening near you.