A new data tool that captures information on 1.5 million-plus active U.S. oil and gas production facilities can be a powerful tool for journalists looking to report on potential pollutants, especially when overlaid with local census data, school locations and the like. Reporter’s Toolbox takes a closer look at the new Oil & Gas Threat Map, shares caveats and offers story ideas.

A milestone legal challenge soon to be decided by the U.S. high court could severely limit how the U.S. government regulates the greenhouse gasses that cause climate change. The new Issue Backgrounder takes a look at West Virginia v. EPA, its legal implications, the politics behind it and what it would mean for efforts to curb future impacts of global warming.

A casual query from an editor prompted an investigative reporter to pair up with a data journalism reporter at a partner news organization to dig into the risks that thousands of dry oil wells across California posed to surrounding communities, including many low-income Latino neighborhoods. How the resulting award-winning series came together, in an Inside Story Q&A with reporter Mark Olalde.

An annual list of endangered rivers is out, but with it the journalism just begins, since there are numerous troubled river systems, most likely including one near you. The latest TipSheet details how the endangered river list can serve as a template for local reporting and provides story ideas, questions to ask and resources to tap for your coverage.