Millions of Americans rely on their own onsite wastewater treatment, commonly known as septic systems. And many of those systems are connected to private wells. But unless they are properly sited, designed, built and maintained, they can contaminate drinking water, bringing dangerous waterborne illnesses. The latest TipSheet explains how to turn this often ignored issue into a local story.

A recent study of global cropland expansion highlights several trends that are ripe with environmental news stories. One finding: New farm fields have taken over an area the size of Texas and California combined since the start of the century, an expansion primarily affecting biodiversity-rich natural ecosystems, with Africa leading the cropland boom. Freelancer Gabriel Popkin explores the latest data and the reporting possibilities.

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.

A new ban is to be imposed on the last kind of asbestos still imported into the United States for use in commerce. But as the Issue Backgrounder explains, the regulatory back-and-forth over the substance by recent administrations won’t alleviate the biggest U.S. problem, which is the long history of its use in a wide range of building materials and other uses raising ongoing occupational risks.

Lead poisoning of U.S. drinking water has been a big headline-grabber in recent years, but there’s an even bigger environmental justice crisis — toxic lead exposure from paint. The latest TipSheet reports that this overlooked school and housing issue is getting new attention, but solving it will be difficult and expensive. Get context, reporting resources and ideas to tackle the story in your community.

Environmental writer Allison Cobb, in “Plastic: An Autobiography,” tells the story of the ubiquitous material through a series of interwoven narratives that range from her own experiences with it (including a discarded plastic car bumper), to the corporate origins of its spread and the way it’s now dangerously carpeting nature and damaging human communities. Contributor Nano Riley has a review in our new BookShelf.

Climate change reporting is sometimes peppered with jargon that confounds rather than clearly communicates. Audiences may miss not just one story’s message, but lose interest in the broader topic. Contributor Rebecca Hersher, a science reporter for National Public Radio, writes how the public’s connection with climate information increases when both journalists and scientists strive to replace elite terminology with simple and accurate language.