Purges of EPA science panels by Administrator Scott Pruitt are just one among many moves in an ongoing dispute over the integrity of the environmental sciences in government policymaking. The latest Issue Backgrounder takes a deep dive with a briefing on five likely battles ahead for the coming year.

Pesticides are a big environmental story. And under Trump, they are much in the news. But pesticide regulation, and its political, environmental and public health fallout, is an older and more complex tale. The Backgrounder explains how the rules work (and don't), and provides leads and resources for your reporting.

Hurricane Irma left millions of Floridians in the dark, while Maria stripped Puerto Ricans of power, potentially for months. Can the electric grid be made less vulnerable? Our Backgrounder has a dozen-plus angles to jump-start your power reporting, from stronger poles to microgrids. Plus, hurricane coverage resources. [25]

It's a deadly threat only fitfully reported by news media. But coverage of insect-borne diseases could be improved by environmental journalists who understand the intersection of bugs, humans and climate. A two-part Issue Backgrounder with basics, key resources and a rundown on significant illnesses brought by mosquitoes [34], and by ticks and other insects [35]. 

Safe drinking water is a long-standing challenge left unmet all across the United States. As our latest Issue Backgrounder explains, telling the story of drinkable water requires digging beneath complex relationships, understanding the sources of drinking water and much more. Here's help to do it.

Atlantic hurricane season is underway, and our latest Issue Backgrounder helps reporters get prepared, not just for the inevitable surprises, but also for the new issues these storms are raising. Plus, as part of our recent series: An Inside Story on award-winning storm coverage [48] and a TipSheet on covering hurricanes [49]. 

More stories about lead contamination of drinking water are unfolding around the country, even as the Flint disaster lingers. A new Issue Backgrounder details how lead gets into drinking water, how it leads to health problems among the most prevalent in the United States, and what solutions might address the crisis.

Has President Donald Trump really unraveled Obama-era auto mileage standards and the climate policy they supported? Far from it, explains our latest Backgrounder. Here's why true change on auto emissions will take much more than a presidential fiat. And get angles and sources to report the ongoing issue. 

Wondering what WOTUS is? Or how the Clean Water Rule relates to the Clean Water Act and to the Section 404 permitting program meant to prevent the destruction of U.S. wetlands? Our Beat Basics column explains the history and background of the rule to help you cover White House, EPA and court action likely ahead.

Keystone XL and Dakota Access may be the biggest pipeline stories so far, but they're far from the last, as dozens of other pipeline proposals come into play. Track this developing beat with our latest Issue Backgrounder, which provides a walkthrough of legal and regulatory challenges, and a case-by-case rundown.