They’re a carbon sink, a playground and a major market, but also a source of smoke pollution and pest infestation. Millions of acres of Canadian forest are a big North American story, and the latest Reporter’s Toolbox points you to a central data source that can help quantify, analyze and visualize the numbers and see the proverbial forest for the trees.

Even though the United States suffers multiple billion-dollar climate change-related catastrophes, the federal government has ceased sharing the data publicly. And it’s far from the only example of environmental data being blacked out, notes the latest Reporter’s Toolbox. But at least in some cases, civil society organizations have rescued the information and put it back online. See what’s still available.

Hundreds of thousands of polluted, abandoned industrial sites — called brownfields — dot the United States. For reporters seeking local environmental stories, this profusion of problem spots cries out for coverage. The latest Reporter’s Toolbox points you to a series of government databases that track them and let you map them, but warns that the going won’t be easy. Find out why.

As one data source disappears, another often emerges, finds Reporter’s Toolbox, as it searches for ways to report on real estate risk. In our latest column, insight into where to find information on home hazards, especially from climate change, plus smart ways to use the data for your reporting and some emerging gaps to be aware of.

At one time, the U.S. Environmental Protection Agency was a reporter’s mecca for databases. Nowadays, not so much. But as the latest Reporter’s Toolbox points out, there remains a great government data source for journalists focused on environmental issues. Find out more about the official source for spending data on the U.S. government, including its superpower — search.

A massive trove of mappable water data from the U.S. Geological Survey offers reporters resources to cover present-day flooding threats, compare them to past flood events or help prepare reporting for tomorrow’s disasters. According to the latest Reporter’s Toolbox, its various tools let you pinpoint immediate flooding, map future flood hazards and even configure phone alerts for breaking events.

Efforts under Trump 2.0 to cut funding for environmental justice programs may be the new reality, but the uncertain status of hundreds of Biden-era grants offers important local stories. And as Reporter’s Toolbox finds, a database that rescued federal grant information helps make that reporting possible, with coding by congressional district to put the conflict into political context.

Drinking water may be ubiquitous in the United States, but that doesn’t mean it’s always safe. To report the answer in your community, the latest Reporter’s Toolbox suggests exploring the Safe Drinking Water Information System, a federal government database mandated by the Safe Drinking Water Act. Here’s how to use it to identify whether your local systems meet its standards.

Cropland can easily be found time and again at the heart of the key concerns on the environment beat, whether climate, water, chemicals or, of course, land. The latest Reporter’s Toolbox shares a high-quality, mappable database that can serve up stories on more than 100 categories of crops, with numbers drawn from satellite imagery. Plus, a pro tip on using the data smartly.

An important federal database that tracks Arctic ice and snowmelt — which help address concerns like sea level rise and fresh water resources — is facing funding cuts and reductions in services. The latest Reporter’s Toolbox looks at the kind of high-quality information the National Snow and Ice Data Center can provide environmental reporters, including for local stories. That is, while it lasts.