A map of recreation at Snow Lake, Washington, based on social media posts.
Recreation is the most popular use of national forests.
Drought has lowered water levels in the reservoir at Boca Dam, on the Truckee River in Nevada. Photo by Bureau of Reclamation.
Drought—a normal part of the climate cycle—has come and gone for millennia, at times causing ecological or economic devastation.
Close up of female dwarf mistletoe and berries. USDA Forest Service photo by Raymond Davis.
Dwarf mistletoe’s quaint name belies its severity.
A northern spotted owl in flight. Photo by Julie Jenkins
Threatened northern spotted owls are an important indicator species for old-growth forest ecosystems and face threats from habitat loss and competition with barred owls.
Researchers can calculate aboveground biomass and identify tree species from this type of 3-dimensional imagery. Image courtesy of Mike Alonzo.
Alaska’s boreal forests are vast and remote, making it challenging to accurately monitor forest struc
The same lichen Evernia prunastri, “Antlered perfume,” growing in an unpolluted (left) vs polluted (right) area. Left: Photo courtesy of Richard Droker. Right: USDA Forest Service photo by Sarah Jovan.
Air pollution poses a major threat to human and environmental health in many parts of the world.
Oregon has 30 million acres of forest.
The state of Oregon approached the Pacific Northwest Research Station for help in developing a reliable forest carbon accounting framew
A researcher checks equipment that collected data during a prescribed, stand-replacing fire conducted by the Richfield Ranger District in the Fishlake National Forest, Utah, on June 20, 2019. USDA Forest Service photo by Roger Ottmar.
Cheatgrass is an ecosystem transformer.
Photo credit: Becky Kerns
Reintroducing fire is considered critical for the restoration of many fire-dependent forest ecosystems.
In 2013, the Rim Fire burned a large area across the Stanislaus National Forest and Yosemite National Park during the second year of the most extreme drought in the historical record.