The North American boreal forest contains approximately 277 billion trees, 31% more than previous estimates, based on advanced machine learning analysis of extensive tree plot data.

This forest is located in the very northern portion of North America including most of Canada and atop high-altitude mountains in the United States. The average weather is frigid, long ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Red alder is the largest native alder species in North America with a ...

More information: Sean A. Parks et al, A fire deficit persists across diverse North American forests despite recent increases in area burned, Nature Communications (2025). DOI: 10.1038/s41467-025 ...

"Protection of natural forests is the best nature-based solution." More information: Kun Xu et al, How many trees are there in the North American boreal forest?, Ecography (2025). DOI: 10.1002 ...