Our neighbor to the north possesses much of the world's remaining undisturbed woodlands, but Canada has degraded more of them in the past 14 years than any other nation, the CBC reported. That's the conclusion of researchers who studied satellite imagery to develop the map below.

The researchers, affiliated with the World Resources Institute, an environmental group, defined intact forest landscapes as "an unbroken expanse of natural ecosystems within areas of current forest extent, without signs of significant human activity, and having an area of at least 500 square kilometers." That's 193 square miles, or 124,000 acres. The largest remaining expanses are the boreal forests of Canada and Russia and tropical rainforest in Brazil. Canada accounted for 21 percent of the intact forests degraded since 2000. In that time, the world has lost 8 percent of these landscapes.

Relatively few places in the Lower 48 of the United States qualify as intact forest landscapes. You can zoom in on them worldwide in the map below. For a more comprehensive, and sobering, view of forest change worldwide (net loss of nearly 150 million hectares since 2000, or 371 million acres), check out the other maps at the Global Forest Watch.