“The spruce is sculpted by the elements, bottlebrush scrawny, topiaryed by the weather. This boreal forest stretches over eight thousand miles in an unbroken line around the circumference of the globe: 30 percent of the world’s tree cover, four million square miles, the planet’s single largest biome. A broad, evergreen brushstroke that encircles the north, running through North America, Scandinavia, Siberia, marking the band of the subarctic. Forests of moose, of lynx, of bear. Forests of thimbleberry, strawberry, nagoonberry, lowbush cranberry, highbush cranberry, watermelon berry, bunchberry, crowberry, huckleberry, blueberry, cloudberry, bearberry, salmonberry. Forests home to many of the world’s remaining hunter-gatherer societies, summers of wildfires and perpetual light, and winters of fifty below.”