FIGURE 2.5 Photo Essay: Human Impacts on the Biosphere in North America While parts of North America remain relatively unimpacted by humans, much of this region has seen low-to-medium impacts, and the parts where most people live are highly impacted.
2.5a Courtesy James P. Blair/National Geographic/Getty Images, 2.5b Courtesy Wild Horizons/UIG via Getty Images, 2.5c Courtesy NASA, 2.5e Courtesy Daniel Acker/Bloomberg via Getty Images, 2.5f Courtesy Rick Eglinton/Toronto Star via Getty Images, 2.5g Courtesy Mandel Ngan/AFP/Getty Images