In an increasingly urban world, trees can make a major difference. One study found that, for every dollar invested in planting, megacities saw a $2.50 return on their investment.
Pulp and paper production is a major industry with a large environmental footprint. Recently, though, paper companies have worked to reduce pollution and promote sustainable forestry and recycling.
Cutting-edge urban foresters argue not only for the intrinsic value of trees but also for the many economic and health benefits.