Tu BiShvat has religious roots, but early Zionists embraced the day in new, more secular ways.
Planting trees is a popular way to do something for nature, but putting seedlings in the ground is just the first step. And without long-term care, those sprouts may not last.
People have painted on cave walls and written on clay and wax tablets, papyrus and paper made from wood. Could screens replace paper someday?
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.