By Marlene Cimons
Orange isn't just the new black. It's also the new green. Twenty years ago, an orange juice producer dumped thousands of tons of orange peels and pulp onto a barren section of a Costa Rican national park, which has since transformed into a lush, vine-laden woodland. The shift is a dramatic illustration of how agricultural waste can regenerate a forest and sequester vast sums of carbon—for free.
Even more remarkable, it was an accident.