Op-Ed: Trucks, Trains and Trees

Flying in here by prop plane from Manaus, you can understand why the Amazon rainforest is considered one of the lungs of the world. Even from 20,000 feet, all you see in every direction is an unbroken expanse of rainforest treetops that, from the air, looks like a vast and endless carpet of broccoli.

[Photograph by: Nancy Ostertag/Getty Images]