秘鲁亚马逊坦博帕塔国家保护区中的树冠 The tree canopy in the Tambopata National Reserve of the Peruvian Amazon (© Patrick Brandenburg/Tandem Stills + Motion)

秘鲁亚马逊坦博帕塔国家保护区中的树冠 The tree canopy in the Tambopata National Reserve of the Peruvian Amazon (© Patrick Brandenburg/Tandem Stills + Motion)

Happy trees = Clean air

We're gazing up at the tree canopy in the Peruvian Amazon. The Amazon rainforest covers 60 percent of Peru's total landmass, stretching over 37,000 square miles.

Today is World Environment Day, and this year's theme is about air quality. Why show trees to talk about air? Because a healthy forest acts like a natural air filter. Plants absorb large amounts of carbon dioxide and help filter pollutants from the air. Robust forests mean clean air for all. Thanks, trees!