Hungry elephants fight climate change one mouthful at a time.

Highlights from the article: Trees in forests where elephants live had denser wood by about 75 grams per cubic meter than those in forests without elephants. Even just one elephant per square kilometer could increase the amount of plant mass in the forest by up to 60 tons per hectare, enough to suck up more than 10 billion tons of planet-warming carbon dioxide across Africa's 2.2 million square kilometers of forest.