Eat a More Vegetarian Diet
Across the world, and particularly in the Brazilian Amazon, forests are being cleared for livestock grazing. In other words, the more beef we eat, the more forests we lose. (As you can see in the picture at left, which shows the same area of Brazil in 2000 and in 2010, as land was cleared for livestock grazing and other uses.)
In truth, this is a bigger deal for those in Europe and Japan, which import a lot of beef from Brazil, and not as persuasive an argument for U.S. residents. America produces nearly all the beef it eats, and imports more than half of what it doesn't produce from Canada. In the U.S., most of the land used to raise cattle is former prairie and grassland, not forest.
Still, the situation illustrates a point that warrants underlining: Eating lower on the food chain has less environmental impact. Increasingly, research shows that it's healthier for us, too.