Aldo Leopold's classic work A Sand County Almanac is widely regarded as one of the most influential conservation books of all time. In it, Leopold sets forth an

Human health depends on the health of the planet. Earth’s natural systems—the air, the water, the biodiversity, the climate—are our life support systems.

First published in 1949 and praised in The New York Times Book Review as "full of beauty and vigor and bite," A Sand County Almanac combines some of the finest