In twenty short books Penguin brings you the classics of the environmental movement. In this
lyrical meditation on America's wildlands Aldo Leopold considers the different ways humans
shape the natural landscape and describes for the first time the far-reaching phenomenon now
known as 'trophic cascades'. Over the past 75 years a new canon has emerged. As life on Earth
has become irrevocably altered by humans visionary thinkers around the world have raised their
voices to defend the planet and affirm our place at the heart of its restoration. Their words
have endured through the decades becoming the classics of a movement. Together these books
show the richness of environmental thought and point the way to a fairer saner greener
world.