Which environmental books have most influenced you?

Alternatives Journal asked 7 inspiring environmentalists which books most influenced them. The overwhelming favourites were:
Silent Spring, by Rachel Carson
Our Common Future, by Gro Harlem Brundtland
The Ecology of Commerce, by Paul Hawken
Small is Beautiful, by E.F. Schumacher

Now it’s your turn. Is there a book that changed the way you think
about the environment? Is there another that convinced you to do your
bit to slow down global warming, or to start eating locally, or to ride
your bike to work? If you could only have four environmental books on
your bookshelf, what would they be?

Visit the Alternatives blog to make your choices and be entered into a draw to win a box-set of the four environmental classics above.