So you think you know all the issues facing the planet? I just finished reading this provocative little book which has 66 mini-essays on the myriad of ways we're screwing the planet and the developing nations. Obviously it sacrifices depth for breadth but it's easy to read and a great book for raising your awareness. I cringed at a few of the broad statements but there are references and further readings to back it up.
Yes, it does leave you feeling rather dismayed. Ignorance is bliss isn't it? Read it for yourself and figure out whether you can do anything. Buy it here for £5.59.