Hard not to blockquote every last word of Masters of Earth, Alone in the Universe, but here's a taste:
Human beings are not wicked by nature. We have enough intelligence, goodwill, generosity and enterprise to turn Earth into a paradise both for ourselves and for the biosphere that gave us birth. We can plausibly accomplish that goal, at least be well on the way, by the end of the present century. The problem holding everything up thus far is that Homo sapiens is an innately dysfunctional species.
Chances are, if you visit this blog regularly, that you will find yourself saying, "Yes, I know that" many times during your reading. Read it anyway. He says what you know succinctly and well. And maybe, just maybe, you'll think of someone to pass it on to, who may not yet get the big picture Wilson paints.