“The big problems facing the world today are not at all things beyond our control. Our biggest threat is not an asteroid about to crash into us, something we can do nothing about. Instead, all the major threats facing us today are problems entirely of our own making. Since we made the problems, we can also solve them. It is entirely within our power to solve our problems.”

A presentation of the main ideas of his book, “Collapse”:

“Why do societies fail? With lessons from the Norse of Iron Age Greenland, deforested Easter Island and present-day Montana, Jared Diamond talks about the signs that collapse is near, and how — if we see it in time — we can prevent it. ”