The overriding challenge for our generation

Global warming is going to require us all to change--if not to stop warming, then to adapt to a warmer planet.

If that's not daunting enough, we have to change to avoid a world-wide resource crunch.  I found the following short essay explaining this economic challenge.  It's by a respected researcher, Lester Brown.

Reforming how we use water is an important part of our necessary change.