We know what we have to do. And we know how to do it. If we fail to convert our self-destructing economy into one that is environmentally sustainable, future generations will be overwhelmed by environmental degradation and social disintegration. Simply stated, if our generation does not turn things around, our children may not have the option of doing so.

The foundation is being laid for the emergence of both wind and solar cells as cornerstones of the new energy economy.

Our numbers expand, but Earth's natural systems do not.

Yet, most of the readily accessible reserves of oil formed over hundreds of millions of years will be consumed within a single generation, spanning the years from 1960 to 1995.

A sustainable economy represents nothing less than a higher social order one as concerned with future generations as with our own, and more focused on the health of the planet and the poor than on material acquisitions and military might. While it is a fundamentally new endeavor, with many uncertainties, it is far less risky than continuing with business as usual.

The 20th century was the time when the world turned to use of fossil fuels and the 21st century will be the century of the renewables.

One way or another, the choice will be made by our generation, but it will affect life on earth for all generations to come