Global population increases, surging economic growth in new economies, and an unabated appetite for fossil fuels all are driving huge demand for the world's natural resources. At the same time, climate change is upon us.

Add to that instability across the Middle East--the world's oil epicenter--and the growth of extremism and international terrorism.

The complexities of today's world are confounding and frightening, but there are still reasons for hope:

-Groundbreaking research on alternatives to fossil fuels

-Breakthroughs in energy efficiency

-Progress in addressing threats to ocean and freshwater resources

-Increased understanding of terrorism, poverty, and extremism--threats to the stability of current energy sources

In the face of such extraordinary circumstances, how do we understand the complex interconnections among these issues? What can we do as individuals and as a nation to address them? And what is the way forward when violence and the threat of terrorism put us on a razor's edge?

Sponsored by the 2007 Roundtable at Stanford and Stanford Reunion Homecoming.