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

We can build an economy that does not destroy its natural support systems, a global community where the basic needs of all the Earth's people are satisfied, and a world that will allow us to think of ourselves as civilized. This is entirely doable.

Socialism failed because it couldn't tell the economic truth. Capitalism may fail because it couldn't tell the ecological truth.

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.

Saving civilization is not a spectator sport.

Today, more than ever, we need political leaders who can see the big picture, who understand the relationship between the economy and its environmental support systems.

Farmers...can no longer keep up with rising demand; thus the outlook is for chronic scarcities and rising prices.