Subsistence in not located at the edge of a nutritional cliff, beyond which lies demographic disaster.

This "demographic disaster," Mr. Countryman writes, "has no equal in history, not even the Black Death."

The cure for this demographic disaster is the pooling of resources across generations that we are already seeing in America.

By 1500, Europe was beginning to emerge from these demographic disasters, and populations began to explode.

Failure to generate equitable growth could result in "a demographic disaster marked by rising levels of youth unemployment, social dislocation and hunger."

The cure for our current demographic disaster is the pooling of resources across generations.

The famines of the 1930s, followed by the devastation of World War II, comprised a demographic disaster.

China is a demographic disaster ripe for a return to warlordism.

Public health agencies are striving to avert demographic disaster, pushing for a more effective regulation of ultrasound and reducing school fees for girls, among other measures.

And although Malthus was way off the mark in predicting an early demographic disaster, there are still enough warning signs to keep neo-Malthusians busy.