The pork industry in China accounts for 65 percent of domestic meat consumption, but also produces 1.29 billion metric tons of waste every year. China’s growing appetite for meat has put tremendous pressure on the livestock sector, which now produces three times more waste than industrial sources, and created a series of environmental and food safety issues.

Earlier this week, the Department of Defense released its first Quadrennial Defense Review since fiscal cliffs, shutdowns, and spending cuts hit the federal government. Not surprisingly, “austerity” shows up in almost every chapter of the report. What shows up even more? Climate change. For the second QDR in a row, the Pentagon has called out climate change as a “significant challenge for the United States and the world at large.”

How has China managed to feed nearly one-quarter of the world’s population with only seven percent of the world’s arable land?

In 1995, Lester Brown forecasted doom and gloom for China’s ability to produce enough grain for its people, in his popular book, Who Will Feed China? He hypothesized that China would be forced to buy grain from abroad, thereby seriously disrupting world food markets.

In the sleepy northern Thai border town of Huay Luk, a community leader, Pornsawan Boontun, still remembers the day when villagers netted a Mekong giant catfish more than a decade ago. The fish weighed 615 pounds, and it surprised everyone since the elusive species has never been common in this stretch of river.

Factories in China’s Pearl River Delta tick-tock around the clock, rapidly churning out gadgets from iPhones and Barbie dolls to forks and light bulbs, shipped off to village shops in Uganda and super Walmarts in America’s sprawling suburbs. But far from the global consumer’s view, manufacturing and rapid development are placing unrelenting pressure on China’s environment.

The original version of this article appeared on the Aspen Institute blog.

When journalist Alan Weisman proposed a new book on the challenges posed by human population growth, his editor said, “That one’s a live wire; don’t touch it.”

We made the crossing at night from Chamoli, reaching Okund, a Himalayan foothill town after dark. The innkeeper, anxious for guests in a travel economy that came to a standstill in mid-June, cooked dal and nan bread for dinner and then showed us to a room that was unlit and unheated.

The original version of this article, by Lisa Palmer, appeared on The Yale Forum on Climate Change and the Media.

Humans, it’s no secret, are versatile and unpredictable in how they use their land. We build mega-cities in deserts, raise crops on flood plains, live along vulnerable coast lines enjoying seas dangerously rising, and burn rain forests to create new pastures.