There’s perhaps no better evidence of China’s growing appetite for American agricultural products than the ongoing transformation of the port of Oakland.

Despite some critics, the recent U.S.-China agreement over carbon emissions has sparked remarkable optimism in global climate negotiations. It’s also opened the door to new bilateral engagement between the U.S. and Chinese environmental communities on other issues, including China’s massive air pollution problems (16 of the world’s 20 most polluted cities are in China).

China faces a dilemma. It is home to 20 percent of the world’s population but only seven percent of the world’s water resources and nine percent of the world’s arable land. At the same time, a rising middle class is demanding more food. Over the last 30 years, China’s meat demand has quadrupled.

Half the world’s pigs – 476 million – reside in China. Increasingly prosperous consumers are eating fewer grains and demanding a more protein-rich diet, ballooning the pork industry to 15 times its 1960s-era size. In the last 30 years, Chinese demand for meat has quadrupled and China is now the largest consumer of seafood in the world.

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.

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.

China is one of the world’s 12 “mega-biodiversity” countries, but its incredible natural landscapes, from Sichuan’s sparkling, turquoise-colored lakes to Guilin’s dramatic karst topography, are bearing the cost of rapid economic development, writes British environmental photojournalist and videographer Sean Gallagher in a new multimedia e-book.