The United States: The world’s lone remaining superpower, home of the world’s largest economy and military, the world’s largest producer and consumer of natural gas, and soon the leading producer and consumer of oil.

“Clean energy has gone from being the ‘right thing to do’ in combating climate change, to being the most cost-effective option for many energy-insecure countries,” said Carrie Thompson, deputy director of the U.S. Agency for International Development’s Regional Development Mission for Asia, during a day-long conference on renewable energy at the Wilson Center on October 27 (read part one of our coverage here).

The renewable energy sector has reached a critical inflection point where costs are competitive with fossil fuels and investment is ramping up in a big way, said more than a dozen experts at a day-long conference co-hosted by ECSP and the U.S. Agency for International Development’s Office of Global Climate Change on October 27.

The world has entered a new energy era. Last year, for the first time in four decades, the global economy grew without an increase in CO2 emissions, according to the Renewable Energy Policy Network for the 21^st Century.

China’s announcement of a nationwide cap-and-trade program is a sign that the government is serious in its “war against pollution,” says China Environment Forum Director Jennifer Turner, and it may help move the climate change discussion in the United States too.

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

In May 2011, two weeks before I was scheduled to start research in the region, a Mongol herder named Mergen was hit by a mining truck while protecting his pastureland in Xilingol, Inner Mongolia. He was dragged 140 feet and killed. His death sparked a month of protests.