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.

The focus of the global community on the outcomes of the Paris Conference of Parties (COP) to the UN Framework Convention on Climate Change (UNFCCC) in December is unprecedented. The world awaits, anticipating the details of an international and legally-binding agreement to address climate change. [Video Below]

Rashidy Kazeuka says a forest cleared for charcoal is a silent and desolate place. No birds or other wildlife, just a barren, dried out landscape.

By comparing “first wave” developing countries, like Sweden and the United States, to “second wave” developers, like South Korea and Japan, Thomas Anderson and Hans-Peter Kohler of the University of Pennsylvania seek to explain why countries that underwent socioeconomic development in the first half of the 20th century have slightly higher fertility levels than those that developed later. Despite “both sets of countries attaining high income and generally low fertility, contemporary gender norms and levels of gender equity differ between them,” write Anderson and Kohler in a new study in Population and Development Review.

Camels pulling wooden carts loaded with coconuts plod down the main road amid speeding motorcycles, buses, rickshaws, and cars. Farmers sit atop slow-moving oxcarts loaded with grasses and other cattle feed. In this region of central Gujarat, India, it appears that rural life has not changed for decades.

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.

The announcement in Washington on September 24 that President Xi Jinping is committing China to a national carbon trading system is the latest step in an important partnership between the two biggest carbon emitters in the world.