The U.S., Brazil and China all released major commitments to reduce or at least slow their greenhouse gas emissions. Continue reading →
Around 30 percent of China's Ming-era Great Wall has disappeared over time as adverse natural conditions and reckless human activities.
Reefs and marine life stand being destroyed by China's effort to build islands to boost their political power.
Right now, there are 28 mega-cities in the world, with about 450 million inhabitants among them. So, which world cities make the cut?
A recent documentary, "Under the Dome," depicts Chinese residents coping with worsening air quality. Just how bad is pollution in China?
The controversy over construction of Nicaragua's Interoceanic Grand Canal makes it a good time to look at the some of the biggest man-made waterways on the planet.
The removal of the documentary underscores the ruling Communist Party's sensitivity to public debate over China's notorious smog problem.
See images from the 2015 Harbin International Ice and Snow Festival, home of the world's largest ice sculptures.
+ Load More