China’s air quality is poor to say the least, recent reports of families having to use an air purifier in their own homes to avoid breathing the air is quite shocking. The atmosphere in China has… ...

Collage: China’s Week in Photos, Dec. 5-11. A selection of the week’s best photos by Sixth Tone ... school in Shijiazhuang City holds its physical education classes in an indoor enclosure to keep ...

Collage: China’s Week in Photos, Dec. 17-23. A selection ... In this week in photos, a record 2.9 million candidates prepare to take the national postgraduate entrance exam; animals in zoos are warmed ...

NASA scientist explains how Earth can avoid a climate collapse 05:12. NASA has released the first data maps from a new instrument monitoring air pollution from space.

What Major World Cities Look Like at Night, Minus the Light Pollution Photographer Thierry Cohen tries to reconnect city dwellers with nature through his mind-blowing composite images—now at New ...