Some people compare living life to riding a rollercoaster - one moment you're at the highest top, the next, you're falling ...

Toxic smog blankets New Delhi, disrupting travel and plunging air quality to hazardous levels - Dense toxic smog has ...

Flights disrupted and construction work banned after Delhi air pollution suddenly worsens - Indian capital’s air quality ...

In May of 1963, National Geographic photographer and correspondent Barry C. Bishop was part of the first American team to ...