Every year, the UN campaigns to raise awareness about environmental issues like marine pollution ... the most beautiful — and heartbreaking — images of our planet and its flora and fauna.

Many of the photos were taken before water and air pollution were fully regulated. The Clean Air Act was passed in 1970, and the Clean Water Act was passed in 1972. Baltimore, Birmingham ...

International open-water swimmer Meenakshi Pahuja recently swam from Revas Jetty in Alibaug to the Gateway of India to raise awareness on water pollution.

"This matter is urgent. Fish are dying. The situation has to be halted, and penalize the responsible contractor." ...