On the route from San José to Costa Rica’s Central Pacific coast lies the Tárcoles River Bridge, commonly known as the ...

More than 200 rivers around the world have been analysed to reveal the water quality and what lurks beneath the surface.

The world record for a volunteer river clean-up has been smashed by 998 with 1,327 people taking part. The previous record ...

The South Asian countries of Pakistan, India and Bangladesh are among the most polluted countries in the world while Australia, New Zealand and Iceland are among the least polluted countries ...

The U.N. has identified Kabwe, a city of almost 300,000 people in Zambia, as one of the most polluted places on the planet.

Chad, in central Africa, is the world’s most polluted country, while California has the worst air pollution in North America, ...