Rivers - News, Trends, Rivers Links
Number of dams built in 20th century
In the 20th century, 800,000 small dams and 40,000 large dams were constructed. The greatest numbers are found in China, USA, ex-USSR and India
Tags : dams water bodies
Topics : Hydro Energy
Invasive species threat to freshwater species
Another threat to freshwater species and lakes and rivers than sustain them is the introduction of non-native or "exotic" species into an aquatic habitat. They can do a lot of damage
Tags : fish freshwater species water bodies lakes