[Submitted by: Paul Christmas]
"The following site has a detailed section on freshwater and many other topics. It will be useful for the options section of the IB and in future will develop sections for the core. A key highlight are some of the detailed case studies. However the site is under development and so some section are are not complete. Some food and health case studies are required and the extreme environments sections is still being written. The site will be useful for both students and teachers of IB geography but has not been written exclusively for the IB."
China's heavy industries have tipped so much waste into the river that enormous stretches of it, amounting to over a third of its entire length, cannot be used at all anymore, either for drinking, fishing, farming or even in factories, according to criteria used by the United Nations Environmental Programme.
Advocating for the preservation of wetlands. Go to the "Useful links" on the right hand side and find the "Factsheets." A couple of them are useful for the role of wetlands in the provision of freshwater.
Parts of India are on track for severe water shortages, according to results from Nasa's gravity satellites.
The Grace mission discovered that in the country's north-west - including Delhi - the water table is falling by about 4cm (1.6 inches) per year.
Writing in the journal Nature, they say rainfall has not changed, and water use is too high, mainly for farming.
Fresh water accounts for only 2.5% of Earth's water, yet it is vital for human civilization. What are our sources of fresh water? In the first of a two part series on fresh water, Christiana Z. Peppard breaks the numbers down and discusses who is using it and to what ends.