Archive for March 2, 2009

Erkin | March 2, 2009
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Facts and figures about water and international law

The history of international water treaties dates as far back as 2500 BC, when the two Sumerian city-states of Lagash and Umma crafted an agreement ending a water dispute along the Tigris River.

There are more than 3600 international water treaties dating from 805 AD to 1984 AD.

The UN Convention on the Law of the Non-navigational Uses of International Watercourses was adopted May 21, 1997 after 27 years of development. The Global Convention sets out the basis rights and obligations between States relating to the management of international watercourses.

While the ten-year anniversary of the Watercourses Convention passed in May 2007, only 16 nations have ratified the Convention. For the Convention to enter into force, 35 are needed.

The primary substantive rule of international law is that States must utilize their international watercourses in an equitable and reasonable way.

In the 20th century, only seven minor skirmishes took place between nations over shared water resources while over 145 treaties were signed during the same period of time.

Information from:
the Transboundary Freshwater Dispute Database (TFDD) at Oregon State University

Source: UNESCO Water Portal, July 2007

Category: Facts and figures |
Erkin | March 2, 2009
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Facts and figures about desertification

Contrary to popular belief, desertification is not the expansion of deserts. It is the degradation of land in arid, semi-arid and dry sub-humid areas caused mostly by human activities and climactic variations.

One third of the world’s land surface is covered by dryland ecosystems. These areas are very fragile and react strongly to inappropriate land use.

More than 250 million people worldwide are affected by desertification. The real cause for alarm is that another one billion people are at risk, residing in over 100 countries.

Over 70 percent of the world’s drylands (excluding hyper-arid deserts) are degraded.

Not all consequences of the degradation of drylands are felt by those inhabiting the drylands themselves. Dust storms and air pollution are often a result of degraded drylands and negative impacts were felt at long distances in cases such as the Dust Bowl years in the United States, the Virgin Land scheme area of the former Soviet Union in the 1950s and in the African Sahel in the 1970s and 1980s.

It is estimated that the negative impact to annual incomes in areas directly affected by desertification is approximately USD$42 billion per year. And this number only takes into account the “direct” costs.

Information from:
United Nations Convention to Combat Desertification website

Source: UNESCO Water Portal, June 2007

Category: Facts and figures |