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Water in the post-2015 development agenda
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Abouty 450 agreements on international waters were signed between 1820 and 2007

There are numerous examples where transboundary waters have proved to be a source of cooperation rather than conflict. Nearly 450 agreements on international waters were signed between 1820 and 2007.

OSU, 2007
  

148 countries share at least a river basin with neighbors

148 countries include territory within one or more transboundary river basins. 39 countries have more than 90% of their territory within one or more transboundary river basins, and 21 lie entirely within one or more of these watersheds.

UNESCO
  

Vulnerability to natural disasters affecting the water supply hampers economic performance

Climate variability, water resource management and economic development are intricately linked. Vulnerability to natural disasters affecting the water supply hampers economic performance and undermines poverty reduction goals and achievement of the MDGs.

World Water Assessment Programme
  

Global warming will make collecting water increasingly burdensome

Collecting water is expected to become increasingly burdensome with global warming. More regions will experience water shortages, as rainfall becomes erratic, glaciers melt and seas rise. People living within 60 miles of a shoreline — a full third of the world's population — will be hit especially hard, as they are most susceptible to increased salinity of coastal potable water sources. As it takes more time to gather water and fuel, the available time for education or other economic and political activities decreases. Already, the majority of children worldwide who do not attend school are girls.

UN Women
  

People will feel the impact of change most strongly through water.

Water is a primary medium through which changes in human activity and the climate impact with the earth’s surface, its ecosystems, and its people. It is through water and its quality that people will feel the impact of change most strongly.

World Water Development Report 2012
  

The cost of adapting to a 2°C temperature rise could reach US$100 billion per year

The cost of adapting to the impacts of a 2°C rise in global average temperature could range from US$70 to $100 billion per year between 2020 and 2050, according to the World Bank.

World Water Development Report 2012
  

By 2050 the number of people vulnerable to flood disaster is expected to increase to 2 billion

By 2050, rising populations in flood-prone lands, climate change, deforestation, loss of wetlands and rising sea levels are expected to increase the number of people vulnerable to flood disaster to 2 billion.

World Water Development Report 2012
  

Climate change may affect water availability

Climate change is predicted to have a whole range of impacts on water resources. Variation in temperature and rainfall may affect water availability, increase the frequency and severity of floods and droughts, and disrupt ecosystems that maintain water quality.

Intergovernmental Panel on Climate Change (IPCC)
  
Last update:18 Sep 2014