Water wars

66% of the world’s population will face severe water shortages by 2025... These water shortages are already present and just a measure of it are the 75 million climate refugees this year. source: http://panokroko.wordpress.com/2012/04/05/two-thirds-of-the-worlds-population-will-face-water-shortages-by-2025/

Egypt continues to downplay any talk of a military confrontation with Ethiopia (over Ethiopian damming sources of the Nile River)... Ethiopia also objects to the 1929 Nile Water agreement (engineered by Great Britain) which gives Egypt the right to veto upstream water projects. Ethiopia did sign the agreement. However, the 1929 agreement does affect Uganda, Kenya, and Tanzania. In 2010, Ethiopia authored a new regional water sharing proposal, the Entebbe Agreement. This is also called the Cooperative Framework Agreement and Nile Basin Initiative. This agreement would give Uganda, Kenya, and Tanzania a diplomatic mechanism for altering the 1929 division of water rights. Rwanda and Burundi also support the Entebbe agreement. Kenya and Uganda are Ethiopian allies and have forces serving in Somalia. Egypt refused to consider the Entebbe Agreement. Sudan also rejected it. Today, South Sudan’s government said that South Sudan will support the Entebbe agreement. Sudan and South Sudan are always five minutes away from going to war with one another. Nile River water is absolutely essential to Egypt’s existence. This isn’t news – it has been that way for at least 7,000 years. Currently Egypt gets 95 percent of its water from the Nile. Ethiopia’s dam projects are on the Blue Nile (which starts in the Ethiopian highlands), the source of  85 percent of all Nile River water. No wonder every so often Egyptians say they will go to war with Ethiopia over water rights. However, Ethiopia’s political and geographic position makes it a tough adversary for Egypt. Ethiopia is unquestionably the dominant political actor in the Horn of Africa. Somalia remains chaotic but the situation there, compared to a decade ago, increasingly favors Ethiopia. Eritrea, which would love to ally with Egypt against Ethiopia is broke. Every month there are new rumors of coups and infighting among Eritrean factions. Sudan, another likely Egyptian ally in a war with Ethiopia, is on the outs politically with the region and the UN. Worse yet, Sudan faces numerous insurgencies, from Darfur to South Kordofan. source: http://www.strategypage.com/qnd/ethiopi/articles/20130507.aspx

The strain of a growing world population, coupled with the effects of pollution and climate change, has taxed many of the water systems that feed the world's people and are vital for agriculture. More than half of the world's wetlands have disappeared, and climate change around the world has altered weather patterns and led to water shortages... In East Africa, drought has led to lethal fighting among Somali clans for access to potable water. source: http://www.foreignpolicy.com/articles/2014/09/18/water_wars_climate_change_intelligence_strategy

dirtiest rivers in the world: http://www.dirjournal.com/info/the-dirtiest-rivers-in-the-world/