Since the marshes are located at the tail end of the Tigris-Euphrates watershed, water storage and control projects are the main projects impacting on the wetlands.

For many years, negotiations between Turkey and Syria over the Orontes or Asi River were linked to issues concerning the Euphrates and Tigris rivers shared between Turkey, Syria and Iraq, and progress of the former was dependent on progress of the latter

The length of the river is open to discussion. Depending on the source consulted, this ranges from 248km to 556km. Rainfall in the basin is about 644mm annually. The average temperature is around 16°C. The climate is semi-arid to arid in Lebanon, with annual rainfall of about 400mm

The annual amount of water used in Syria is about 15BCM. This comes from the Euphrates (50 per cent) and the Asi River basins (20 per cent). Of the water usage from the Asi River, 2,230MCM are used for irrigation, 320MCM for domestic purposes and 270MCM for industrial purposes. The total amount of water withdrawn from the Asi River is 2,730MCM

In all three riparian countries, the river is used mainly for irrigation, domestic water supply and hydropower. The Asi River is diverted to the Homs-Hama water channels and Ghab-Roudji irrigation systems to meet the needs of Lebanon and Syria. The water is also stored in the Zeita Dam for domestic and irrigation purposes and energy production.

Turkey-Syria Relations were affected throughout the Cold War era and into the 1990s. The water issue became a foreign relations matter once again when both countries began using the waters of the Euphrates-Tigris basin in the 1960s and building irrigation and energy-related projects.

The foundation stone of the dam was laid on 6 February 2011. On completion, the dam is expected to be 22.50 m high, with a capacity of 110MCM. Of that, 40MCM will be used for flood prevention and the rest for energy production, and irrigation (around 9,000 hectares of agricultural land).

Sustainable water resource management in Iraq has no shortage of challenges. Some of Iraq’s water hardships, like seasonal floods and droughts, occur naturally. Many of the most disruptive and destructive problems are, however, man-made: water infrastructure debilitated from decades of war and neglect; inefficient and outdated agricultural practices; rapid population growth and urbanization; competing water management approaches within transboundary river systems; and the looming crisis of climate change. The government of Iraq has plans to address the situation but it remains to be seen whether major reform will transpire.

Iraq’s extensive reservoir network is at the heart of the country’s ability to manage its available water resources. The dams are operated in three independent systems: System No. 1 encompassing the Euphrates, Tigris, Greater Zab and Lesser Zab; System No. 2 encompassing the al-Adhaim watershed; and System No. 3 encompassing the Diyala watershed.

Bilateral and tripartite meetings have taken place between Turkey, Iraq and Syria since the mid-1960s. Despite the various attempts to negotiate a water-sharing agreement, the three riparians have disagreed on the division of water quantities and embarked upon individual water sector projects.