The 5th World Water Forum, the largest water-related event in the world, concluded in Turkey on Sunday, or the World Water Day, with firm commitments of tackling global water challenges jointly in the context of sustainable development.

The 5th World Water Forum is held in Turkey from March 16 to 22. The forum, the largest water-related event in the world, attracts 25,000 participants from all over the world, including governments, nonprofit groups, institutions and individuals.

The forum, organized every three years by World Water Council ( WWC) and the host country, was attended by a record of 25,000 participants from all over the world, including a number of heads of state, more than 90 ministers, 63 mayors, 156 delegations and 148 parliamentarians.

Imminent water crisis

During the seven-day forum, the attendees agreed that water is an increasingly vital resource in the 21st century, when we are challenged by overpopulation, climate change, ecosystem collapse, urbanization, consumption pattern change and financial crisis.

"Water is the most fundamental element of life," said Turkish President Abdullah Gul at the opening ceremony of the forum on March 16, which is also attended by Iraqi President Jalal Talabani, Tajikistan's President Emomali Rahmon, Crown Prince Willem Alexander of the Netherlands, Japanese Crown Prince Naruhito Kotaishi and South Korean Prime Minister Han Seung-Soo.

"It's clear that we have to place special importance on water," since it is "one of the most crucial elements" that drive sustainable development, Gul said.

According to statistics of the forum, only 2.5 percent of all the water on Earth is freshwater, two-thirds of which is in glaciers and polar ice caps. Therefore, available freshwater represents less than 1 percent of the world's total water stock.

Furthermore, a study released at the forum showed that 85 percent of the world's population live on the droughty land of the Earth. More than 1 billion people living in arid and semiarid parts of the world have little access to renewable water sources.

According to the 3rd UN World Water Development Report released by UN Educational, Scientific and Cultural Organization during the forum, more than 900 million people still have no access to drinking water and 2.5 billion people are still deprived of sanitation.

Meanwhile, the world's population, currently estimated at 6.6 billion, is growing by about 80 million each year, which means demand for freshwater is increasing by 64 billion cubic meters a year.

World Resources, a joint publication of the UN Environment Program, the World Bank and the World Resources Institute, warned that "the world's thirst for water is likely to become one of the most pressing resource issues of the 21st century."

Platform for debate and share

Some 100 discussions or roundtables were held during the event with a variety of topics, including climate change, transboundary waters, water-related risk management, managing and protecting water resources and water investment.

Three documents were adopted at the forum, namely the Istanbul Declaration of Heads of State on Water; Istanbul Water Consensus for Local and Regional Authorities; and Istanbul Ministerial Statement, underlining the acceptance of sustainable water schemes at all levels.

A number of prizes was awarded to those who contributed to cooperation and development of water resources. Chinese city of Guangzhou was honored on Wednesday the first-class Mexico Water Prize for the government's excellent water management in recent years.

A water expo and a water fair were also staged during the forum, which attracted hundreds of companies from Germany, Netherlands, China, South Korea and Japan, to show the latest water-related technology and products.