Potential of Nature-Based Solutions (NBS): 2018 World Water Development Report addresses contemporary water management challenges across all sectors
Note to Reader:
The 2018 edition of the World Water Development Report (WWDR 2018) seeks to inform policy and decision-makers, inside and outside the water community, about the potential of nature-based solutions (NBS) to address contemporary water management challenges across all sectors, and particularly regarding water for agriculture, sustainable cities, disaster risk reduction and water quality.
The WWDR2018, titled Nature-based solutions for water, demonstrates how nature-based solutions (NBS) offer a vital means of moving beyond business-as-usual to address many of the world’s water challenges while simultaneously delivering additional benefits vital to all aspects of sustainable development.
Nature-based Solutions for Water
22 March 2018 – As more than 2 billion people lack access to safe drinking water and more than double that number lack access to safe sanitation, the international community is drawing attention to nature-based solutions for the water challenges of the 21st century on this World Water Day.
The theme of this year’s commemoration highlights the unique and fundamental role that nature-based solutions play in regulating the water cycle, keeping freshwater clean and improving the water security of our water cycles.
The Water Paradox
With the global population continuing to grow rapidly, demand for water is expected to increase by nearly one-third by 2050, while our freshwater ecosystems are degrading at an alarming rate – 64-71% of the natural wetland area worldwide has been lost due to human activity in the last century. Furthermore, water pollution has worsened in almost all rivers in Africa, Asia and Latin America since the 1990’s
“We need to deal with the water paradox,” said Erik Solheim, head of UN Environment, calling attention to the need to work together towards a solution for our water challenge. “Water is the essence of life, but we don’t save it enough. It’s time to change mindsets, it’s not about development versus the environment.”
The 2018 edition of the UN World Water Development Report outlines a range of nature-based solutions for water management, from personal measure that can be applied in the home, to examples of “green” infrastructure that can be applied to rural and urban landscapes – such as planting new forests, restoring wetlands, and constructing green walls and roof gardens.
Balance Between Green and Grey
The report further clarifies that despite recent advances in the application of green infrastructure, a holistic approach to water management is to identify the most appropriate, cost-effective and sustainable balance between grey infrastructure and nature-based solutions.
“Today, more than ever, we must work with nature, instead of against it,” said Audrey Azoulay, Director-General of UNESCO in the foreword of the report. “Demand for water is set to increase in all sectors. The challenge we must all face is meeting this demand in a way that does not exacerbate negative impacts on ecosystems.”
To Learn More:
Download the Executive Summary for 2018 UN World Water Development Report, Nature-based Solutions for Water