Commentary by Claudia Sadoff
“Some 70 percent of the world’s freshwater is used for agriculture, but cities and other sectors have growing demands on the same water resources. To adapt to climate change without undermining food security and farmers’ livelihoods, we will have to fundamentally rethink agricultural water usage, our food systems, and our diets.
A major new report from the Global Commission on Adaptation (GCA) makes this case loud and clear. The report urges us to face the fact that climate change will require ‘massive’ adaptation. It urges us to meet this challenge with urgency and resolve.
A contributor to the GCA report, the International Water Management Institute (IWMI), where I am Director General, is already developing many practical solutions that can be scaled up to adapt to the immense water challenges posed by climate change.
The GCA report paints a sobering picture of our water and food security futures. We can and must adapt more quickly and effectively. Adaptive water management is an important place to start.”
Read the full article on Mongabay.com
Population pressure and increasing water competition in a changing climate require us to take stock of the availability and use of water across scales. Water availability not only influences farmers’ commercial prospects but also irrigation-related enterprises and agri-businesses. Greater water scarcity could jeopardize irrigation and agricultural markets while excessive water use can lead to declining ecosystems, water quality and soil health. IWMI advises development partners and the public and private sectors on all aspects of water resource availability and use through a variety of advanced modeling and remote-sensing products and tools, including 
The ability of farmers to engage in or expand irrigation depends on the prevailing socioeconomic, ecological and political contexts, which are often complex, non-linear and changeable. Overcoming systemic barriers to farmer-led irrigation development while taking advantage of existing opportunities 
A lack of affordable credit, particularly for women and resource-poor farmers, is one of the main barriers to expanding farmer-led irrigation in low- and middle-income countries. But 
Scaling farmer-led irrigation requires strengthening human capacity and knowledge exchange among all actors and stakeholders involved. IWMI takes an action research approach, working with national and international research institutions, governments, extension agents and public and private organizations to co-develop the scaling ecosystem and strengthen capacity to drive scaling networks and collective action. We support the