Agriculture is both a victim and a cause of water scarcity. Water of appropriate quality and quantity is essential for the production of crops, livestock, and fisheries, as well as for the processing and preparation of these foods and products. Water is the lifeblood of ecosystems, including forests, lakes, and wetlands, on which the food and nutritional security of present and future generations depends. At the same time, agriculture is the largest water user globally, and a major source of water pollution. Unsustainable agricultural water use practices threatens the sustainability of livelihoods dependent on water and agriculture.
Additionally, climate change will have significant impacts on agriculture by increasing water demand, limiting crop productivity, and reducing water availability in areas where irrigation is most needed or has a comparative advantage. A growing number of regions will face increasing water scarcity. Climate change will bring greater variation in weather events, more frequent weather extremes, and new challenges requiring the sector to take mitigation and adaptation actions.
This blog originally appeared on The Huffington Post as part of a series, "What's Working: Sustainable Development Goals."
As a sector in world affairs, water is reaching a tipping point. Over the next two decades, the global push for food and energy security and for sustaining urbanization will place unprecedented demands on water.
Ours is a "thirsty" world, in which agriculture and energy compete with the needs of cities. At the same time, climate change may worsen the situation by increasing water stress and extreme-weather events. Hence, the water and climate nexus can no longer be a side event at global-climate talks. All of this is happening while the important push for universal access to water and sanitation services -- despite the impressive gains over the past several decades -- remains an unfinished agenda.
- What's Working: Sustainable Development Goals
- sustainable development goals
- World Water Week 2015
- water and energy nexus
- water and climate nexus
- thirsty agriculture
- thirsty energy
- Energy Security
- food security
- water security
- Urban Development
- Climate Change
- Agriculture and Rural Development
Peak oil has generated headlines in recent years, but the real threat to our future is peak water. There are substitutes for oil, but not for water.
For those of us who were teenagers in the 1980s, it is difficult not to remember the famous Live record released in 1983 by the reggae band UB40. Almost 30 years later I am still listening to their sound. As we mark World Food Day on October 16, I am reminded of one of the songs in that album, Food for Thought. In fact, I still remember some of the lyrics: "Eat and drink rejoicing, joy is here to stay." Drink, eat, and rejoice – a reminder of the link between water, food, happiness, well-being, and prosperity.