Many organisations have started to respond seriously to water risk. They are measuring their water consumption and reducing it. They are examining the water footprint of their core operations and throughout their supply chain. They are also looking more broadly at how to protect biodiversity and ecosystems. Healthy ecosystems are needed to control erosion and water run-off, to provide natural water purification processes and maintain appropriate water flows through a community. The invisibility of the value of biodiversity has encouraged inefficient use or even destruction of the natural capital that is the foundation of our economies, according to a report from The Economics of Ecosystems and Biodiversity (TEEB) study in 2010. Recent attempts to put an economic value on nature’s services valued the world’s wetlands at US$3.4 billion per year and the contribution of insect pollinators to agricultural output at US$190 billion per year. (PDF 1MB)