Human wellbeing depends on the capacity of the earths natural systems to provide ecosystem goods and services. However, the Millennium Ecosystem Assessment chillingly concludes that unless we take action to mitigate the current decline in ecosystem services, the cost to society will be substantial. In this publication, IUCN defines three key challenges that will need to be addressed in the near future in order to deliver internationally-agreed development goals.
An environmental flow is the water regime provided within a river, wetland or coastal zone to maintain ecosystems and their benefits where there are competing water uses and where flows are regulated. Pioneering efforts in South Africa, Australia and the United States have shown that the process to establish them poses great challenges.
