Why We Need to Think Bigger to Protect the World’s Water

by Giulio Boccaletti, Chief Strategy Officer and Global Managing Director
The Nature Conservancy

Water for people or nature is a false choice

The Blue Marble — Earth as seen by Apollo 17 © NASA

When the first photo of Earth was taken from Apollo 17 in 1972, few could understand the cultural impact it would have. The Blue Marble, this singular sphere floating in deep space, was the perfect symbol for the fragility of our environment and mankind’s own existence.

Unfortunately, that existence has only grown more fragile. Since the 1990’s human society has begun crossing planetary boundaries of great significance — environmental lines in the sand, if you will, from climate change to pollution — that represent a new regime in our relationship with the planet we depend on.

Though often understood as “environmental” problems, these changes also pose a threat to development and human well-being, as food and water security grow more uncertain and storms and other natural disasters grow more intense with climate change. It is increasingly clear that it is impossible to separate environmental concerns from global advancement — and that addressing both will require us to scale up our solutions.

Chania Falls in Thika near Nairobi in the Upper Tana Watershed, Kenya. The Nature Conservancy is working to protect the Upper Tana Watershed in Kenya and provide cleaner, more reliable water for Nairobi. Photo © Nick Hall

This is perhaps most evident when it comes to water. Water is crucial for drinking, sanitation, food and energy production, as well as underpinning all economic activity. But growing populations and limited water resources are increasingly in conflict, especially as the climate and hydrological cycles become further destabilized. This has had profound and disturbing effects: between 2013 and 2015, over 22 million people were displaced by floods, and almost 30 million were displaced by storms. Our fight with the hydrological cycle has produced as many internal displacements as conflicts have produced refugees.

The consequences are stark for the environment, too — over the last four decades, we’ve lost over three-quarters of all species dependent on freshwater systems as these ecosystems have been degraded by development and river systems have been overdrawn for agriculture or broken up by dams.

Faced with problems of this magnitude, it’s understandable that some communities look to our finite water resources and conclude that protecting ecosystems is less important than securing water for human use. But “water for people or water for nature” is a false choice — the solution to water security requires much, much bigger thinking.

A siphon pipe transfers water from Frenchmans Creek into a wetland system in the Murray-Darling River Basin, where The Nature Conservancy has purchased water rights. Photo © Andrew Peacock

If fact, when we shift our thinking from the community-scale to the system-scale — such as an entire river basin — it becomes clear that water security and ecological integrity are directly related. Clear-cutting forests for agriculture, for example, is obviously an environmental concern, but it can also wreak havoc on water utility systems, as the resulting sediment and fertilizer runoff wash into municipal water sources. If we zoom out from the municipal level and look at the entire watershed, it becomes evident that investing in healthy forests to filter water and changing agricultural land-use practices to reduce nutrient run-off is one of the most efficient ways to secure clean, reliable water flows.

The idea that solutions that make sense at an individual project level may need to be different when implemented at scale is not new in development literature. Over the last thirty years, the global development community has acknowledged that often the best answer is not simply the sum of many small solutions — true impact at scale requires thinking differently. Global health offers one example: health practitioners have gone from designing responses solely at a community level, to engaging in the delivery of medication to entire populations, to facilitating the creation of national health systems.

Each of these steps has entailed a shift in the paradigm that framed the solution — from placing medical personnel in the community; to delivering vaccines reliably through production, supply chains and disease management; to constructing institutions that can deliver a system of primary care. At each stage, the metrics of success have changed, shifting from actions to outcomes, and health practitioners have expanded their tool kits, moving beyond community levers to incorporate market and policy-change levers.

Likewise, the scale of the challenges we face in water security and other environmental issues dictates that solutions, too, must be approached from a certain scale. Sustainable water security is not complex because we don’t know the answer. It is complex because its delivery requires tackling problems at a scale that involves not just projects at a community level but changes in policy and in the behavior of specific sectors, market actors and institutions.

A portion of the old Howland Dam on the Penobscot River in Howland, Maine. This is one of several dams that will be removed, or in this case altered, to restore the Penobscot to a more natural flow. Photo © Bridget Besaw

River infrastructure offers an example. Hydropower is an important source of low-carbon electricity for many nations, but the development of hydropower and multi-purpose dams is destroying river connectivity — a key ecological attribute — at an unprecedented rate. From a community point of view, the only question may be whether the benefits of a particular dam outweigh its costs, financial or otherwise. But the community view is incomplete; research from the Nature Conservancy demonstrates that the performance of a dam is connected to all the other dams on that river and to the functioning of the river itself.

In fact, when government and corporate actors work alongside scientists to site and develop dams in the context of a river’s ecology, it is possible to maintain greater connectivity throughout the river basin — which supports healthier fish stocks and the tens of millions of people who depend on them — while also limiting sedimentation and other risks to dams, reducing costs and increasing performance over time. It is in everyone’s interest to take river ecology into account when implementing new infrastructure, but this is only apparent if we approach the issue from the right scale.

Water markets offer another example of how different sectors can unlock scalable water solutions. More than 70 percent of the world’s freshwater resources are currently used for agriculture, but when cities and other water users are able to lease or purchase water rights from farmers, farmers have an incentive to improve their water efficiency. Furthermore, environmental groups can also purchase water to restore environmental flows, which in turn sustain the long-term health of the regional ecosystems that many farmers depend on.

Fifteen years after the Blue Marble photograph made it into our visual canon, Gro Harlem Brundtland, the former prime minister of Norway and first chair of the World Commission on Environment and Development, wrote these words in the commission’s Our Common Future report:

“The environment does not exist as a sphere separate from human actions, ambitions and needs, and attempts to defend it in isolation from human concerns have given the very word environment a connotation of naivety in some political circles. The word ‘development’ has also been narrowed by some into a very limited focus, along the lines of ‘what poor nations should do to become richer.’ … But the ‘environment’ is where we all live; and ‘development’ is what we all do in attempting to improve our lot within that abode. The two are inseparable.”

Brundtland’s words represent a challenge, but also an opportunity that we must embrace today. Despite the magnitude of the challenges we face, the scientific evidence shows that we can protect the environment and advance development, if we consider the challenges and solutions at a much greater scale. If we are to deliver water security to meet the demands of our growing planet, we must heed her words now more than ever.


This article was originally published by the World Economic Forum.

Giulio Boccaletti, Ph.D. is the Chief Strategy Officer & Global Managing Director, Water at The Nature Conservancy. Explore the Conservancy’s latest thinking, science and recommendations on water conservation at Global Solutions.