Water

Water is the world’s most precious resource. Water supplies and aquatic ecosystems are increasingly at risk, owing to more frequent and severe drought conditions, growing fresh water demand, and pollution from nutrients and other sources.

More WRI Resources On Water

Water Risk to Business Is No Small Drip

At the World Economic Forum in Davos two weeks ago, I was struck by how often the issue of water risk was raised by business executives. As the global economic turmoil is receding, many CEOs and global leaders are turning to other threats—and water is high on the list. For the second year in a row, water crises were named among the top four global risks at the WEF.

It’s easy to see why. More than 1.2 billion people already face water scarcity. By 2025, two-thirds of the world population will experience water stress. That’s largely due to population increase and climate change, but also behavior patterns: Water use grew twice as fast as population growth in the 20th century. The “food-water-energy nexus” was one of the top four megatrends to watch in the recently released Global Trends 2030 report by the U.S. National Intelligence Council.

CEOs increasingly recognize that water is essential for their business models and economic growth. Disrupted availability of affordable, clean water leads to business interruptions, increased commodity costs, and reduced earnings. The extreme drought gripping much of the United States is likely to cost up to one percent of GDP, potentially making it the costliest natural disaster in U.S. history.

The world is on track to become a very different place in the next two decades. Per capita income levels are rising, the global middle class is expanding, and the population is set to hit 8.3 billion people by 2030. At the same time, urbanization is happening at an accelerated pace—the volume of urban construction over the next 40 years could equal that which has occurred throughout history to date.

While these projections would bring benefits like reduced poverty and individual empowerment, they have serious implications for the world’s natural resources. Global growth will likely increase the demand for food, water, and energy by 35, 40, and 50 percent respectively by 2030. Add continued climate change to the equation, and the struggle for resources only becomes more intense.

These are just a few of the estimates included in the new Global Trends 2030: Alternative Worlds report from the U.S. National Intelligence Council (NIC) that was released last month. The assessment, which the NIC puts out every four years, reflects in-depth research on trends and geopolitical changes that may unfold in the next 15-20 years—everything from urbanization to conflict to resource scarcity.

Assessments like the NIC’s are invaluable in providing decision makers with forward-looking insights and analysis. But while the report offers a glimpse into the future, what’s more important is how we respond today to the questions these “megatrends” raise.

Some people say that water is the oil of the 21st Century. If only water were that simple.

Water is very complicated. It’s affected by large-scale issues like climate change and globalization. International commerce moves virtual water (the water it takes to grow or produce a product) from farms in Brazil to grocery stores in China and Egypt.

But water is also inherently local, impacted by site-specific weather, geography, and other environmental and land use conditions. Managing and using water, then, requires understanding it in its full geographic context.

Today, WRI is launching its new Aqueduct mapping tool to do just that. Aqueduct provides businesses, governments, and other decision makers with the highest-resolution, most up-to-date data on water risk across the globe. Armed with this information, these decision-makers can better understand how water risk impacts them—and hopefully, take actions to improve water security.

Water is a scarce resource in India, especially in the state of Maharashtra, where most rainfall is limited to the monsoon season from June through September. The Government of India has long promoted a Participatory Watershed Development (PWD) approach to deal with this scarcity, focusing on technical and social interventions to restore barren landscapes, boost agricultural production, and improve livelihoods.

The PWD approach is now facing a major challenge: climate change. Over the past dozen years, India has experienced four major droughts. This past year, the state of Maharashtra received only 82 percent of its average monsoon rainfall; some districts received only 25-50 percent of average rainfall. For agrarian villages located in arid and semi-arid regions of Maharashtra, any small reduction in rainfall can compromise agricultural yields, drinking water supplies, and, really, the community’s entire existence. In the face of unabated climate change, reductions in monsoon rainfall are likely to become increasingly common.

But there are solutions. The Watershed Organisation Trust (WOTR) is one organization that’s exploring ways to safeguard livelihoods in these regions in the face of changing environmental conditions and increasing water shortages.

This post was co-written with James Mulligan, Executive Director at Green Community Ventures.

Natural ecosystems provide essential services for our communities. Forests and wetlands, for example, filter the water we drink, protect neighborhoods from floods and droughts, and shade aquatic habitat for fish populations.

While nature provides this “green infrastructure,” water utilities and other decision-makers often attempt to replicate these services with concrete-and-steel “gray infrastructure”—usually at a much greater cost. Particularly where the equivalent natural ecosystems are degraded, we build filtration plants to clean water, reservoirs to regulate water flow, and mechanical chillers to protect fish from increasing stream temperatures. And even though healthy ecosystems can reduce the operational costs of these structures, investing in restoring or enhancing various types of green infrastructure is rarely pursued—either as a substitute for or complement to gray infrastructure.

Despite America’s history of reliance on gray infrastructure, now is a critical time to tip the scales in favor of a green infrastructure approach to water-resource management. Investing in the conservation and improved management of natural ecosystems to secure and protect water systems can keep costs down and create jobs. Green infrastructure can also provide a suite of co-benefits for the air we breathe, the places we play, the wildlife we share our landscapes with, and the climate we live in.

This post was co-authored with Jose Carlos Lombana, co-founder of Sistemas de Captación de Agua Pluvial (SCAP).

This story is part of the “Aqueduct Sneak Peek” series. Aqueduct Sneak Peek provides an early look at how various stakeholders can use Aqueduct’s updated global water risk maps, which will be released in January 2013. Read more posts in this series.

A study by scientists at The Nature Conservancy and other institutions estimates that by 2050, more than 1 billion city dwellers may be living on less than one bathtub’s worth of water a day. While this and other water risks are undeniably troubling, they can be overcome in many cases. With the right data and innovation, entrepreneurs can turn these risks into business opportunities.

Rainwater Harvesting Solutions in Mexico City

Mexico City, the biggest metropolis in the Western hemisphere, faces significant water shortages, leaving many domestic, agricultural, and industrial users exposed to severe water-related risks. The city was built on the foundations of the Aztec capital, on the bed of Lake Texcoco. Today, centuries later, its groundwater supplies are rapidly diminishing, and it relies on a network of reservoirs and decaying infrastructure to pump in water from hundreds of miles away. Furthermore, urban growth and climate change are pushing Mexico City’s water supply to the edge. Reservoirs were dangerously low during the 2009 drought, leading the government to cut off water in some areas of the city.

This story is part of the “Aqueduct Sneak Peek” series. Aqueduct Sneak Peek provides an early look at the Aqueduct team’s updated global water risk maps, which will be released in January 2013.

New reports and articles are increasingly pointing to water risk as one of the biggest issues associated with climate change, energy production, food security, and human health. In an effort to better understand how and where these water risks are emerging, WRI published the first-ever Aqueduct water risk map two years ago.

Today, the need for better information on where and how water can create risks for companies, investors, and communities is more apparent than ever. To address this need, the Aqueduct team has been working with our hydrological modeling partner, ISciences, on producing a brand new set of global maps of water risk.

We’ll make this new data available in January 2013. A few of the improvements and refinements that make these new Aqueduct global maps the best available picture of water risk around the world include:

This story is part of the “Aqueduct Sneak Peek” series. Aqueduct Sneak Peek provides an early look at the Aqueduct team’s updated global water risk maps, which will be released in January 2013.

The days leading up to Hurricane Sandy’s landfall were a testament to the power of global data systems in helping to understand and manage risks that natural phenomena can create. A vast, worldwide network of weather monitoring stations and sophisticated remote sensing allowed meteorologists to track and predict Sandy’s progress—and give ample warning to those of us in the hurricane’s path.

The map below is one way to visualize the global data network that makes such analysis possible. It shows Integrated Surface Database (ISD) stations, a widely distributed network of weather stations that all report regularly to a centralized hub.

This post is part of a series on World Water Week, an annual event designed to draw attention to and discuss global water issues. Read more posts in this series.

This piece was co-authored by Anne-Leonore Boffi, Program Officer with the WBCSD, and Ruth Mathews, Executive Director of the Water Footprint Network.

The unsustainable use of water and the risks it creates is on the minds of many of the thousands of water experts from the corporate, NGO, and government worlds who convened in Stockholm this week for World Water Week. As companies increasingly view water as not just an environmental issue, but a complex driver of very real risks to their businesses, the appetite for better information on how to manage these risks and become good water stewards has grown substantially. In fact, many organizations have put tremendous effort into developing tools and methodologies and compiling the best publicly available water information so that companies can manage their water use in sustainable, efficient, and equitable ways.

This week in Stockholm, teams from the World Business Council for Sustainable Development (WBCSD), World Resources Institute (WRI), and Water Footprint Network (WFN) convened a seminar called “Towards Sustainability: Harmonising Water Tools for Better Water Governance”. The event focused on providing an overview of each tool and highlighting areas requiring better harmonization and coordination efforts to help drive companies towards better management and stewardship of water resources. The seminar also included Ceres, DEG (a German development finance institution), World Wildlife Fund (WWF), and the UN CEO Water Mandate. The goal of the seminar was to explain how our organizations are striving to provide companies with a clear, easy-to- understand, and compatible set of water management tools—not a variety of competing efforts, but rather an organized and coordinated front.

Tools to Improve Water Quality

This post is part of a series on World Water Week, an annual event designed to draw attention to and discuss global water issues. Read more posts in this series.

Agricultural production often comes at the expense of water quality. As my colleague, Mindy Selman, noted in a recent blog post, “Agriculture is the leading source of nutrient pollution in waterways—a situation that’s expected to worsen as the global population increases and the demand for food grows.”

But food security shouldn’t come at the expense of water quality—and in fact, it doesn’t have to. This is a topic I’m discussing at a World Water Week side event, “Securing Water Quality While Providing Food Security: The Nutrient Question.” Through the use of effective tools and strategies, we have the power to uphold water quality while still feeding a population that’s expected to reach 9 billion by 2050.