Pleasant Run is a 27-mile-long waterway that flows through Indianapolis. Despite its bucolic name, it gradually degraded over the past century during a period of unbridled urban development. Sadly, it is now a neglected link in a necklace of parks and boulevards listed on the National Register of Historic Places. Early 20th century urban planner and landscape architect George Edward Kessler designed the green-spaces “to make cities decent places for masses of people to live in.” Now, sprawling city infrastructure and the spread of impermeable surfaces provide few ecological and social services to poor residents of the neighborhood. The parks once offered such amenities. But today Pleasant Run’s interface with people is in the form of health department signs warning against exposure to untreated human waste.
The urban greenway and its watershed — including the surrounding social and ecological activities — are fairly stable and predictable. That condition includes, unfortunately, E. coli contamination when heavy rain causes sewers to overflow during increasingly regular floods. But a group of community leaders and Indiana University researchers is trying to nudge Pleasant Run into a new equilibrium that better serves the people in the area and downstream, even as the climate changes. This new, better equilibrium challenges the popular goal of sustainability, which implies stasis. The dynamism of climate change presents opportunities like transforming Pleasant Run into a new, adaptive system that delivers better outcomes to communities underserved by conservation.
The Clean Water Act mandates that Indianapolis abate stormwater pollution and slow the ever-increasing surges of raw sewage runoff into Pleasant Run after even normal rainfalls. The law mandates treatment before discharging human waste, but the city’s old pipes combine rainwater and sanitary effluent to produce the common problem of combined-sewer overflow. After Indianapolis completes a massive stormwater diversion system to reduce overflows at its wastewater facility, re-engineering Pleasant Run will present an opportunity for making the neighborhood and its residents able to withstand rainfall extremes.
Solving this problem in an enduring manner as the climate changes in coming decades requires understanding the networked social and ecological systems that comprise the community’s people, their housing, workplaces, recreation areas, and schools, and the natural domain they inhabit through the rapidly emerging and evolving concept of resilience. In that regard, SES is a term of art that encompasses the connected social, economic, and environmental relationships involved in such activities as managing farming or manufacturing or, in the case of Pleasant Run, urban stormwater and sewage. Applying resilience to established legal objectives is often assumed to mean maintaining existing conditions by resisting disruptive transformation — the upsetting of the law’s settled expectations. For instance, the Environmental Protection Agency and Fish and Wildlife Service pledge to promote greater resilience in response to climate change (and its more frequent downpours) but generally their specific prescriptions aim to bolster resistance to change. Pleasant Run shows that resilience is equally helpful in framing a program that facilitates positive transformation to new conditions that better serve communities.
Cities like Indianapolis will be the testing grounds for transformative management that aims to shift the role of urban waterways from hidden pipes or open sewers to neighborhood gathering grounds that produce a diversity of goods and services, from picnic areas to community gardens, as well as filtering rainwater and preserving water quality downstream. The promise for environmental law is a shift from objectives that benefit relatively few to new systems that benefit others previously left behind in the narrative of sustainability, including poor and minority neighborhoods that share watersheds. To the extent compliance with the CWA motivates these experiments in urban watershed governance, it is an example of a static environmental law pushing for dynamic changes to an SES.
Resilience describes the continuity of relationships within a system. In 1973 the ecologist Buzz Holling defined resilience as “a measure of the ability of these systems to absorb changes” yet still provide the same function, structure, and identity. The system human-bicycle perfectly illustrates how resilience works and how it may be adapted to address today’s environmental problems. This system ordinarily has two equilibrium states: upright while moving forward or stationary while flat on the ground. The greater the resilience of the human-bicycle forward-motion state, the greater the bump the system can absorb without causing the rider to fall, triggering a phase change to the stationary, flat-on-the-ground state. The design of the bike and the resilience it offered riders on bumpy terrain remained static for well over a century.
But then ingenuity improved human-bike resilience. Forty years ago in Northern California, cyclists began to travel on natural trails, where they encountered rocks and roots that would dislodge the rider of a conventional bicycle. They responded by inventing the mountain bike. It created a whole new industry supplying resilience to riders who choose to leave the system of paved roads and travel to new destinations impossible on an ordinary bicycle. Engineering the system to increase the resilience of the upright, forward-motion state required shock absorbers and disk brakes that enable a mountain bike to smoothly travel a rocky road.
Some climate-change adaptation measures, such as creating coastal berms and buffers, aim similarly to strengthen the resilience of the SES behind the buffers to resist destructive flooding. But resilience in an SES doesn’t have to mean bouncing back to a prior state. Instead, managing resilience may intentionally transform the SES to a new equilibrium condition, one offering new opportunities to communities, many of them disadvantaged by the current equilibrium state.
While it is tempting to dismiss resilience as a meaningless slogan, something like “sound science” a decade ago, there seems no better concept to address the phase changes threatened by climate disruption, which will dash centuries-old settled expectations. Enhancing resilience to resist change is like developing a mountain bike for the bumpy climate ride ahead. Adaptive management, in turn, is the rider’s skill in response to the terrain, deploying the bike’s shocks and brakes to achieve her goals; more on this concept later.
Resilience as an overarching theme for environmental law has other benefits. It can counteract centrifugal tendencies of an otherwise fragmented collection of statutes and doctrines — a longtime goal of environmental reformers. In part because of its defensive grasping for some core principle to claim, environmental law tends toward over-eager embrace of the latest trends. Thus, in the 1980s, sustainability (or sustainable development in the international law context) became a common theme of environmental reform proposals.
Sustainability is a helpful prompt for identifying overexploitation of resources before they crash and for intergenerational equity. But it is opaque when it comes to understanding just what is to be sustained. The very ambiguity that allowed sustainable development to be widely hailed — that it could be interpreted by different interests as maintaining, even advancing, their own needs — undermines its usefulness. Sustaining business productivity, ecological services, and social goods like health care and schools all at once often proves an impossible balancing act. Something has to give. In practice, the short-term exigencies of economic productivity overshadow environmental and other social aims.
In other words, sustainability assumes both that we understand what can be sustained, and that we have the capacity to carry out what is necessary to maintain those conditions indefinitely. But that assumption is not justifiable for the vast majority of human interactions with the environment, especially when that environment is itself changing and humanity is plundering its finite resources. In coining the term SES, Elinor Ostrom extended Holling’s ecological resilience concept by observing the order in the relationship between and among the environment and the people who shape and use it. She generalized the ecological principle to describe resilience as “the amount of disruption needed to transform a system from one stability domain (characterized by a configuration of mutually reinforcing processes and structures) to another.”
Rather than simplify SES into sustained outputs, resilience recognizes that changing conditions (and our understanding of them) are relatively unpredictable. Disruptive change can occur quickly and nonlinearly. As complex as our economy or an ecosystem may be, the interactions between the two in an SES complicates the picture even more. We simply can’t easily forecast when phase changes will come or their direction and magnitude.
For instance, kelp forests are biologically diverse, structurally complex, and highly productive ecosystems that occur in mid-latitude coastal waters that are cold and rocky. When fishing depletes the population of top predators, herbivorous sea urchins may proliferate and eat enough kelp to crash the ecosystem and produce an entirely different state. This occurred along the Pacific Coast after sea otters largely disappeared. But, in the western North Atlantic, after the commercial fishing industry decimated predatory fishes, especially cod, large crabs thrived in the vacant niche. The crabs began reducing the urchin populations, keeping the kelp forests intact. Such are the unpredictable outcomes of social-ecological systems, which make resilience difficult to manage.
The speed with which legal institutions and statutes integrate adaptive management will indicate the degree to which resilience emerges successfully as a framework for environmental law. The example of the kelp forests shows that law needs to recognize that humans always alter nature and are altered by it. Sometimes sustainability and resilience objectives will correspond to the same procedures and outcomes. For instance, the recovery and maintenance of migratory waterfowl is among the greatest sustainability accomplishments of 20th century America. It is also a testament to adaptive resilience.
The tool of adaptive management made the difference in waterfowl survival. It succeeded in maintaining bird populations and hunting within a consistent range of variation. Adaptive management treats actions or policies (such as hunting quotas for waterfowl) as experiments to test hypotheses about how the SES responds to interventions. Adaptive management requires breathing space to allow learning to occur and actions to be revised in response to monitoring. Federal agencies have succeeded in undertaking adaptive management within the framework of the National Environmental Policy Act’s mandates, including taking the fabled “hard look” at proposed actions and alternatives. But it is an awkward fit with the comprehensive rationality and finality of administrative law.
Past success — such as in calibrating hunting rules to maintain waterfowl populations — is no longer an indicator of the future. Prairie potholes of the upper Great Plains, the world’s most productive migratory waterfowl breeding habitat, are drying up because the agricultural economy demands more drainage and because climatic change reduces available precipitation. Law influences drainage through agricultural policy in the Farm Bills and environmental regulation under statutes like the CWA.
At the same time, wintering habitat south of the United States is disappearing under human population pressure. Signals that trigger seasonal bird migrations, such as the length of day, are no longer in sync with food sources. Insect larvae now emerge earlier in the warming spring, before the birds can arrive to eat them. This weakens the ability of birds to survive their journey to breeding grounds and threatens croplands. On top of all that, the number of American bird hunters has declined over the past forty years. That trend results in less habitat-conservation funding generated through mandatory “duck stamps” that the hunters must purchase and affix to their hunting licenses.
Some North American bird migrations may well be an example of a social and ecological system nearing a resilience limit. Without understanding the resilience of the migratory bird SES, efforts to maintain populations will suffer from uncoordinated approaches or neglect of how solutions redistribute social costs and benefits. The NEPA action-forcing mechanism of environmental impact analysis seeks to integrate many different fields of study to create a comprehensive understanding of all the consequences from a proposed course of action (and its alternatives). Today, we need analyses that retain the social-ecological integration of NEPA but provide more iterative adjustments than the front-loaded requirements under that statute and the Administrative Procedure Act.
System resilience is not always good or bad from the point of view of social goals. Most people would say that we should try to maintain North American bird migration in its current state by enhancing resilience through such practices as better water management in the upper Great Plains. But the organizing principle of resilience may lead us to social choices that push other systems across phase-change boundaries — crashing the bike in our analogy. Pathologically resilient systems can saddle management with institutions not only resistant to change but unable to withstand change. The doomed Everglades seems trapped in a web of water governance institutions that thwart the adaptive changes necessary to maintain the unique ecosystem. Yet, pathological resilience sometimes yields to transformation. A legal objective, such as the treatment mandate of the CWA, may promote an action to transform a system into another state, such as the re-plumbing of Pleasant Run. That is like using a mountain bike to instead successfully navigate along a better path.
In practice, conservation often focuses solely on resisting the transformative effects of change even when transformation seems inevitable, such as in the context of the threat to coastal wetlands from sea-level rise. Equating resilience in environmental law with strengthening SESs by resisting phase changes is a blinkered misunderstanding of resilience as sustainability. Instead, adaptive governance to promote transformation will become increasingly important, and not just in ill-functioning urban watersheds. Perhaps our greatest current environmental challenge is decarbonizing energy systems. Resilient approaches to address the challenge, such as ELI’s Deep Decarbonization Pathways Project, employ law reform to drive a transformation in the SES of energy production and use.
Whether at the scale of a local watershed or a national energy system, transformative governance nourishes hope to people previously excluded from environmental decisionmaking. Emphasizing that environmental law is for people — meeting their wants and resolving their disputes — the concept of SES resilience steers away from dualist notions of nature versus society that seldom help the environmentalist cause. Greg Siekaniec, Alaska regional director of the Fish and Wildlife Service, recently commented on authorizing oil leasing in the Arctic National Wildlife Refuge. He said that America’s refuges are dedicated to “wildlife conservation over human use.” A resilience framework would consider wildlife conservation to be an objective for human use. Where dualism sets up false choices, SES links wildlife conservation to human interests.
Isolating the social from the ecological led the Idaho Supreme Court to deny federal reserved water rights for Deer Flat National Wildlife Refuge. Federal public land law reserves to the United States implied water rights needed to avoid frustration of the primary purpose for creating the refuge. President Franklin D. Roosevelt established Deer Flat Refuge to furnish breeding and resting grounds for native birds on islands in the Snake River. As part of Idaho’s adjudication of water rights on the Snake, the court rejected the claim that the reservation required enough water to flow through the river by the islands, during bird breeding season, to ensure that nests remain isolated from the banks. Without those instream flow rights, irrigation upstream of the refuge sometimes lowers water so much that the islands link to the mainland, subjecting nesting birds to predators.
The court held that denying the water rights and allowing the land bridges to form between the islands and the river banks would not defeat the primary purpose of the refuge. It justified its position by explaining that the president intended the refuge to benefit humans as the primary focus. The court wrote that it is “inconceivable that President Roosevelt . . . intended to give preference to waterfowl, or any other migratory bird, over people.” Really, though, the judges shifted the Snake River SES from serving some people who benefit from birds to other people who benefit from more irrigation diversions.
Severing conservation from benefits to people misunderstands the role of wildlife in environmental law. Resilience as an organizing principle of environmental law instead makes it easier to see how the two are inseparable. Hunters of caribou and waterfowl well south of the Arctic National Wildlife Refuge breeding grounds are part of that refuge’s SES. So are birdwatchers and others who enjoy wildlife observation. And, we should not discount the role of wildlife refuges in supporting agriculture itself, by sustaining birds that reduce crop loss by eating insect pests.
The major challenge to resilience as an organizing framework is that the legal fidelity to finality and security comes from real social demands. People like stability. Adults delight when children experience the same parks and fishing streams that they recall from their youth. Lenders want assurances that their investments will be protected from environmental variability. How can we reconcile those — sometimes unrealistic — demands with the fluid adaptation of resilience? And if we do that, what happens to our yearning for sustainability?
A hallmark of system resilience is the capacity to maintain a high level of consistency of behavioral structure in the face of a dynamic environment. That is why it can be easy to confuse resilience with stability. For instance, Pleasant Run currently provides consistently low services to residents in its vicinity. They would prefer a different equilibrium state that allows their children to safely play in the parks surrounding the creek. That is why transformation of the Pleasant Run SES is not just an exciting research or engineering project. It is an experiment in environmental law to better serve citizens.
Other dynamic changes, such as the depletion of species in kelp forests, are unintentional but will nonetheless push systems into new equilibria generating very different goods and services. Resilience offers tools to help us grapple with environmental variability as former standards, such as historical benchmarks (e.g., 100-year floods), become unreliable. High variability and low predictability are probably the greatest challenges for maintaining resilience and adaptive capacity in environmental law. We need to manage for human objectives, but we cannot expect success at every turn. What was natural, such as a particular flood frequency, or native, such as a particular set of invertebrate species, is no longer a reliable guide for management. Resilience, more than sustainability, reminds people that change cannot always be controlled. Change may arrive in sudden bursts creating what California Governor Jerry Brown called “a new abnormal” to describe the 2018 wildfires in his state. Ecosystems may absorb more and more stress and continue to produce services — until they flip into a different state, perhaps in a short time frame. Like wrecking a bike after hitting a rock that is too big for the suspension to handle.
Victor Flatt and Rob Verchick have lamented the repeated use of the word unprecedented in press coverage of Hurricane Harvey. In fact, Texas had already experienced a 40 percent increase in intense rainfall from storms over the past century. In other words, Harvey is the new normal even if, strictly speaking, it lacks a historical precedent. Shortly after Harvey, Hurricane Irma roared into Florida, breaking apart three construction cranes that damaged property as they fell. A decade ago, a state court overturned an attempt by Miami-Dade County to strengthen its regulation of tower cranes, which are currently designed to withstand winds up to 145 miles per hour. The contractors for one of the buildings where Irma destroyed the cranes called the storm “unprecedented” in an effort to shrug off responsibility. Yet, Irma is consistent with the new atmospheric conditions.
There is some hope for law to consider softening its demand for stability. Over the long-term, even the common law shows a willingness to bend to new conditions. Many historians describe the 19th century shift in riparian water rights from a natural flow guarantee to socially contingent reasonable use as an illustration of the common law’s accommodating economic imperatives, such as the industrial revolution in a landscape transformed by hydropower mills. Where and when resistance to phase changes in the SES is futile, resilient law can concentrate on steering a transition from one equilibrium state into another with the least possible collateral damage.
Stasis as implied by sustainability is not an attractive social objective for those repressed by discrimination or poverty. The Indianapolis residents in the vicinity of Pleasant Run may prefer transformation because they see a more prosperous and equitable future under a different social-ecological regime. The possibility of transformation in a resilience framework may help expand the constituency for environmental law to new supporters who can envision how their lives would be improved through adaptive governance rather than the siren call of sustainability. It opens legal debates to new voices, as advocated by environmental justice reformers.
Resilient environmental law must include the option of adaptive transformation of social and ecological systems and alter governance that normally cherishes sustainability. Environmental law, long confined to its own, specialized corridors of power, will be stretched thin to accommodate such challenges. Natural resources agencies, in particular, are generally comfortable with manipulating the ecological side of the SES. They are less willing to address the social dimensions because these elements are outside of their expertise and because their political power generally does not extend that far. Yet, resilient environmental law will need to focus more on social transformations. Very little legal analysis examines this aspect of resilient law, yet better consideration of social change must be a priority for future research. It holds promise to grow the constituency of Americans who recognize how they benefit from environmental law.
Resilience is unlikely to be a flash in the pan. Unlike sustainability, it is a fundamental attribute of the world and not easily confused with outputs only. It is also deeply embedded in the social objectives of climate change adaptation. But the more radical challenges of resilience within our environmental law are twofold.
First, resilience turns away from the futile search for sustainability, or certainty or finality, in systems essentially characterized by high variability and low predictability. Environmental law often serves as our “law of the land” that translates ideas into on-the-ground practices. That translational function demands more candor and experimentation in all environmental decisions. Adaptive management requires softening our commitment to final agency actions and res judicata for the judicial branch.
Therefore, adaptive management poses tremendous challenges for the enforceable substantive standards so closely associated with the 1970s-era magisterial environmental statutes and judicial interpretations of administrative safeguards. Crude rules of thumb, such as bans on discharges without permits or prohibitions on jeopardizing endangered species, must continue to play some role because our knowledge will always fall short of understanding the full repercussions of actions in complex, responsive systems. Burdens of proof in common law and administrative settings need root-to-branch reassessment in light of the resilience framework. Conservation is restraint and thus conservative. But it is not sustainability and should not foreclose transformation. Resilient environmental law helps identify circumstances where sustainability is infeasible or undesirable — or where positive transformation is a possibility, as in the California cyclists who invented a machine able to take them to new destinations.
Second, resilience as a management goal offers a framework for confronting the social drivers of unjust and inadequate outcomes of decades of environmental management that excluded some people. To follow Thoreau and live deliberately today requires we contemplate distributive impacts as moral consequences. Power structures must yield to fairer ways of provisioning social benefits and environmental insults. During World War II, C.S. Lewis wrote that “man’s power over Nature turns out to be a power exercised by some men over other men with Nature as its instrument.” Only the environmental justice strand of environmental law has forthrightly dealt with this longstanding reality. The legal response to environmental change must tackle the social dimension to environmental management. TEF
This article is based on a longer work published in volume 94 of the Indiana Law Journal — Ed.