Cities around the world are making plans, developing agendas, and
articulating goals for urban resilience, but is urban resilience really
possible?
Resilience to what, for what, and
for whom?
Additionally, resilience is being used in many cases as a replacement
for sustainability, which it is not.
Resilience and sustainability need
to be linked, but with care and clarity.
The rise of resilience
Resilience as a planning and managing priority for cities is on a
meteoric rise with NGOs, governments, planners, managers, architects,
designers, social scientists, ecologists, and engineers taking up the
resilience agenda.
The rise of resilience is evidenced by the most
recent resilience conference. In May 2014 the
Resilience Alliance hosted
Resilience 2014,
in Montpellier, France. With over 900 attendees, the diversity of
topics presented by researchers was overwhelming.
If you only look at
the Twitter activity under the hashtag
#Resilience2014 you
can see how the research community is grappling with concepts that vary
from social justice, to planetary boundaries, to unsustainability
(most of the presentations are already
online, so feel free to catch up on this discussion).
Resilience is now being bantered around as sustainability has been
for more than a decade, which is to say with little meaning and often as
a label to fit conveniently on top of pre-existing agendas. In fact,
some argue that resilience has already replaced sustainability as the main concept in the urban discourse.
A recent op-ed in the
New York Times filed shortly after Superstorm
Sandy described
this new wave of resilience thinking as forming major agenda setting in
the United States.
But what is urban resilience, and how does it relate
to sustainability? In recent discussions I’ve had with city planners,
government officials, natural resource managers, researchers, and
practitioners it is clear that what resilience means is definitely
unclear.
Resilience and sustainability
The large overlap in the meaning of the resilience and sustainability
threatens to make both concepts weak. I fear we are quickly losing hold
of the specificity of these influential concepts, and therefore the
power of the resilience approach to improve human wellbeing in urban
contexts.
Other scholars have begun voicing similar concerns.I came away
from the Resilience2014 conference with the realization that we still
have serious work to do to understand how all this research and
discussion on the benefits of urban nature and
ecosystem services relate to the rapid rise of
resilience planning,
resilience design, and
resilient cities initiatives.
I’ve discussed the utility of resilience theory for understanding complex systems
previously in this space, but see also other contributors that have also discussed the relationship between
resilience and sustainability (see
Maddox,
Sanderson,
Mancebo and
Elmqvist for examples).
Defining resilience
More often than not resilience is still mostly discussed as “bouncing
back” from a disturbance.
For example, in the New York City post-Sandy
resilience report, “
A Stronger, More Resilient New York” from
the NYC Special Initiative for Rebuilding and Resiliency, the focus is
very much on rebuilding and recovery, a particular engineering
resilience perspective.
This is not unique to New York, but is quite
common in many other cities around the world. However, the current, more
ecological concept of resilience is not only about bouncing back and
recovery but also about the ability to adapt, often discussed as
adaptive capacity.
In this context resilience is the capacity of a system to experience
shocks while retaining function, structure, feedbacks and, therefore,
identity.
If you buy the idea that we need to be building
social-ecological resilience,
then city planning still has a long way to go towards definition or
understanding of social-ecological resilience that moves beyond recovery
and rebuilding following disturbance.
Additionally, resilience needs to
be linked to sustainability so that the resilience we are trying to
plan and design for actually helps us move towards desired future
sustainable systems states, and not undesirable ones. Current resilience
planning and management efforts may just as likely be locking our urban
systems into undesirable trajectories, away from sustainability.
For example, after Superstorm Sandy hit New York City and the New
Jersey coastline, there was much discussion about large technical
infrastructure solutions for dealing with expected future storm surge
and coastal flooding: for example, closeable sea gates at the narrow
section of the entrance to New York harbor.
But the sea gates proposed
to deal with these serious threats to the social-ecological system of
New York, if implemented, could lock the city into energetically,
resource, and economically unsustainable long-term maintenance costs
that also have serious ecological side effects.
Sea gate proposed in the report, “A Stronger, More Resilient New York” from the NYC Special Initiative for Rebuilding and Resiliency
Spurred by the recognition that we have to plan and design ways to
avoid the level of devastation that Superstorm Sandy inflicted on the
New York City region when faced with future storms, the
Rebuild by Design program
was initiated to articulate visions for climate change resilience in
the New York City region.
The fundamental idea of “rebuilding” is not
necessarily antithetical to resilience, but it underlines the focus
within governments at national and more local levels to think about
resilience to extreme events from a primarily technical and
infrastructural level.
To be fair, improving social-ecological
resilience is difficult, and when thinking about a very large and
complex system like New York City, we can forgive some path dependency,
or inertia, in the discourse and design innovations.
Still, we have to
remain vigilant about the way we use resilience as a concept and a
planning and management priority lest our best intentions lead us
towards more unsustainable futures, despite perhaps achieving some
measure of “resilience”.
Resilience of what? To what? And for whom?
Resilience is understood as the ability to adhere to or lock-in a
specific pathway. The generalizability of this concept means it can be
applied in multiple kinds of systems. It also means that resilience can
both help us achieve desired future states, as well as lock
institutions, political structures, ecosystems, or cities into
undesired, unsustainable system states.
For example, though we rarely
read about it in our scientific discourse, corruption and organized
crime are incredibly resilient, and yet most would agree are not part of
our visions for sustainable futures.
At the same time, given the often enormous inequities in our cities,
we need to be thinking about resilient of what, to what, and perhaps
especially, for whom?
For example, though the installation of a sea gate
in the New York harbor might improve resilience to storm surge and
flooding for some Manhattan and Brooklyn residents, it could have
negative effects in other areas, such as decreasing resilience for
residents and ecosystems in Staten Island, New Jersey, or Long Island.
Urban resilience planning and management has to take seriously a
combined social-ecological perspective so that outcomes contribute to
equity, as well as human well-being and ecological integrity.
Dense urbanity?
Sustainable city initiatives are often those that maximize
efficiency, minimize energy, and reduce redundancy and material use.
Yet, redundancy is one of the hallmarks of a resilience system.
Sustainability goals and resilience goals, if not examined carefully can
be completely at odds with each other.
One conundrum that scholars and planners have not taken seriously is
the problem of urban density.
In the sustainability discourse dense
urban centers are the key to a sustainable future, and yet, the more
dense our urban settlements, the more socially and economically
vulnerable they may be to disturbance whether it is coastal flooding,
disease outbreaks, political unrest, or economic disturbances.
The tight
connectivity within dense urban systems - dense in population, but also
infrastructure, social ties, and biogeochemical and economic flows -
can contribute to resilience, or increase vulnerability.
We must be
careful not to assume density is positive or negative, but carefully
consider, probably on a case-by-case basis, how urban planning,
governance, and management for both resilience and sustainable futures
can ensure resilience goals that overlap and support sustainability
goals.
Harnessing resilience
Understanding urban resilience and urban sustainability as two
concepts that promote a plurality and diversity of solutions to
social-ecological problems implies that urban planning needs to take
on-board yet new metaphors and paradigms to further transform cities (
Wilkinson 2012).
Resilience can reinforce both sustainable and unsustainable
developmental pathways. Harnessing resilience to reinforce system
dynamics that promote sustainability is key to achieving future desired
sustainability states.
Coda: if you want to get involved
Resilience researchers Gary Peterson and Daniel Ospina are asking for
the resilience research community to participate in defining the
important questions for the next wave of resilience research.
They have
created a Google based survey to ask a broad community of researchers
and practitioners interested in resilience what research areas they
believe are key for advancing resilience research.
You can participate
in the forum by clicking
here. Additionally, the Resilience Alliance is launching a new resilience online network in fall 2014.
You can find out more information
here.
___________________________________________________________
Timon
McPhearson is Assistant Professor of Urban Ecology at The New School’s
Tishman Environment and Design Center in New York City where he teaches
urban ecology, sustainability and resilience. Using New York City as a
case study, he conducts theoretical and field-based empirical research
on urban biodiversity and ecosystem services in order to better
understand how to protect, manage, and restore critical ecosystem
functions and services in urban systems.
This article first appeared on The Nature of Cities website. To view it in its natural habitat please click
here.