AMERICAN
METEOROLOGICAL
SOCIETY
Weather, Climate, and Society
EARLY ONLINE RELEASE
This is a preliminary PDF of the author-produced
manuscript that has been peer-reviewed and
accepted for publication. Since it is being posted
so soon after acceptance, it has not yet been
copyedited, formatted, or processed by AMS
Publications. This preliminary version of the
manuscript may be downloaded, distributed, and
cited, but please be aware that there will be visual
differences and possibly some content differences
between this version and the final published version.
The DOI for this manuscript is doi: 10.1175/WCAS-D-14-00005.1
The final published version of this manuscript will replace the
preliminary version at the above DOI once it is available.
If you would like to cite this EOR in a separate work, please use the following full
citation:
Schultz, D., and V. Jankovic, 2014: Climate Change and Resilience to Weather
Events. Wea. Climate Soc. doi:10.1175/WCAS-D-14-00005.1, in press.
© 2014 American Meteorological Society
MONTH 2014
EDITORIAL
EDITORIAL
Climate Change and Resilience to Weather Events
High-impact weather events are often accompanied in scientific, media, and policy circles
by discussion of whether the events were associated with or enhanced by anthropogenic climate change. Although such discussion may be interesting scientifically, weather events will
happen whether or not climate change is occurring—reducing carbon dioxide emissions will
not eliminate the damage from tornadoes. Society, however, can choose to respond in a
way to both reduce anthropogenic climate change and develop resilience to individual weather
events.
One of the long-term effects of climate change is predicted to be an increase in the intensity
and frequency of many high-impact weather events. Thus, reducing greenhouse gas emissions
is usually seen to be the response to the problem. Indeed, reducing humanity’s impact on our
planet should be pursued as a matter of highest priority. Yet, fixing the planet often receives
more emphasis than being resilient to individual weather events. Three points suggest that
such emphasis on climate change is misdirected.
First, trying to identify an anthropogenic climate change signal from a time series of the
occurrence and intensity of high-impact weather is difficult and in some cases may not be
possible with the short periods of available records (e.g., tornadoes and hurricanes). Specifically, apart from some kind of tipping point that radically changes Earth’s climate and
weather, the time series of interannual variability of high-impact weather is often much larger
than the anticipated changes due to climate change. Where the socioeconomic consequences
of increases in intensity of high-impact weather due to climate change can be calculated, they
are generally a fraction of the costs incurred by poor weather resilience. For example, one
calculation indicates that only 13% more deaths, relative to the 1990 levels, would result by
2085 from even the warmest Intergovernmental Panel on Climate Change (IPCC) scenario
(Goklany 2012).
Second, the time scale at which most individuals and businesses plan is more consistent with
weather scales (a few weeks to a few years) than climate scales (decades). Of course, large
public investments (e.g., dams and flood defenses) must account for how weather might
change in the future, but this does not prevent addressing socioeconomic vulnerability to highimpact weather events.
Third, many situations in which the costs of disasters have been increasing have been attributed to socioeconomic factors independent from anthropogenic climate change (e.g., more
high-value assets are exposed to weather-related losses). For example, avoiding construction
in floodplains, implementing strong building codes, and increasing preparedness can make
society more resilient to weather events. Had New Orleans been prepared enough to
withstand Hurricane Katrina (repairs estimated to have cost just a few billion dollars), the
estimated losses exceeding $100 billion (as well as the over 1400 deaths) would
have been substantially less. Further compounding this problem is that finding money
Corresponding author address: Prof. David M. Schultz, Centre for Atmospheric Science, School of Earth, Atmospheric and
Environmental Sciences, University of Manchester, Simon Building, Oxford Road, Manchester M13 9PL, United Kingdom.
E-mail: david.schultz@manchester.ac.uk
DOI: 10.1175/WCAS-D-14-00005.1
Ó 2014 American Meteorological Society
1
2
WEATHER, CLIMATE, AND SOCIETY
for recovery is easier than spending on prevention, even if the costs of recovery are
much higher.
In the past, society responded to weather disasters with calls for greater resilience.
Today, however, public awareness of anthropogenic climate change has given the
climate time scales far greater importance than that of the weather time scales. On
the one hand, this bias has a tendency to diminish the political dedication to prevention from current high-impact weather events, regardless of whether they are caused
or intensified by the anthropogenic influences. In fact, one consequence of linking
high-impact weather events to emissions of greenhouse gases is that storms will continue to occur, even after emissions have been reduced. The resulting disappointment may lead to questions about the validity of strategies designed for protecting
society from both climate and weather threats. One attraction of preparing for highimpact weather is that weather will occur regardless of the trajectory of climate change,
and thus the value of preparation is not contingent upon any particular emission
scenario.
On the other hand, the beneficial effects of carbon mitigation might be diminished by the
increasing environmental vulnerability due to poor infrastructures, inadequate land use, air
pollution, lack of risk assessment and preparedness, poor sanitation, and urban planning.
Rapid industrialization and urban sprawl usually overshadow the positive effects of any
urban carbon mitigation policies. Reducing vulnerability to high-impact weather events,
disaster management, and adaptive governance more generally ought to be part of longterm, sustainable, development planning in both developed and developing countries (e.g.,
Brunner and Lynch 2010). Increased capacity to manage high-impact weather can reduce the
economic, social, and human damage and, eventually, reduce investments in terms of borrowing money from lending agencies.
Fortunately, such steps taken to protect society from the weather can protect the planet
as well. Whether through improving weather forecasts, increasing preparedness, or
building better infrastructure, these steps can increase resilience and reduce carbon dioxide
emissions. For example, greening neighborhoods or painting roofs lighter colors will both reduce the urban heat island effect and reduce carbon dioxide emissions through reduced airconditioning costs. For a second example, making cities more resistant to the damage from
landfalling tropical cyclones would reduce the carbon dioxide emissions from rebuilding
devastated areas. Costs to produce a more weather-resilient society will lead to long-term
reductions in carbon emissions. Rather than expecting that reductions in carbon emissions
would reduce our future vulnerability to high-impact weather events, investments in
building resilience and weather preparedness is a no-regret policy that might also have mitigation benefits. Building well-designed cities makes environmental sense, regardless of climate
change.
Linking high-impact weather events with climate change perpetuates the idea that reducing greenhouse gases would be enough to reduce increasingly vulnerable world populations. In our view, this only confuses the public and policy makers as to the
socioeconomic susceptibility to high-impact weather. There is no quick fix, single-cause
solution for the problem of human vulnerability to socioenvironmental change, nor is
there a reasonable prospect of attenuating high-impact weather events. Addressing such
issues would give the world an opportunity to develop a two-pronged policy in climate
security: reducing longer-term risks in conjunction with preventing shorter-term weather
disasters.
Acknowledgements. We thank Editor Henry Huntington for comments that improved this essay. Partial funding for Schultz comes from Grant NE/I005234/1 from
the U.K. Natural Environment Research Council to the Diabatic Influences on Mesoscale Structures in Extratropical Storms (DIAMET) project, part of the Storm Risk
Mitigation Programme.
VOLUME 00
MONTH 2014
EDITORIAL
David M. Schultz
Centre for Atmospheric Science, School of Earth, Atmospheric and Environmental
Sciences, University of Manchester, Manchester, United Kingdom
Vladimir Jankovic
Centre for the History of Science, Technology and Medicine, University of Manchester,
Manchester, United Kingdom
REFERENCES
Brunner, R. D., and A. Lynch, 2010: Adaptive Governance and Climate Change. Amer. Meteor. Soc., 344 pp.
Goklany, I. M., 2012: Is climate change the number one threat to humanity? Wiley Interdiscip. Rev.: Climatic
Change, 3, 489–508, doi:10.1002/wcc.194.
3