10.04.2013 Views

Lisø PhD Dissertation Manuscript - NTNU

Lisø PhD Dissertation Manuscript - NTNU

Lisø PhD Dissertation Manuscript - NTNU

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

LisÖ et al.<br />

the exposure to contingencies and stress, and difficulty<br />

in coping with them. Vulnerability thus<br />

has two sides: an external side of risks, shocks<br />

and stress to which an individual or household<br />

is subject: and an internal side which is defencelessness,<br />

meaning a lack of means to cope<br />

without damaging loss.<br />

Coping refers to actions to ameliorate negative consequences<br />

(or capitalise on positive consequences) as<br />

climatic changes take place in order to maintain particular<br />

welfare goals, such as health, life and income<br />

(Eriksen et al., 2002). The concept of exposure is also<br />

linked to social aspects through human reliance on<br />

resources affected by environmental events. A broader<br />

understanding of exposure employed by Downing et al.<br />

(1995) incorporates this internal structural side of<br />

exposure. This internal structural side is often known<br />

as sensitivity, the degree to which a system is affected<br />

by or responsive to climate stimuli (McCarthy et al.,<br />

2001). For example, a society that relies heavily on<br />

agriculture may be more sensitive to climatic fluctuations<br />

than a society that depends solely on industry.<br />

In this paper, the social aspect of exposure is referred<br />

to as sensitivity, to be distinguished from exposure,<br />

which deals exclusively with the physical factors<br />

related to the probability of a climatic event, or change,<br />

taking place.<br />

Norway can be considered a highly exposed country<br />

due to its extreme weather conditions (O’Brien et al.,<br />

2002). The country’s long coastline and steep topography<br />

make it particularly prone to extreme events like<br />

coastal storms, avalanches and landslides. In addition,<br />

Norway may be exposed to changes in autumn rainfall,<br />

and to an increase in the frequency and intensity<br />

of storms due to global warming. While the full range<br />

of impacts resulting from these changes remains uncertain,<br />

it is becoming clear that adaptation to climate<br />

change is necessary and inevitable. Adaptation to the<br />

prevailing climatic conditions has always been crucial<br />

for the viability of Norwegian society, but future<br />

climate changes may expose Norway to new challenges.<br />

Indeed, within the climate impacts literature,<br />

there is growing emphasis on adaptation and the need<br />

to enhance adaptive capacity, both in developed and<br />

developing countries (Kelly and Adger, 2000; Dolan<br />

et al., 2001). Norway’s sensitivity is potentially high<br />

due to the reliance of many of its economic sectors<br />

on climate dependent natural resources (O’Brien et al.,<br />

2002).<br />

What is adaptation?<br />

Adaptation can be described as adjustments in practices,<br />

processes or structures to take into account changing<br />

climate conditions, to moderate potential<br />

damages, or to benefit from opportunities associated<br />

with climate change (McCarthy et al., 2001). It is thus<br />

justified as a way of reducing the negative impacts of<br />

204<br />

climate change and of taking advantage of the opportunities<br />

created by it. While the physical exposure<br />

component of vulnerability can be targeted through<br />

emissions reductions, it is, as argued above, likely to<br />

persist if not increase with climate change. In order<br />

effectively to reduce vulnerability, society’s sensitivity<br />

and coping capacity must be targeted.<br />

Coping can be distinguished from adaptation in that it<br />

refers to the immediate actions in the face of an event<br />

or changes and the ability to maintain welfare, whereas<br />

adaptation refers to long-term adjustments to the<br />

framework within which coping takes place (Adger,<br />

1996; Eriksen et al., 2002). Adaptation can be proactive<br />

and planned, involving conscious measures to meet<br />

anticipated changes, or it can consist of unplanned<br />

adjustments in response to changes that are not consciously<br />

designed to ameliorate the effects of climate<br />

change, but nevertheless affect sensitivity or coping<br />

capacity (Smit et al., 2000; Eriksen et al., 2002).<br />

The built environment literally ‘houses’ economic<br />

activities, individuals and families, as well as society’s<br />

cultural heritage. It is intended to protect life, health<br />

and psychological and social welfare of its inhabitants,<br />

host economic activities and undisturbed production<br />

and sustain aesthetic and cultural values. All these are<br />

central goals of coping capacity in the context of the<br />

built environment and in the face of climate change.<br />

The existence of an insurance system, described in<br />

more detail below, exemplifies a source of coping for<br />

people when a building is damaged by a meteorologically<br />

triggered event.<br />

Potential impacts of climate change on building<br />

performance<br />

Adaptation measures can involve household-level<br />

initiatives, construction industry initiatives and the various<br />

levels of public administration. The impact of climate<br />

change on the built environment will depend on<br />

the design, construction, use and location of buildings<br />

and building clusters. The most important government<br />

regulatory measures to ensure adherence to building<br />

codes and standards are the Technical Regulations<br />

under the Planning and Building Act. These regulations<br />

often refer to the Building Research Design Sheets in<br />

NBI’s Building Research Series, with regards to<br />

solutions-in-principle for building structures. The location<br />

of buildings is regulated by various land-use planning<br />

tools available to governments. These will serve as<br />

valuable adaptation tools for governments as they plan<br />

for climate change. Considerable blame for the massive<br />

damages to buildings in central Europe after the floods<br />

of the summer of 2002 has been placed upon land use<br />

patterns. In an article in New Scientist (2002), it was<br />

argued that shortsighted land management has allowed<br />

global warming to wreak havoc, stating:

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!