Derry City and Strabane District CouncilClimate Change Adaptation Plan 2020-2025
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Glossary<br />
Emissions Scenarios<br />
A range of scenarios representing the potential future<br />
greenhouse gas emissions based on human activities including<br />
mitigation. They are presented as Representative Concentration<br />
Pathways (RCP) ranging from no/low mitigation -RCP8.5 to<br />
transformational societal change <strong>and</strong> reduction in emissions -<br />
RCP2.6.<br />
External Forcing<br />
External forcing refers to a forcing agent outside the climate<br />
system causing a change e.g. Volcanic eruptions, solar<br />
variations <strong>and</strong> anthropogenic (Human driven) changes in the<br />
composition of the atmosphere <strong>and</strong> l<strong>and</strong>-use.<br />
Extreme Weather Event<br />
A rare weather event at a particular place <strong>and</strong> time of year.<br />
Flooding<br />
Flooding is the inundation of l<strong>and</strong> that is normally dry from one<br />
of several causes:<br />
Fluvial - river floods<br />
Pluvial - surface water run-off due to large quantities of<br />
rain in a short time<br />
Coastal flooding - flooding from high sea levels, this can<br />
be through a combination of high sea levels <strong>and</strong> storms.<br />
Groundwater - rising levels of subterranean water<br />
Sewerage - caused by blocked sewers.<br />
Global Warming<br />
The gradual increase, observed or projected, in global surface<br />
temperature.<br />
Green Infrastructure<br />
Interconnected network of multi-functional green <strong>and</strong> blue<br />
spaces, which provide multiple environmental, economic<br />
<strong>and</strong> social benefits, linked throughout the urban <strong>and</strong> rural<br />
l<strong>and</strong>scape.<br />
Grey Infrastructure is hard engineering assets, for example,<br />
transport, utilities <strong>and</strong> commercial infrastructure.<br />
Heatwave<br />
A continuous spell of unusually hot weather, where day<br />
temperatures reach at least 30°c <strong>and</strong> night times are a least<br />
15°c for at least 3 days.<br />
Impacts<br />
The effects of climate change on natural <strong>and</strong> human systems.<br />
Potential impacts are all impacts that may occur given a<br />
projected climate, without considering adaptation. Residual<br />
impacts are the impacts that would occur after adaptation.<br />
98<br />
DCSDC Climate <strong>Change</strong> <strong>Adaptation</strong> <strong>Plan</strong>