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After the flood - preparing Copenhagen for climate change

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<strong>After</strong> <strong>the</strong> <strong>flood</strong> - <strong>preparing</strong><br />

<strong>Copenhagen</strong> <strong>for</strong> <strong>climate</strong> <strong>change</strong>


<strong>Copenhagen</strong> Climate Adaptation Plan<br />

• The plan was approved by <strong>the</strong><br />

City Council <strong>the</strong> 25. august 2011<br />

• Identification of threats<br />

• Determines an overall strategy<br />

• Pointing to <strong>the</strong> overall solutions<br />

• Must be accompanied by<br />

concrete action, such as<br />

Cloudburst Plan and construction<br />

activities<br />

• www.kk.dk/english


Main challenges<br />

Rain<br />

Flooding from <strong>the</strong> sea


Risk assessment - rain water and<br />

sea level <strong>flood</strong>ing<br />

• Estimated costs and <strong>the</strong><br />

probability of damage show<br />

that rain water is <strong>the</strong> most<br />

immediate threat<br />

• But in 30 years time <strong>the</strong> risk<br />

of <strong>flood</strong>ing due to rising sea<br />

levels will be greater (and<br />

<strong>the</strong> damage higher)<br />

‣ Long decision making<br />

process - complicated<br />

financing<br />

‣ Consequences <strong>for</strong> urban<br />

development<br />

‣ There<strong>for</strong>e we must start<br />

planning now


Risk map


And <strong>the</strong>n we<br />

thought we<br />

had 30 years<br />

to implement<br />

<strong>the</strong> plan…….


Cloud burst <strong>Copenhagen</strong> 2. juli 2011


July 2011 - damages<br />

• More 150 mm rain within 2<br />

hours<br />

• Close to 1 billion euros in<br />

insurance claims<br />

• Damage to critical<br />

infrastructure<br />

• Hospitals minutes from<br />

evacuation<br />

• Emegency services<br />

threatened


Reality check


Cloudburst plan<br />

Hvordan får vi vandet og CO2 ud af KBH?


Decision of safety level


Methods and priorities


Prioritizations….<br />

1. Areas with high risk<br />

2. Projects that are easy to<br />

implement<br />

3. Synergy with o<strong>the</strong>r<br />

projects - road and<br />

implementation of water<br />

frame directive<br />

4. Still aiming <strong>for</strong> a green<br />

and blue city


A green and blue city -<br />

adapted to a future <strong>climate</strong> = more quality of life<br />

• Adaptation is not just a<br />

negative measure<br />

• We can increase <strong>the</strong><br />

recreational area and create<br />

more quality of life <strong>for</strong><br />

copenhageners<br />

• We can help make<br />

copenhageners more<br />

healthy<br />

• We can create synergy with<br />

o<strong>the</strong>r planning<br />

• We can increase<br />

biodiversity.


Handling more water and developing a recreative waterfront<br />

Main problem: a polluted harbour<br />

and a combined sewage system.<br />

An unattractive harbourfront<br />

A plan <strong>for</strong> reducing sewage<br />

owerflow was made and<br />

accepted by <strong>the</strong> city<br />

administration in 1992<br />

Developing a park along <strong>the</strong><br />

harbour front


Tools<br />

• construction of rain- and sewage<br />

water reservoirs<br />

• Reduction of rainwater in <strong>the</strong><br />

sewage<br />

• Cleaning of run-off water from<br />

<strong>the</strong> roads


Harbour baths - a huge improvement of <strong>the</strong> quality of life


Methods to ensure <strong>the</strong> city from <strong>flood</strong>ing


Skt Annæ Plads


A <strong>climate</strong>proof neighbourhood


Adaptation is a new precondition in urban<br />

development<br />

• Will influence <strong>the</strong> way we<br />

utilise and plan urban spaces<br />

• Will influence <strong>the</strong> use and<br />

development of recreative<br />

areas in <strong>the</strong> city<br />

• In <strong>the</strong> future we have to make<br />

sure that we can manage and<br />

control water when we<br />

develop <strong>the</strong> city, and we will<br />

actively use water as a<br />

resource to improve <strong>the</strong><br />

urban life


Challenges<br />

• The scale - we are remodelling <strong>the</strong><br />

rain water management i<br />

<strong>Copenhagen</strong><br />

• Environmental issues (EUwaterframe<br />

directive) - balancing<br />

between safety and environment<br />

• Urban development<br />

• Demographics - <strong>Copenhagen</strong> is a<br />

growing city


Thank you <strong>for</strong> your attention<br />

Lykke Leonardsen<br />

City of <strong>Copenhagen</strong><br />

lykleo@tmf.kk.dk

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