IMPACT2C

Quantifying projected impacts under 2°C of warming

 

Objective:

Figure 1. The densely populated capital of Malé, Maldives. (Wikimedia)

The project IMPACT2C (Quantifying projected

impacts under 2°C of warming) utilizes a range of models to assess the effects of climate change on water, energy, infrastructure, coasts, tourism, forestry, agriculture, ecosystems services, health and air quality-climate with a particular emphasis on the internationally recognized 2 degrees global warming target. Harmonized socio-economic assumptions and scenarios ensure that both individual and cross-sector assessments are aligned to the 2°C scenario for both impacts and adapt

ation. GCF uses the DIVA model to evaluate sea-level rise impacts with a a special focus on the Maledives. Towards this end new data is being collected, including island elevation and population changes. Furthermore, drivers and pressures of coastal changes, together with adaptation options are being assessed.

 

Funded by:

The project IMPACT2C is funded by the European Commission’s Seventh Framework Programme (2007 – 2013), under the grant agreement number 282746.

 

Findings:

Figure 2. Evidence of coastal erosion. (Ali Shareef, 2007)

The Maldives comprise 1,192 low-lying coral atoll islands in the Indian Ocean spread over 298 qkm, with elevations typically within 1.5m above mean sea level. 198 of the islands are inhabited, with one third of the total population (about 300,000) living in the capital Malé (Figure 1), which has a population density of 50,000 people / qkm. The islands are dependent on tourism and fisheries. With global mean sea levels rising, there are concerns regarding how the islands will adapt and cope with extreme water levels. Today, coastal flooding already occurs, and coastal erosion is observed in 60%-70% of the islands (Figure 2). In order to respond to these threats

Figure 3. Group from GCF, Southampton University and Ministry of Environment of the Maledives at a field trip to Dharavandhoo.

the island’s engineers employ a mix of soft (e.g. nourishment) and hard engineering methods (e.g. bulkheads, breakwaters, revetments, groynes, drainage, pumping). Another response is land reclamation that takes into account sea-level rise. The 200 ha island of Hulhumalé, located 1 km north of the capital, for example, has been created at 2m above mean sea levels on a coral reef in the 1990s as a response to high population density pressures in the capital city (Figure 4). The construction cost were US$32 million.

 

Figure 4. Hulhumalé island construction 1997, 2002, 2004, and 2005. 
(Hulhumalé Development Cooperation)

 

Contact:

Daniel Lincke

News

25.04.16

GREEN-WIN Project Website Launched

The GREEN-WIN project has launched a new website to support knowledge transfer and sharing of...


05.04.16

Adaptation requires overcoming social conflicts

A Perspective article, published by the Global Climate Forum in the journal Nature Climate Change,...


go to Archive ->
Please register here to follow the GCF newsletter.
Register
 

GCF is part of a global research network:

For more information please see:

Contact

Global Climate Forum e.V.
Neue Promenade 6
10178 Berlin
Germany

info(at)globalclimateforum.org
Phone: +49 (0)30 2060 738 0