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ORRAA - OCEAN RISK AND RESILIENCE ACTION ALLIANCE

HAIPHONG, VIETNAM

Illustrative view of coastal flooding
without ecosystems


THE COASTAL
RISK INDEX


ContactContact
ContactContact


HAIPHONG, VIETNAM

Illustrative view of coastal flooding without ecosystems

 * Better Data
 * Better Decisions
 * Better Outcomes



THE COASTAL RISK INDEX IS
THE PLATFORM FOR ASSESSING
COASTAL RESILIENCE

The Coastal Risk Index – the CRI – harnesses the power of data to enable
financial institutions, investors, insurers, and policymakers to better assess
coastal risk and improve decision-making in the climate crisis.



BETTER DATA

BETTER DATA

The CRI provides the foundation for better understanding coastal risks, enabling
more informed decisions about building resilience in coastal communities. It
goes beyond physical flood risk and economics to include social drivers and
incorporate the crucial role of nature.

The CRI is an open-source platform providing a detailed set of global flood
maps, using hydrodynamic models, to understand current and future coastal flood
risk and the flood reduction benefits of natural habitats. Social vulnerability
data highlights where reefs and mangroves are critical to reducing risk for
climate vulnerable coastal communities.



14.2 million

The CRI has calculated that 14.2 million more people would be flooded annually
without coral reefs and mangroves providing the first line of defence against
coastal flooding and storm surges.



BETTER
DECISIONS

BETTER DECISIONS

The CRI is designed to inform financial institutions, insurers, policymakers,
and other decision-makers about climate risks and resilience strategies for
coastal areas. This platform enables communities to be more resilient while
protecting and restoring nature.


30%

The CRI estimates that of the people around the world currently protected from
flooding by these ecosystems, around 30% of them are considered highly socially
or economically vulnerable.



BETTER DECISIONS

The CRI is designed to inform financial institutions, insurers, policymakers,
and other decision-makers about climate risks and resilience strategies for
coastal areas. This platform enables communities to be more resilient while
protecting and restoring nature.



BETTER
OUTCOMES

BETTER OUTCOMES

The CRI provides data on the benefits of resilient ecosystems to climate
vulnerable coastal communities. This data supports decision-makers in
integrating Nature-based Solutions into tools that minimise risk, build
resilient communities, and restore ecosystems.



$363 billion

The CRI has found that USD$363billion worth of coastal assets would be at risk
of flooding without the protective benefits of coastal ecosystems.




THE FUTURE OF
COASTAL
FLOODING




The Coastal Risk Index provides a detailed way to assess coastal flooding in the
context of climate change, modelling flood hazard and storm surge in current
conditions and in possible future climate scenarios.

The following map shows the CRI’s data on the impact of losing mangrove
protection (on the left), as the extent and depth of flooding increases if
mangroves are not present (on the right). By quantifying the value of reef and
mangrove ecosystems for their flood resilience benefits, the Index can help
catalyse their restoration and protection across the world.


coastal flooding with ecosystems
Naga city, philippinesNaga city, philippinesCape coral, florida, usaCape coral,
florida, usa
coastal flooding without ecosystems
toggle info

These visualisations map the future with (left) and without (right) mangroves
present to demonstrate the importance of coastal habitats for reducing risks.
Taller and darker columns indicate higher flood depths. Swipe using the middle
arrows to compare the two scenarios for Naga City, Philippines and Cape Coral,
Florida.



zoom in zoom out
Flooding depth 1m

7m

These visualisations map the future with (left) and without (right) mangroves
present to demonstrate the importance of coastal habitats for reducing risks.
Taller and darker columns indicate higher flood depths. Swipe using the middle
arrows to compare the two scenarios for Naga City, Philippines and Cape Coral,
Florida.




ABOUT
THIS PLATFORM




Using models and data developed by IHE Delft and University of California Santa
Cruz, the CRI demonstrates flooding at 90 metres resolution in different
scenarios and intensities. Explore the initial maps to understand where
communities are most at risk, now and into the future and where mangroves and
coral reefs play a crucial role in reducing economic, social and biodiversity
impacts.

Click anywhere to interact.


iFrames are not supported on this page.
click to enterenterexit click to enterenterexit



USER BENEFITS



The CRI is open to all. Users can view flood hazard maps for any coastal area
and understand the avoided costs nature provides to both people and assets.
Users can also examine areas of high social vulnerability and where investing in
coastal Nature-based Solutions plays a role in protecting communities.

Financial institutions, insurers, governments, and banks can leverage the data
and insights on this platform for policy and product development.




 * INSURERS
   
   Integrate ecosystems in risk models to develop new products and more accurate
   pricing while working with clients to manage their risks.
   
   

 * FINANCIAL INSTITUTIONS
   
   Understand how ecosystem health affects investments in the long-term, map
   future liabilities, and develop innovative finance solutions that incorporate
   nature.
   
   

 * GOVERNMENTS & POLICYMAKERS
   
   Assess exposure of their communities and identify opportunities for
   significant restoration benefits to target resources and protect people,
   infrastructure, and society.
   
   

 * DEVELOPMENT
   BANKS
   
   Manage long-term risks to investment portfolios, target development
   assistance towards Nature-based Solutions, and gain a clearer understanding
   of economic benefits of coastal habitats.





FEATURES




The CRI is the platform for understanding coastal resilience. Taking these
initial maps a step further, the aim is to develop a full data platform that
allows users to interact with the underlying data, to dive deeper into insights
on coastal flooding and the role of Nature-based Solutions. These concepts
showcase the future direction of this interactive platform. What is shown on
these screens is not interactive, but illustrative of the features and
functionality the full CRI aims to develop. The final platform may differ from
what is shown here.



View rankings of countries on issues ranging from assets at risk to climate
impacts on coastal populations

1/6



Explore flood maps to understand hazards in different flooding intensities and
future climate change scenarios

2/6



View projections such as the number of people and the value of coastal assets at
risk of flooding in 2030 and 2050

3/6



Access tools to understand the economic effects of ecosystem degradation on blue
economy sectors

4/6



Assess how the presence of ecosystems reduce hazards for coastal communities

5/6



Learn how the risk profile of coastal communities changes when social and
economic vulnerability is taken into account

6/6





JOIN US

We’re creating a platform to build resilience through nature, and we’re seeking
partners to help shape the future.

Contact us to learn moreContact us to learn more


This project is a collaborative effort between the Ocean Risk and Resilience
Action Alliance, the global insurer AXA, IHE Delft, and the University of
California Santa Cruz.

 * 
 * 
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 * 

The work is generously supported by AXA, the Government of Canada, the United
Kingdom’s Blue Planet Fund, and the United States Department of State.

 * 
 * 
 * 
 * 

We partner with organisations that believe in protecting natural assets to
create a more resilient future.

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