The 1-in-100 Initiative


Name of initiative The 1-in-100 Initiative
LPAA initiative No
NAZCA Initiative Yes
Website address
Related initiatives
Starting year 2014
End year
Secretariat Rowan Douglas, CEO of the Capital, Science and Policy (CSP) Practice at Willis, and author of the concept paper which led to the 1-in-100 Initiative, has been a key orchestrator of the developments leading up to the announcements made at the Climate Summit –
Organisational structure
Geographical coverage Global
Name of lead organisation Willis Towers Watson
Type of lead organisation Business
Location/Nationality of lead organisation United Kingdom


Description a drive by an alliance of public and private sector organizations to integrate natural disaster and climate risk into financial regulation globally. At the core of the initiative is the 1 in 100 year solvency “stress test”, a similar concept to that developed in recent years by the insurance sector to assess its own ability to manage risk. The test evaluates the maximum probable annual financial loss that an organization, city, or region, could expect once in a hundred years, in order to enable them to manage their risk in a more informed and effective way. - See more at:
Objectives Integrating Risks into the Financial System
One or two success stories achieved

Monitoring and Impacts

Function of initiative Technical dialogue, Political dialogue
Activity of initiative Norms and standard setting, Knowledge dissemination and exchange, Knowledge production and innovation
Comments on indicators and goals
How will goals be achieved
Have you changed or strenghtened your goals
Progress towards the goals
How are you tracking progress of your initiative
Available reporting


Participants Number Names
Members 8  
Companies 1 International Insurance Society - IIS (USA).
Business organisations 0
Research and educational organisations 0
Non-governmental organisations 7 Future Earth - International Council for Science (France),  International Cooperative & Mutual Insurance Federation -ICMIF (United Kingdom),  PricewaterhouseCoopers - PwC (USA),  Prince's Accounting for Sustainability Project (United Kingdom),  Standard & Poor’s Ratings Services (USA),  United Nations Office for Disaster Risk Reduction (USA),  Willis Group (United Kingdom).
National states 0
Governmental actors 0
Regional / state / county actors 0
City / municipal actors 0
Intergovernmental organisations 0
Financial Institutions 0
Faith based organisations 0
Other members 0
Supporting partners 0
Number of members in the years
Have only national states as participators No


Transport Agriculture Forestry Business Financial institutions Buildings Industry Waste Cities and subnational governments Short Term Pollutants International maritime transport Energy Supply Fluorinated gases Energy efficiency Renewable energy Supply chain emission reductions Adaptation Other Resilience Innovation Energy Access and Efficiency Private Finance
No No No No Yes No No No No No No No No No No No No No Yes No No No
Last update: 11 October 2019 11:10:24

Not only have national states as participators