Since 2006, organisations have turned to our team to help them analyse the physical impacts of climate change to their business operations.

XDI’s analysis is underpinned by the Climate Risk Engines, developed through extensive commercial engagement with industry and government.  From the outset, insights provided by the Climate Risk Engines have steered the conversation around climate change adaptation for a committed group of professionals who understood the need to find language and processes to incorporate climate risk and adaptation into decision making.

As the sophistication and power of the Climate Risk Engines evolved, a new understanding of more complex risks to larger businesses and governments began to emerge. Beyond individual assets, there was a need to analyse climate risk at an ecosystem level; to see the impacts of failures to power, water and transport infrastructure to people and organisations that depend on them.

In 2011 the XDI vision was born; to make possible a systems analysis of how climate risk affects not just one organisation but all of its upstream and downstream interdependencies. This is XDI, The Cross Dependency Initiative. A whole system vision of climate impacts that accounts for all physical risks, powered by the Climate Risk Engines’ world class benchmark of computational analysis.

We live in an ecosystem of connections: buildings, people, places, nature and infrastructure. Society depends on these connections, and if climate change damages these, our societies will be weaker.  When threats to these connections are made visible, organisations can act to protect their assets, creating a broader resilience  in society and  helping them navigate new economic opportunities in the face of a changing climate.

Rohan Hamden

CEO and XDI founder

Our Values

Climate Change is driving an evolution in business decision making.  We believe the power of data will drive this cultural shift, as more decision makers become empowered with the knowledge to lead their organization toward climate resilience.


Business as usual ignores climate impacts, and risks business failure. Looking honestly at the uncomfortable issues brings solutions to light.


Change takes courage. Incorporating climate adaptation into decisions requires you to challenge existing practices and traditional metrics. We’ll support your business case for change with the best information possible in the boardroom.


We are committed to your organisations journey. We delve deep, we listen. We are with you.

our people

XDI Projects team


Rohan Hamden

MBA (International Finance and Management), B.Sc (Biotechnology) B.AppSc. (Cons & Park Mgmt.)


Rohan brings extensive networks and management experience to XDI’s integration of climate risk analysis into corporate and Government adaptation planning.  As CEO Rohan leads XDI’s business networking, particularly at high Government level in Australia and North America.  Rohan spearheads the engagement of XDI’s cross dependency analysis at a Government level, pioneering state or province wide engagement of cross dependency analysis to prevent breakdown of critical infrastructure services to constituents as a result of extreme weather and climate change.

He has 20 years’ experience in the climate reform and sustainability field. Rohan established and led the multi-award-winning Climate Change Adaptation Program for the South Australian Government, and is committed to helping industry, government and community organisations across the world to plan for climate impacts and to measure the benefits of climate actions.  He worked on the Torres Strait Adaptation Action Plan 2014 and Council Adaptation Planning Guidelines 2014.

Ruth Tedder

BA Communications

Business Manager

Ruth’s business management experience extends over 20 years.  She manages finance and oversees strategic development.

Zafi Bachar

MSc (Environment and Planning)

Project Manager

Zafi Bachar brings 20 years of experience to his Project Manager role with XDI. He was one of the founders of the multi-award winning Green Steps program at the Monash Sustainability Institute, and later worked for Origin Energy, ICLEI, AECOM, and multiple municipalities in Victoria and South Australia. More recently, Zafi worked with the South Australian State Government Department for Environment and Water facilitating innovative urban adaptation partnerships. 

Climate Risk Engines team

Karl Mallon 2

Dr. Karl Mallon 

B.Sc. (Physics), Ph.D. Mech. Engineering.  University of Melbourne

Director, Science and Systems

Karl Mallon is Co-Director of XDI and Director of Science and Systems at Climate Risk Pty Ltd,
which developed the Climate Risk Engines that underpin XDI’s cross dependent analysis. Since
2007, Karl’s work in Australia has focussed on developing systems to understand the complex
play of climate change variables that impact an organisation’s physical assets, human resources
and management processes. From 2011, Karl and his technical team have been engaged in
developing qualitative and quantitative processes that capture this complex challenge. A major
focus has been the integration of hazard, engineering and financial data into high-speed cloud
computing software to provide decision support systems for governments and corporations.

Karl has worked in climate change mitigation, policy and technical analysis since 1991 in Europe
and Australia, and specialised on climate adaptation since 2005. His interests vary widely, from
working on policy issues with international government and non-government organisations;
financial issues in the insurance and institutional investment sectors; and the risks to
infrastructure, local government and residential assets.  Karl is editor and co-author of
‘Renewable Energy Policy and Politics: A Handbook for Decision Making’ published by
Earthscan (London) and a contribution author for ‘Practical Adaptation Studies’, published by
Wiley.  Karl is a founding board member of The Climate Bonds Initiative (London).

Jacquelyn Lamb

B.Env.Sc. & Mgmt (Geology)UoN

Head of SaaS Operations

Jackie is the chief technical expert on XDI Globe and AdaptInfrastructure. Her work with Climate Risk has included projects on urban water distribution, telecommunications, property insurance and local government.  She specialises in data acquisition, spatial analysis and modeling. Jackie’s recent work has focuses on modeling the impacts of extreme weather and climate change to urban infrastructure as well as cost benefit analysis of multi-control adaptation measures.  Jackie is also a trainer for users of XDI Globe, AdaptInfrastructure and other cloud-based adaptation software.

Max McKinlay

B.Env.Sc UTS

Climate Data Analyst

Max interprets climate and client data for analysis within the Climate Risk Engines, focussing particularly on the development of new hazards capability and expanding geographical coverage. He has also worked to develop the application of the Climate Risk Engines to a tool for assessing climate change effects on the market value of residential property. He studied Environmental Science at the University of Technology Sydney, graduating with First Class Honours.

Ned Haughton

BSc (Biology, Mathematics) Newcastle, BSc Honours (Climate science) UNSW, Ph.D., UNSW

Climate Scientist

Ned submitted his PhD in land surface model evaluation at the Climate Change Research Centre at the University of NSW in 2018.  He brings maths, data visualisation, and web development skills to the team. Working deep within the computational functions of the Climate Risk Engines, Ned’s work marries the numbers end of analysis with the user end of the products. He also works closely with Max to implement further hazard analyses and climate datasets into the system. 

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