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Press release

Transboundary climate risks can undermine effective responses to climate change – new evidence shows

As global warming accelerates, transboundary climate risks are projected to rise, endangering societies and economies worldwide. According to the first flagship report from the Adaptation Without Borders partnership, no country is immune to these risks – they can affect any country, at any time.

Published on 20 April 2023
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Ulrika Lamberth /

Drone view of different vegetation types and water in Lake Connewarre near Barwon Heads, Victoria, Australia.

Lake Connewarre near Barwon Heads, Victoria, Australia. Photo: Paul Feikema / Getty Images.

The Global Transboundary Climate Risk Report 2023 reveals new evidence on ten globally significant transboundary climate risks and underscores the urgency for international cooperation in tackling these challenges.

Evidence shows that transboundary climate risks are a global concern, yet the international, national and local mechanisms to adapt to climate change are not yet equipped to meet this common challenge. We need a global response to transboundary climate risks if we are to build collective resilience to climate change.

Katy Harris, Director of Adaptation Without Borders and Senior Policy Fellow, SEI.

Transboundary climate risks, which are triggered by a climate hazard in one country, traverse borders, continents and oceans to affect communities on the other side of the world. In our increasingly interconnected world, these risks propagate through shared natural resources, ecosystems, trade connections, financial flows and human mobility.

The Global Transboundary Climate Risk Report uncovers new evidence on ten transboundary climate risks affecting vital sectors and regions, including high-mountain water resources, open ocean fish stocks, industrial supply chains, energy and global finance systems as well as human health, livelihoods, mobility patterns and physical and mental well-being.

The report also shows that transboundary climate risks combine with non-climate drivers such as poverty and conflict to undermine our collective wellbeing. It is clear they have the greatest impact on the poorest and most vulnerable people, exacerbating inequities and the root causes of their vulnerability.

Katy Harris

Climate change adaptation efforts can also yield transboundary consequences, as local and national decisions can trigger cross-border effects that directly impact people’s livelihoods and well-being. Thus, it is crucial for stakeholders at all levels to recognize and address cross-border and cascading climate impacts and develop adaptation strategies which factor in their own, far-reaching, implications.

Join the launch webinar today

20 April 11:00—13:00 CEST.

Follow the event live on Youtube.

After the presentations, there will be a general Q&A session from 12:40.

Further information

Ulrika Lamberth, Senior Press Officer, Stockholm Environment Institute (SEI), +46 73 801 70 53, [email protected],

Brigitte Béjean, Director of Communications, Institute for Sustainable Development and International Relations (IDDRI), +33 6 03 26 93 57,

Charlotte King, Climate Consortium Communications Lead, Global Risks and Resilience Programme, [email protected],

Ulrika Lamberth
Ulrika Lamberth

Senior Press Officer


SEI Headquarters

The Adaptation Without Borders Partnership

Graphic: SEI.

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