The Global Assessment Report is the defining report on the state of art and future on disaster risk. The comprehensive 2025 report comes 10 years after the Sendai Framework, where the global community agreed to  further prevent the creation of new risk, reduce existing risk and increase resilience.

The Global Assessment Report (GAR) 2025, published by the United Nations Office for Disaster Risk Reduction (UNDRR) and titled, Resilience Pays: Financing and Investing for our Future, shows disaster risk is increasing as more frequent and intense hazard events, unsafe urbanization, and ineffective development put more people and assets in harm's way. Disasters have profound macroeconomic impacts, with direct losses estimated at $202 billion. When cascading and ecosystem costs are taken into account, escalating disaster costs now surpass $2.3 trillion annually.

The report also highlights how smarter investment can reset the destructive cycle of disasters, debt, uninsurability, and humanitarian need that threatens a climate-changed world.

IIASA contributed with global analysis on fiscal risk showing how compound hazard risk leads to more frequently occurring fiscal crisis events. Concerningly, based on an analysis of disaster and economic indices, it suggests that for 61 vulnerable countries events significant enough to trigger a fiscal crises may occur more than every 10 years (an annual probability larger than 10%). The IIASA contribution goes further to underscore that this is not inevitable. It shows how having better access to finance and innovative disaster risk financing options can help stop this bifurcation between countries increasingly caught in a rapid cycle of disaster related fiscal crises and those able to develop more sustainably. Specifically, the study takes as an example, how countries’ reserve assets in the International Monetary Fund (IMF) (the Special Drawing Rights (SDR)) can soften the impact of disasters as proposed internationally by the Bridgetown Initiative to reform the global development and climate finance architecture.

Such an investment in risk reduction would thus have a massive development dividend in terms of fiscal and economic stability, solid credit ratings, access to finance and thus enhanced government capacity to support the most vulnerable communities and households.

GAR virtual launch © UNDRR

News

Group photo of the Ambassador with IIASA representatives and YSSP participants

03 July 2026

Building bridges: Indian Ambassador visits IIASA

H.E. Ambassador Shambhu S. Kumaran, India's Permanent Representative to the International Organizations in Vienna, recently visited IIASA to explore deeper research cooperation and meet the Institute's Indian Young Scientists Summer Program (YSSP) cohort.
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03 July 2026

Tree-Quest: A Citizen Science App for Collecting Single-Tree Information

Tree-Quest is a citizen science mobile tool that enables users to measure aboveground biomass related attributes (tree diameter, height and species) and estimate carbon stored in trees while contributing data for forest and urban tree mapping, supporting research on biomass and carbon storage. Engaged citizens can measure nearby trees in their local surroundings, such as parks and along the streets in urban areas, integrating science into their daily routines. This helps generate valuable ground-based observations on trees in urban environments that can be used for satellite-based carbon assessment. 
NRF

02 July 2026

IIASA welcomes delegation from the National Research Foundation South Africa

A delegation from South Africa's National Research Foundation (NRF) visited IIASA to exchange knowledge on systems approaches to disruptive change, innovation, and evidence-informed decision-making. The visit reflects the longstanding collaboration between IIASA and South Africa.