ASA Program aims to discover, develop, and deploy new, more effective, and efficient ways of infusing systems science into policy and decision making for sustainable development.

Explore options to engage with ASA

The Advancing Systems Analysis (ASA) Program welcomes expressions of interest from researchers at all career stages who wish to collaborate with us in advancing data, methods, and models as well as inter- and trans-disciplinary research to tackle the complexity of pressing sustainability challenges. More information on options to engage with ASA.

Despite numerous success stories, many policies and decisions that currently aim to deal with global change are not sufficiently informed by cutting-edge science. Among the major barriers that prevent the effective input of science into policy are perceived shortfalls in agility, realism, and relevance of the current generation of methods and models from the standpoint of end users. To address these barriers, ASA strives to advance agile, realistic, and relevant systems analytical tools and methods, and facilitate a shared understanding of the capabilities and limits of these tools and methods with end users. Consequently, ASA’s efforts span the full range, from advancing research methods and tools of systems analysis to innovating at the interface between policy- and decision making, as well as with society at large. 

ASA Program’s major objectives are:

  • To innovate approaches and tools to analyze increasingly systemic, social-ecological risks and support decisions aimed at enhancing resilience and facilitating sustainability transitions and transformations.
  • To further the capacity of agile, on-demand systems analysis underpinned by a suite of modeling frameworks of appropriate complexity.
  • To mobilize multiple sources of data and the power of data science to diagnose and identify solutions to reduce vulnerabilities and risks. 
  • To advance feasible and effective ways of engagement with policymakers, the private sector, and citizens. 
  • To enhance trust and shared understanding of systems analysis methods and tools, in particular, through open science.

Models, tools, datasets

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Geo-Wiki Earth Observation & Citizen Science

Aerial of crops

Picture Pile

Projects

Space satellite orbiting the earth

Open-Earth-Monitor Cyberinfrastructure (OEMC)

INQUIMUS conference 2022

Transformations within Reach (TwR-II)

Staff

Stephan Pietsch profile picture

Stephan Pietsch

Guest Senior Research Scholar (EM)

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Ziyi Cao

Guest Research Assistant (EM)

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Moien Rangzan

Research Assistant (ASA)

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Petr Pesov

Guest Researcher (CAT)

News

Kiev city

28 May 2026

Nexus of Sustainability: Springer monograph devoted to joint IIASA and Ukraine NMO project

Nexus of Sustainability: Understanding of FEWSE Systems II is a 2026 Springer monograph detailing the interdependencies between food, energy, water, society, and the environment (FEWSE). It focuses on risk management, robust modeling, and sustainable development, featuring recent research of the joint research project between IIASA and National Academy of Sciences of Ukraine (NASU, Ukraine NMO at IIASA) on “Integrated modeling for robust management of food-energy-water-land use nexus for sustainable development”.
Mountain of vintage televisions burning intensely, creating a large column of smoke, symbolizing outdated technology and information overload

28 May 2026

CAT contributes to Expert Round Table on Climate Misinformation under MIP4Adapt

Researchers from the International Institute for Applied Systems Analysis (IIASA) contributed to the Expert Round Table on Climate Misinformation, organized within the framework of the MIP4Adapt initiative. MIP4Adapt (Mission Implementation Platform) is the central support mechanism for the EU Mission on Adaptation to Climate Change, aiding regions and local authorities in planning and implementing climate resilience strategies. It provides technical assistance, community building, and funding guidance to Charter signatories. 
Misty rainforest

05 May 2026

Amazon understory forests show short-term boost in CO₂ uptake – but this comes at a cost

Tropical forests are one of the planet's most important carbon sinks – often also called "the lungs of the Earth". But their future in a high-CO₂ world remains uncertain. IIASA researchers contributed to a new study, which suggests even small understory trees in the Amazon may initially buffer climate change more strongly. Their long-term capacity to store carbon could, however, be restricted by nutrient availability, highlighting the vulnerability of these ecosystems under future climate conditions.

Focus

Advancing Systems Analysis Program
Annual Report 2025

Annual Report 2025: Advancing Systems Analysis Program Highlights

As global challenges become increasingly interconnected, the Advancing Systems Analysis Program continued to develop innovative approaches for understanding complexity and supporting better decisions. In 2025, the program’s research revealed new insights into urban sustainability, resilience in an era of polycrisis, public health, and sustainable development.
Wooden figures connected in a circle

23 February 2026

Validating disaster and climate resilience: how to create a gold standard for resilience-measurement

As climate risks intensify, fostering community resilience has become a global priority but a fundamental question remains for practice and policy: how can resilience be defined, measured, and proven to inform implementation? Together with the Zurich Climate Resilience Alliance, IIASA researchers have spent more than a decade developing and scientifically validating a universally-applicable framework to measure community resilience, turning a concept into an evidence-based tool to guide real-world implementation in the most vulnerable communities across the globe.

Publications