The IACC Group leads the development of tools for a new generation of “coupled” global transformation pathways that are able to represent bottom-up local constraints and opportunities at the national and sub-national scale, which is a major focus of the ECE Program.

IIASA researchers have been spearheading efforts to embed climate change mitigation in the broader context of environmental challenges and sustainable development over the course of the last decade. The IACC Group aims to push the research frontier further in a way that allows for the development of true sustainable development pathways. In this regard, a key research focus is to quantify the benefits of mitigation beyond simple economic considerations to enable a better understanding of how climate impacts will affect different parts of the population and to which degree these are able to adapt. The group also explores the integration of energy and materials to broaden the strategy space beyond classic energy- and land-based mitigation strategies by including important elements of a circular economy approach.  


Collage showing renewable energy sources, solar panels, wind turbines and a hydro electricity dam

03 May 2022

How solving Central Asia's water-energy conflict can also boost renewable energy generation

Researchers from the IIASA Energy, Climate, and Environment Program found that agricultural efforts in downstream countries in Central Asia, traditionally hampered by a lack of water for irrigation during the summer growing season, would be significantly boosted with a “dual water and energy storage scheme”, which also paves the way for high shares of renewable energy generation in the region.
Digital image of globe with conceptual icons

21 April 2022

IIASA researchers recognized for advancing open science

There is an increasing awareness in the scientific community that open-source scientific software is an integral requirement for open science, increasing transparency, and the reproducibility of research findings. Two manuscripts by IIASA researchers presenting state-of-the-art developments furthering these goals were recently recognized by the scientific journals where these works were published.



Response of the Earth System to overshoot, Climate neUtrality and negative Emissions (RESCUE)

earth system

ESM2025 - Earth System Models for the Future (ESM2025)

Sustainable development pathways achieving Human well-being while safeguarding the climate And Planet Earth (SHAPE)

urban greenery

Energy Demand changes Induced by Technological and Social innovations (EDITS)


India Forest
The concept of nexus thinking has gained traction amongst the applied research community to examine cross-sector linkages between land, water, and energy strategies. A nexus approach identifies the interactions among sectors to better understand the synergies and trade-offs involved in meeting future resource demands in a sustainable way.
An interactive Web-based scenario analysis tool which allows the concurrent assessment of multiple energy objectives


29 November 2021

Using energy demand reduction for decarbonization in Japan

Options Winter 2021: In an attempt to reduce its carbon footprint, Japan has put ambitious strategies in place to reduce energy demand. IIASA researcher Shinichiro Fujimori and his colleagues used modeling to explore potential energy system changes and their cost implications.
Crowd of people in Tokyo

17 November 2021

People at the heart of climate change

Options Winter 2021: Human activity is the main cause of climate change. It is also people who endure the worst of its impacts. It is a matter of utmost urgency that people are part of the solution.
abstract watercolor painting of a hand touching the globe