ECE’s overarching vision is to provide evidence-based, scientific roadmaps for feasible systems transformations that simultaneously meet the Sustainable Development Goals (SDGs) and ambitious climate change mitigation targets.

Emphasis is placed specifically on local policy decisions and actions required in the short term to put the world on track to achieve long-term targets while assuring human health, wellbeing, and the reduction of social inequalities in a socially and economically sustainable manner. The program’s systems analytical tools enable it to act as an objective scientific broker in support of sustainable transformational processes. ECE combines the research portfolios of the former Air Quality and Greenhouse Gases, Energy, and Transitions to New Technologies programs. 


Planet earth from the space at night

05 May 2022

Identifying global poverty from space

Despite successes in reducing poverty globally in the last two decades, almost one billion people are still living without access to reliable and affordable electricity, which in turn negatively affects health and welfare, and impedes sustainable development. Knowing where these people are is crucial if aid and infrastructure are to reach them. A new IIASA-led study proposes a novel method to estimate global economic wellbeing using nighttime satellite images.
New building of Austrian Academy of Sciences in Vienna, Austria

04 May 2022

Keywan Riahi elected as a corresponding member of the Austrian Academy of Sciences

IIASA is proud to announce that Energy, Climate, and Environment Program Director, Keywan Riahi has been elected as a corresponding member of the Austrian Academy of Sciences (OeAW) ̶ Austria’s largest non-university research and science institution.



Just Transitions to Net-Zero Carbon Emissions for All (JustTrans4ALL)


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)


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


02 December 2021

Interview: Advancing equitable transitions to net zero

Options Winter 2021: Caroline Zimm joined IIASA in 2014 and is leading the IIASA Strategic Initiative Program’s Just Transitions to Net-zero Carbon Emissions for All (JustTrans4ALL) project.
Environment society and economics written on blue puzzle jigsaw with shadow on yellow background

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