The TISS group explores innovative solutions to environmental issues that integrate social, institutional, and governance drivers with technological and economic considerations, with an emphasis on improving conditions for the most deprived and marginalized in society.

The research objective of TISS is to identify, analyze and promote innovative technological, social and institutional solutions for human development that leave no one behind and that respect planetary boundaries. Novel approaches are required to achieve a rapid transformation that reconciles much needed human development, particularly for the most deprived and marginalized in society, with environmental preservation and ecosystems restoration. Such solutions span a wide range from digital service provision, to integrated sharing and circular economy concepts, to decentralized, distributed infrastructures which empower active “prosumers”. Central to them all is that they can provide improved access to and provision of services critical for human well-being (nutrition, shelter, health, mobility, communication, social interactions) with vastly reduced resource and environmental footprints.

TISS research emphasizes particularly two focal areas:

  1. A systemic analysis of technological, social and institutional innovations (including inter alia new business models, social entrepreneurship, and novel public policy designs) with a focus on end-use services for human wellbeing that minimize negative environmental impacts.
  2. Integration of heterogeneity, governance, distributional and equity considerations in policy analysis and implementation under a broader framing of transformations towards resilient & sustainable futures.

TISS research can draw both on the accumulated research achievements of its research staff, novel methodological approaches, as well as a wide array of online resources (see also below) made available for the use of the wider scientific and policy communities and that provided critical inputs to the work of the IPCC and The World in 2050 Initiative. Important research TISS can build on include for example (see below links to selected publication highlights): A thorough understanding of innovation systems combining conceptual with detailed empirical case studies; search on granular technology options and their advantages for equitable access to services and for rapid upscaling; empirical research on distributions and deprivations of access to service provision critical for human development; the influential research on Decent Standards of Living, again combining conceptual theoretical work with empirical quantifications.

The group’s three research areas include:

Energy services and infrastructure for decent living

Access to energy services and basic infrastructures are fundamental to meeting basic human needs, and a key requirement in the fight to eradicate poverty around the world and achieve decent living standards (DLS) Using the lens that people demand amenities and services rather than products and goods, this research entails both a diagnostic (identification of provisioning gaps) as well as a policy dimension (identifying novel options and crafting strategies for their rapid rollout and implementation). This research can build on considerable in-house knowledge, data and tools that were developed in pioneering work on describing heterogeneity in levels of service provisioning, a broader focus on distributive justice in human and planetary wellbeing, and the multiple dimensions of inequality, modeling energy access, as well as the development of the concept of Decent Standards of Living.

Technological, social, and institutional innovation for development

Meeting development needs under planetary boundaries requires novel solutions combining technological, social and institutional innovations which are interdependent. TISS research aims to identify those novel solutions that provide needed services while minimizing negative environmental externalities and provide new business and economic opportunities for development. Examples include digital service provisions and novel forms of shared mobility that seamlessly integrate public transport with on-demand private mobility via shared vehicle fleets. This research can draw on considerable in-house expertise on innovation systems and the determinants of successful (or unsuccessful) innovations from two decades of prior research at IIASA.

Governance and institutional structures

Quality of institutions and effective governance are some of the key enablers of feasible transformations of our societies and economies towards a climate-neutral and sustainable world. TISS research is building bridges between political science and political economy approaches, and quantitative scenarios and modeling efforts, to enhance the representation of governance and institutional capacities that, for instance, effect the extent to which adaptive capacity of a society is constrained or climate policies and low-carbon transition pathways are feasible. Work in this area aims to contribute to understanding of the role of policies, institutions and governance in sustainable energy system transitions.

Selected Publications Highlights
 

Themes

Just and Feasible Transitions

Scenario Services and Scientific Software

Access to Energy Services

Heterogeneities and Inequalities

Models, tools, datasets

Photo 238871488 © Lakshmiprasad S | Dreamstime.com

Energy Access Interactive (ENACT)

gas pipeline

Model for Energy Supply Strategy Alternatives and their General Environmental Impact (MESSAGEix)

Photo 134399877 © Designer491 | Dreamstime.com

ENGAGE Scenario Explorer

Projects

Beige and colored pawns grouped together

Exploring National and Global Actions to reduce Greenhouse gas Emissions (ENGAGE)

Abstract image: hand holding Earth against sunset with network concept superimposed

GeoEngineering and NegatIve Emissions pathways in Europe (GENIE)

Grossglockner Austria

Next generation of AdVanced InteGrated Assessment modelling to support climaTE policy making (NAVIGATE)

Sustainable development goals

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

Staff

Bas van Ruijven profile picture

Bas van Ruijven

Research Group Leader and Principal Research Scholar (S3); Principal Research Scholar (IACC, TISS)

Shonali Pachauri profile picture

Shonali Pachauri

Research Group Leader and Principal Research Scholar (TISS); Principal Research Scholar (S3, IACC)

Marina Andrijevic profile picture

Marina Andrijevic

Research Scholar (IACC, TISS)

Benigna Boza-Kiss profile picture

Benigna Boza-Kiss

Research Scholar (S3, TISS)

News

Using less, living better

19 June 2026

Using less, living better: Demand-side climate action wins public support

A new IIASA-led study finds that climate strategies that cut energy and resource demand tend to improve quality of life across a broader range of dimensions than supply-side alternatives and shows that communicating these wider benefits can strengthen public support.
Earth night view from space map with city lights satellite-based observations. Elements of this image furnished by NASA.

24 April 2026

Scientists call for integrating three energy demand goals into climate policy by 2035

A new study published in Science argues that governments should adopt three integrated energy demand goals by 2035, warning that climate policy will fall short unless it focuses not only on how energy is produced, but also on how it is used.
Aerial view of harvest fields with tractor in Poland

11 March 2026

Securing food production on a rapidly warming continent: EU climate advisors call for urgent action

The EU agri-food system is increasingly threatened by climate change while accounting for roughly one-third of the EU’s greenhouse gas emissions. A new report by the European Scientific Advisory Board on Climate Change, with contributions from IIASA researchers, warns that current policies are insufficient to address rising climate risks and meet EU climate targets.

Focus

Innovative Smart City Integrates Renewable Energy Sources and Modern Architecture to Promote Sustainability

Annual Report 2025: Energy, Climate, and Environment Program Highlights

The transition to a low-carbon future requires both ambitious action and a clear understanding of what works. In 2025, the Energy, Climate, and Environment Program produced research that helped clarify the opportunities, trade-offs, and practical pathways for accelerating climate mitigation and strengthening environmental sustainability. 
 Hhistorical house build from sandstone stones nd wood. Thermal camera photography, infrared scan

23 April 2026

Building sector climate neutrality by 2050: Do we have a concrete elephant in the room at home?

Ahead of the recent International Vienna Energy and Climate Forum, IIASA researchers Benigna Boza-Kiss and Shonali Pachauri explored the often-overlooked role of the building sector in achieving climate neutrality by 2050. Drawing on IIASA research, they highlight the urgent need to transform how buildings are designed, renovated, and used, emphasizing demand-side solutions, policy reform, and systemic change to avoid locking in emissions for decades to come.

Publications