The World in 2050

Today, the necessary integrated comprehensive quantitative understanding of scenarios for achieving sustainable development, accounting for the various inter‐linkages between the economy, technology, environment, climate, human development and planetary boundaries, does not exist. With the adoption of the

SDGs, the world will set out very clear and ambitious global goals across social, economic and environmental areas, and although there is recognition that there are interactions between and among these goals (e.g., between energy and climate, between food security and ecosystem, etc.,) there is, as yet, no attempt to assess the viability of achieving these multiple social‐economic‐environmental goals simultaneously.

The World in 2050 Project (TWI2050) will explore the implications of the necessary transformative sustainable development pathways and the possible ‘degrees of freedom’ to meet economic development goals within a safe operating space of a stable planet.

The project will explore avenues to achieve sustainable development pathways, by back‐casting from desired development outcomes as defined by the SDGs. The initiative will combine recent advancements in economic modeling and Earth system science to study the interactions between economic growth and global sustainability for sustainable development (SD) pathways.

The transformative pathways will serve to identify short‐term actions for achieving sustainable futures and their co-benefits e.g. for health or security. The project will be implemented under the umbrella of the SDSN and will be coordinated by Pavel Kabat, Director of the International Institute for Applied Systems Analysis (IIASA), Johan Rockström, Director of the Stockholm Resilience Center at Stockholm University, and Jeffrey D. Sachs, Director of the Earth Institute at Columbia University.

Integrated Modelling of Human and Environmental Systems