Sign up for monthly updates from the SDSN.
First name is required.
Last name is required.
Questions or Comments?

We welcome your questions or comments on our work. Please get in touch with us by writing to info@unsdsn.org.

The World in 2050 (TWI2050) is designed as a partnership between science and policy that aims to develop equitable pathways to sustainable development within safe planetary boundaries. TWI2050 was launched by the International Institute for Applied Systems Analysis (IIASA), the Sustainable Development Solutions Network (SDSN), the Stockholm Resilience Center (SRC) and the Earth Institute at Columbia University.

Project Rationale

Download the TWI2050 flyer

Download the The World in 2050 (TWI2050) flyer

The Sustainable Development Goals (SDGs), unanimously adopted by the United Nations in September 2015, provide an aspirational narrative for the desired future for human development with an actionable agenda. The aspiration is for a world free from hunger, injustice and absolute poverty, of universal education, health and employment with inclusive economic growth, based on transparency, dignity and equity, all achieved within the boundaries of the planet. The urgent question now is how to act on this aspirational agenda and to have a clear understanding of the full consequences and cost of inaction and the benefits of achieving SDGs in every major region of the world.

The World in 2050 (TWI2050) is an initiative designed to help answer these questions. TWI2050 aims not only to contribute to this understanding but also develop science-based transformational and equitable pathways to sustainable development that can provide much needed information and guidance for policy makers responsible for the implementation of the SDGs.

Learn more at twi2050.org.

Other Solutions Initiatives

  • Deep Decarbonization Pathways Project

    The Deep Decarbonization Pathways Project (DDPP) is an SDSN Solution Initiative co-founded with the Institute for Sustainable Development and International Relations (IDDRI) to prepare national low-emission development pathways to 2050, consistent with limiting the rise in global temperatures to well below 2°C, as agreed in the Paris Agreement on climate change.

  • Agricultural Transformation Pathways initiative

    This SDSN Solution Initiative aims to provide support to countries in choosing realistic targets that are congruent with the new SDGs and developing technology and socio-economic roadmaps for meeting selected targets.

  • USA Sustainable Cities Initiative (USA-SCI)

    Building on ongoing municipal sustainable development planning efforts, the USA Sustainable Cities Initiative (USA-SCI) is supporting SDG achievement strategies in three pilot US cities: New York (New York), Baltimore (Maryland), and San Jose (California).

  • Reconciling Development Data

    The process of data reconciliation, which stitches together multiple related datasets, can increase the efficiency and achieve a level of specificity hitherto unavailable to most statistics offices.

  • Rio Sustainable Cities Initiative: SDG Implementation in a Metropolitan Context

    The Rio Sustainable Cities Initiative recognizes that comprehensive sustainable urban development necessitates local and national cooperation. Holistic planning cannot be confined to local boundaries. This is particularly important as cities strive to achieve the urban sustainable development goal (SDG 11), to make cities and human settlements inclusive, safe, resilient and sustainable.

  • SDG Local Data Action

    The SDG Local Data Action Solutions Initiative (SI) is a crossover project between the USA-Sustainable Cities Initiative (USA-SCI) and the Thematic Research Network on Data and Statistics (TReNDS).Upon the adoption of the Sustainable Development Goals by 193 countries in September 2015, a clear consensus emerged that data would play a key role in measuring- and achieving – […]

  • Open Algorithms Project

    The Open Algorithms project (OPAL) is led by the DataPop Alliance with partners Orange, World Economic Forum, Agence France du Developpement, PARIS21, and SDSN. OPAL demonstrates a pathway to harness private data for the public good while maintaining the datasets’ privacy, security, and proprietary value. By developing a mechanism for querying telecommunications data behind the […]

  • Virtual Open Schools

    The Virtual Open School project aims to identify and test a model for large-scale, online provision of quality secondary level education in rural areas in an economically sustainable way.