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Project Drawdown

Drawdown Explorer solution assessments

Project Drawdown's assessments of climate solutions at global scale. Each solution spreadsheet gives the adoption unit, effectiveness (tonnes of CO2-equivalent avoided or removed per adoption unit per year, on 100-year and 20-year warming potentials, with percentiles), current and achievable adoption, the resulting climate impact range (gigatonnes of CO2-equivalent per year), cost per tonne (US dollars of 2023) and the literature each value comes from, against a 2023 baseline. Potentials are ranges and are not additive across solutions; this methodology differs from the 2017 and 2020 Drawdown tables, which are not comparable. Used for system-level solution cards that sit behind personal actions.

Free to reuse with creditactiveFetched automatically

Numbers published from it

Licence and credit

Licence
CC BY 4.0 (Zenodo deposits by Project Drawdown)
What the terms say
“Please use our materials – the numbers, the graphics, the maps, the analysis – in your work. That’s why we created them! We have intentionally made all of this material freely available so it can be used to accelerate meaningful climate action around the world. Everyone has access to it equally. We only ask that you give credit to Project Drawdown, link to the appropriate page(s), and cite our work”

From the producer's terms, checked 2026-10-04; re-checked automatically every week.

Credit we give
Project Drawdown, The Drawdown Explorer (http://drawdown.org/explorer): solution assessment spreadsheets on Zenodo, CC BY 4.0; methodology doi:10.5281/zenodo.20865531.
Copy of the raw file
Not allowed: we keep a private copy for our own checks and publish its fingerprint.
Cite as
Project Drawdown, Dioha, M., Gleeson, S., Hoff, M., Lam, J., Matthews, M., Smith, A. D., Swanson, C., Farac, N. F., Sweeney, A., Gerber, J., & Toensmeier, E. (2026). Methodology for Project Drawdown Solutions Assessments. Zenodo. https://doi.org/10.5281/zenodo.20865531. Project Drawdown. (2026). The Drawdown Explorer. http://drawdown.org/explorer.

Files

Status

Programme
The Explorer launched in September 2025; on 4 October 2026 the Zenodo community held 38 solution spreadsheets and the June 2026 methodology. The FAQ says "We aim to finish publishing all of the remaining solutions in 2026" and that solutions will be revised along the way. Non-profit, not exposed to US federal cuts.
Updates
Rolling (solutions added and revised as new Zenodo versions)
Last check
Unchanged since the last fetch (2026-10-05T11:02:27Z)