Drawdown (climate)

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Climate drawdown is the point at which greenhouse gas concentrations in the atmosphere level off and begin to decline on a year-to-year basis.[1] Drawdown is a milestone in reversing climate change, and eventually reducing global average temperatures.[2]

Project Drawdown[edit]

Project Drawdown is a climate change mitigation project initiated by Paul Hawken and climate activist Amanda Joy Ravenhill. Central to the project is the compilation of a list of the "most substantive solutions to global warming".[2] The list, encompassing only technologically viable, existing solutions, was compiled by a team of more than 200 scholars, scientists, policymakers, business leaders, and activists.[3][4] The team measured and modeled each solution's carbon impact through the year 2050, its total and net cost to society, and its total lifetime savings.[5][2]

Top ten solutions[edit]

Solution[6] Min. CO2 -eq (Gt)
reduced/sequestered (2020-2050)
Max. CO2 -eq (Gt)
reduced/sequestered (2020-2050)
Reduce food waste 87.45 94.56
Health and education 85.42 85.42
Plant-rich diets 65.01 91.72
Refrigerant management 57.75 57.75
Tropical forest reforestation 54.45 85.14
Onshore wind turbines 47.2 147.7
Alternative refrigerants 43.53 50.53
Utility-scale solar photovoltaics 42.32 119.13
Improved clean cookstoves 31.34 72.65
Distributed solar photovoltaics 27.98 68.64


Drawdown: The Most Comprehensive Plan Ever Proposed to Reverse Global Warming is a 2017 book created, written, and edited by Paul Hawken about climate change mitigation. Other writers include Katharine Wilkinson, and the foreword was written by Tom Steyer.

The book describes solutions arranged in order by broad categories: energy, food, women and girls, buildings and cities, land use, transport, materials, and "coming attractions".[7] The book provides a list of 100 potential solutions and ranks them by the potential amount of greenhouse gases each could cut, with cost estimates and short descriptions.[8][9]

The Guardian notes that the author has had influence in corporate sustainability efforts and that companies such as Interface and Autodesk have backed the project. It was intended that the book be supplemented with an online database, Project Drawdown, which was to compile the numerous types of solutions.[10]

Drawdown Review[edit]

A 2020 review of the findings of the research that lead to the 2017 book, was published as a 104 page pdf in 2020.[11]

See also[edit]


  1. ^ "Drawdown". Project Drawdown. Retrieved 13 January 2016.
  2. ^ a b c Makower, Joel (22 October 2014). "Two Steps Forward: Inside Paul Hawken's audacious plan to 'drawdown' climate change". GreenBiz. Retrieved 13 January 2016.
  3. ^ Book Passage (w/o date): "Paul Hawken - Drawdown (San Rafael)." Retrieved 16 March 2017.
  4. ^ Project Drawdown homepage. Retrieved 16 March 2017.
  5. ^ Project Drawdown (w/o date): "Solutions." Retrieved 16 March 2017.
  6. ^ "Table of solutions". drawdown.org.
  7. ^ Hawken, Paul (2017). Paul Hawken (ed.). Drawdown: The most comprehensive plan ever proposed to reverse global warming. New York, NY: Penguin Books. ISBN 9780143130444.
  8. ^ Schlossberg, Tatiana (2017-06-12). "How Much Do You Know About Solving Global Warming?". The New York Times. ISSN 0362-4331. Retrieved 2019-09-24.
  9. ^ Roberts, David (2017-05-10). "This book ranks the top 100 solutions to climate change. The results are surprising". Vox. Retrieved 2019-09-24.
  10. ^ Gunther, Marc (2014-10-22). "First look: environmental entrepreneur Paul Hawken's long-awaited new book". The Guardian. ISSN 0261-3077. Retrieved 2019-09-24.
  11. ^ Wilkinson, Katherine (2020). The Drawdown Review. Project Drawdown.

External links[edit]

  • www.drawdowneurope.org the Drawdown Europe Research Association project headquartered in Amsterdam, the Netherlands