Recent Communications

• March 20, 2026: Super El Nino? Super Warming is the Main Issue.
• March 6, 2026: Sophie's Planet - Chapter 10: "Runaway Climate: The Point of No Return"
• February 19, 2026: Sophie's Planet - Prologue, Part III: "Politics"
• February 6, 2026: Another El Nino Already? What Can We Learn From It?
• January 30, 2026: Fix Our Forest Fiasco
• January 22, 2026: Sophie’s Planet - Prologue, Part II: “Mavericks”
• January 13, 2026: Sophie’s Planet - Prologue, Part I: “Three Things All at Once, All the Time”

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Videos

• November 2025: Climate Reckoning in ATLAS25 (Operaatio Arktis, Helsinki, Finland)
• February 2025: Global Warming Has Accelerated: An Intimate Conversation with Leading Climate Scientists (SDSN virtual event, moderated by Jeffrey Sachs)
• November 2023: Global Warming in the Pipeline: SDSN Webinar with James Hansen and Co-authors (SDSN virtual event, moderated by Jeffrey Sachs)
• November 2017: Scientific Reticence: A Threat to Humanity and Nature (Facing Future discussion with James Hansen, Pam Pearson, and Philip Duffy; COP-23, Bonn, Germany)
• November 2017: Nuclear Power? Are Renewables Enough? (Facing Future presentation with James Hansen and Michael Shellenberger; COP-23, Bonn, Germany)
• July 2017: Young People’s Burden: Requirement of Negative CO₂ Emissions (CSAS video excerpt produced by James Hansen and Sophie Kivlehan explaining the Earth System Dynamics study)
• March 2017: Sophie Sez #3: $1,000 for You – and a Better World for Your Children (Transcript)
• March 2017: Sophie Sez #2: Obama Missed a Golden Opportunity – but We Can Still Win! (Transcript)

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Recent Scholarly Publications

• Hansen, J.E., P. Kharecha, M. Sato, et al. 2025: Global warming has accelerated: are the United Nations and the public well-informed? , Environment: Science and Policy for Sustainable Development, 67(1), 6–44. https://doi.org/10.1080/00139157.2025.2434494
• Hansen, J.E., M. Sato, L. Simons, L.S. Nazarenko, I. Sangha, P. Kharecha, et al. 2023: Global warming in the pipeline, Oxford Open Climate Change, 3, Issue 1, kgad008.
• Li, J., B.E. Carlson, Y.L. Yung, D. Lv, J. Hansen, et al. 2022: Scattering and Absorbing Aerosols in the Climate System, Nature Reviews Earth & Environment, 3, 363–379.
• Hansen, J., 2021: Foreword: Uncensored science is crucial for global conservation, In DellaSala DA (ed). Conservation Science and Advocacy for a Planet in Peril. Amsterdam: Elsevier, 2021,451 pp.
• Beerling, D.J., E.P. Kantzas. M.R. Lomas, P. Wade, R.M. Eufrasio, P. Renforth, B. Sarkar, M.G. Andrews, R.H. James, C.R. Pearce, J.-F. Mercure, H. Pollitt, P.B. Holden, N.R. Edwards, M. Khanna, L. Koh, S. Quegan, N.F. Pidgeon, I.A. Janssens, J. Hansen, and S.A. Banwart, 2020: Potential for large-scale CO2 removal via enhanced rock weathering with croplands, Nature 583, 242-248, doi:10.1038/s41586-020-2448-9.
• Rye, C.D., J.Marshall, M. Kelley, G. Russell, L.S. Nazarenko, Y. Kostov, G.A.Schmidt, and J. Hansen, 2020: Antarctic Glacial Melt as a Driver of Recent Southern Ocean Climate Trends, Geophysical Research Letters 47, 11, doi: 10.1029/2019GL086892.
• Google Scholar profile (complete publication list and citation information)

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Popular Publications

• April 11, 2022: Nuclear power must be part of New York's energy solution, Commentary in Albany Times Union.
• September 8, 2021: A carbon tax is key to addressing the climate crisis -- and carbon dividends could get Congress to support one, Op-ed with Jonathan Marshall in the Boston Globe.
• June 1, 2021: Biden should impose a carbon fee immediately, Op-ed with Daniel M. Galpern in the Boston Globe.
• September 9, 2020: A socially and environmentally just way to flight climate change. Op-ed with Daniel H. Miller in the Boston Globe.
• October 10, 2019: Fueling the next Rim fire, Op-ed with Chad Hanson in LA Times.

→ Go to older popular publications

Books

• Storms of My Grandchildren — James Hansen (info / purchase link)

Selected Presentations

• February 29, 2012: Why I Must Speak Out About Climate Change. Presentation given at TED 2012 at Long Beach, California.
  + Download PDF, retouched (6 MB)
  + Download PPTX, retouched (6 MB)
  + TED video
  + YouTube video

Presentations

• October 2018: Aerosol Effects on Climate & Human Health: Urgent Research Needs Presentation in Xi'an, China at AGU-CAS Meeting.
  + Download PPT (20 MB)
  + Download PDF (3.3 MB)
• November 2017: Young People's Burden: Averting Climate Disaster Presentation in Bonn, Germany, at COP-23.
  + Download PDF (1.5 MB)
• March 2017: How Can Young People Take Charge of Their Future? Video taken at Williams College, MA on March 8
• December 2015: Climate Change and Energy: How Can Justice Be Achieved for Young People and Nature? Presentation given in Beijing, China on Dec. 22.
  + Download PDF (5.0 MB)
• February 2014: Symposium on a New Type of Major Power Relationship Presentation given at Counsellors Office of the State Council, Beijing, China on Feb. 24.
  + Download PDF (4.1 MB)

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TV and Radio Appearances

• April 7, 2017: TED Radio Hour: What Makes A Scientist Take A Stand?
• December 4, 2015: Democracy Now!: Amy Goodman interview in Paris
• July 26, 2015: CNN: CNN's Fareed Zakaria GPS

In News

• November 5, 2025: Yle (Finland) — Jenni Frilander, World-renowned climate scientist to Yle: Climate change will not stop at what is thought, but much worse is coming (article in Finnish; web browsers provide automatic translation). See video.
• February 4, 2025: The Guardian — Damian Carrington, Climate change target of 2°C is dead, says renowned climate scientist.
• February 4, 2025: Inside Climate News — Bob Berwyn, Hansen-led research documents global warming acceleration.
• November 2, 2023: The Guardian — Oliver Milman, Global heating is accelerating, warns scientist who sounded climate alarm in the 80s.
• November 2, 2023: Washington Post — Kasha Patel and Shannon Osaka, Famed climate scientist has a new, dire prediction.
• October 7, 2023: New York Times — Nadja Popovich and Adam Pearce, It's Not Your Imagination. Summers Are Getting Hotter.
• June 20, 2022: Washington Post — Eugene Robinson, To stop climate change, regulate carbon as a toxic substance.
• June 16, 2022: The Guardian — Fiona Harvey, Greenhouse gases must be legally phased out, US scientists argue.

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