Guest Speakers
and Presentations
HPAC regularly hosts presentations by their participants and other leading experts on a variety of global climate issues. Recordings, links to the presentation slides, and references, for these sessions are available below.
Guest Speaker Recordings, Slides & References
HPAC Rountable: Rebightening.org, NOAC, Upper Limit Project, HCI, Operaatio Arktis
Remarks by leaders of each of the participating organizations followed by open discussion among the organizations and the HPAC membership:
Clive Ellsworth of Nature-based Ocean and Atmospheric Cooling (NOAC),
Alan Gadian of Rebrighten.org,
Rafe Pomerance of Upper Limit Project,
Soumitra Das of Healthy Climate Initiative,
Viktor Jaakola of Operaatio Arktis.
Recording: HPAC Roundtable Nov. 14, 2024.
Janos Pasztor, Ted Parson, and Ron Baiman, Former member of the Climate Overshoot Commission (COC) and Executive Director of the Carnegie Climate Governance Initiative (C2G), advisor to the COC and UCLA Professor of Environmental Law and HPAC Steering Circle member and (retired) Economics Prof, respectively.
Recording: Coordination and Governance of Direct Climate Cooling Oct. 2, 2024
Slides (Baiman presentation): Direct Climate Cooling Coordination and Governance
Anni Pokela and Viktor Jaakkola, Leaders of Operaatio Arktis, a Finnish youth-led climate action group.
Recording: Preserving Polar Ice Caps and Preventing Global Tipping Points Aug. 22, 2024
Website: https://www.operaatioarktis.fi/
Franz Oeste and Clive Elsworth, Engineers and entrepreneurs who have worked for many years on Iron Salt Aerosol and other direct climate cooling and methane removal efforts.
Recording: Cooling the Planet with Natural tropospheric Aerosol Processes (NTAP) Aug. 8, 2024
Slides: Cooling the Climate with Natural Tropospheric Aerosol Processes (NTAP)
Peter Fiekowsky, MIT-educated physicist and Silicon Valley entrepreneur and philanthropist with 27 patents and a long-term leader of the climate restoration movement.
Recording: The Climate Restoration Roadmap July 14, 2024
Book (with Carole Douglis): The Only Future That Will Sustain the Human Race (2022).
Walker Lee, Postdoctoral Research Associate at the National Center for Atmospheric Research
Recording: Marine Cloud Brightening Global Impact Modeling June 27, 2024
Slides: The Design Space of Marine Cloud Brightening
Oswald Petersen, CEO of Atmospheric Methane Removal AG
Recording: GeoRestoration with Methane Removal May 16, 2024
Herb Simmens, Author of A Climate Vocabulary for the Future
Recording: Meeting on Climate Vocabulary May 2, 2024
Recording: Setting a Sea Level Rise Limit,The Upper Limit Project April 4, 2024
Slides: The Upper Limit Project
Peter Ward, Professor of Biology, Professor of Earth and Space Sciences, University of Washington
Recording: Our Flooded Earth: Not if, but when March 7, 2024
Slides: Our Flooded Earth: Not if, but when
Dennis Garrity, Chair of the Board, Global EverGreening Alliance.
Recording: Direct Climate Cooling Advocacy Feb. 22, 2024
Slides: What's the Plan for Climate Cooling Advocacy
Dr. Katherine Romanak, Research Professor at the Bureau of Economic Geology, Jackson School of Geosciences, UT Austin.
Recording: Carbon Capture - Monitoring, Safety, and Geologic Impact of Underground CO2 Injection Feb. 8, 2024
Gideon Futerman, Researcher, interaction of SRM and Global Catastrophic Risk, Center for the Study of Existential Risk, Cambridge
Recording: What's the worst that could happen? Interaction of SRM and Global Catastrophic Risk Jan. 25, 2024
Companion Materials: https://egusphere.copernicus.org/preprints/2023/egusphere-2023-1753/
Viktor Jaakkola, Operaatio Arktis and Hugh Hunt, Deputy Director, Cambridge Centre for Climate Repair,
Recording: Experiences and Impressions of COP28 Jan. 11, 2024
Robert Tulip, Researcher and Author, Climate change, Jungian psychology, mythology, astronomy, and religion.
Recording: Religion's Ambiguous Relationship with Climate Change Dec. 14, 2023
Companion Paper: Religion's Ambiguous Relationship with Climate Change
Bruce Melton PE, Director, Climate Change Now Initiative; President, Melton Engineering Services, Austin.
Recording: A Photo Journal of Climate Impact Across America Nov 30, 2023
Michael MacCracken, Chief Scientist for Climate Change, The Climate Institute.
Recording: Communicating with Decisionmakers on Climate Change November 16, 2023
Doug MacMartin, Associate Professor, Mechanical and Aerospace Engineering, Cornell University
Recording: Sunlight Reflection Methods Nov. 2, 2023
Slides: Overview 2023
Alan Gadian, Visiting Scientist, National Center for Atmospheric Science and Research Scientist, University of Leeds
Recording: Is the planet really being cooked? What can be done about it quickly? Oct. 5, 2023
Chris Field, Co-chair of Group of Experts on the Scientific Aspects of Marine Environmental Protection (GESAMP) Working Group 41 on ‘Ocean Interventions for Climate Change Mitigation
Recording: Conversation about the Overshoot Commission Report Sept 21, 2023
Podcast: HPAC takes over the Reviewer 2 (R2) podcast!
Chris Vivien, Co-Chair WG41 Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection (GESAMP)
Recording: Governance of Ocean Intervention for Climate Intervention Aug. 24, 2023
Slides: The London Protocal and Marine Geoengineering
Why it is Not a Good Idea to Fertilise Ocean Gyres?
Phoebe Barnard, Founding CEO/Exec Director of the Stable Planet Alliance
Recording: The Global Restoration Alliance July 13, 2023
Oliver Morton, Editor, The Economist; Author, The Planet Remade: How Geoegnineering Could Change the World
Recording: Conversation with Oliver Morton June 29, 2023
Graeme Taylor, Co-author (with Sue Vink) of Managing the risks of missing international climate targets May 4, 2023.
Recording: The Scientific Fallacies Preventing Effective Climate Mitigation
Link to Managing the risks of missing international climate targets.
David Spratt, Research Director at Breakthrough National Center for Climate Restoration
Recording: Conversation with David Spratt April 20th, 2023
David Keith, Professor of Applied Physics and Public Policy at Harvard, Founder of Carbon Engineering
Recording: Conversation with Dr. David Keith April 4, 2023
Zeke Hausfather, Climate Research Lead at Stripe, The Breakthrough Institute Senior Fellow
Recording: Conversation with Zeke Hausfather March 23 2023
Robert Chris, Researcher and Author, Systemic Factors influencing global climate policy; PhD, Philosophy
Robert Tulip, Researcher and Author, Climate change solutions; Australian Agency for International Development, 1989-2017;
Master’s Degree, Ethics and Ontology
Recording: Two Roberts Wrestle with Moral Hazards March 9, 2023
Dr. Martha Schwartz, Research Professor, Harvard Graduate School of Design,
Recording: The Urban Landscape and The Future of Cities February 26, 2023
Slides: Climate Change and the Urban Environment
Luke Iseman, Co-Founder, Make Sunsets
Recording: Make Sunsets Overview February 9, 2023
Brad Ack, Chief Executive Officer, Ocean Visions
Recording: Advancing Solutions for Ocean-Climate Restoration January 3, 2023
Dr. Shaun Fitzgerald OBE FREng, Director Centre for Climate Repair(CCRC), Cambridge
Recording: CCRC Climate Solutions Research Update December 15, 2022
Slides: The Three "R's" of Climate Repair
Conversation with Biochar Expert Panel: Shannon Lee, John Frank, Tony Miller, Brian von Herzen, Matt Lucas, Andrew North and Matt Beres.
Recording: Biochar: What it is and what can be done with it December 1, 2022
Slides: BioChar Herzt Summer Workshop
Peter Eisenberger, "Rapid Scaling of Equitable Climate Innovations"
Recording: Rapid Scaling of Equitable Climate Innovations November 17, 2022
Andrew Lockley, Research Associate, University College London
Recording: The Case for Geoengineering October 20, 2022
Dr. Jesse Reynolds, Executive Secretary, The Climate Overshoot Commission
Recording: The Climate Overshoot Commission September 8, 2022
Slides: Dr. Jesse Reynolds, Climate Overshoot Commission HPAC Presentation
Soumitra Das, President, Healthy Climate Initiative
Slides: Climate Benefit Concert for Saving the Himalayan Glaciers August 5, 2022
Ye Tao, Founder & Director, MEER
Recording: Solar Radiation Management: Cooling the Planet with Surface Reflectors April 21, 2022
Robert Tulip, Director, Iron Salt Aerosol
Slides: 1. Climate Arithmetic 2. Global Solutions 3. A Starting Point April 7, 2022
Stephen Salter, Professor Emeritus, Engineering Design, University of Edinburgh
Recording: How Marine Cloud Brightening Can Cool the Planet March 23, 2022
David Mitchell, Associate Research Professor (Emeritus), Division of Atmospheric Sciences, Desert Research Institute, Reno, Nevada
Slides: Can Cirrus Clouds Cool the Arctic? March 10, 2022
Will Burns, Visiting Professor, Environmental Policy & Culture Program, Northwestern University
Recording: Climate Change Solutions Governance Issues July 3, 2022
Brian Von Herzen, Executive Director, The Climate Foundation
Ron Baiman, Author and Associate Professor of Economics, Benedictine University
Recording: Our Two Climate Crises March 5, 2022
Slides: Our Two Climate Crises Challenge
References: Our Two Climate Crises Challenge: Urgent Cooling and Long-Run GHG Removal & Ecological Regeneration August 1, 2022
Tom Goreau, President, Global Coral Reef Alliance
Recording: Biorock Technology for Marine Ecosystem Restoration, Shore Protection, and Climate Change Adaptation Feb. 25, 2022
Bru Pearce, Author and Director of Management, Envisionation
Slides: Envisionation: Biosphere Restoration Plan February 2022
Rafe Pomerance, Senior Arctic Policy Fellow, Woodwell Climate Research Center,
Recording: A Conversation with Rafe Pomerance December 16, 2021
References:
Herb Simmens, Author of A Climate Vocabulary of the Future
Slides: Climate Restoration Through the Climate Quad September 29, 2021