Climate Chat

In this Climate Chat episode, host Dan Miller discusses optimism bias as it relates to climate change.

Related reports and studies:

Emphasizing urgency of climate change is insufficient to increase policy support:

https://www.sciencedirect.com/science/article/pii/S2590332221001160

Cognitive Biases in Climate Risk Management

https://www.braced.org/contentAsset/raw-data/533c48ab-749c-49e9-971b-3d0a83293256/attachmentFile

The Psychology of Climate Change

https://climatecommunications.earth/whitepaper-articles/the-psychology-of-climate-change/

Climate Chat programs are available here: https://www.youtube.com/@climatechat/streams

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Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat episode, host Leon Simons discusses the impacts of global warming over generations of his Dutch family.

Climate Chat programs are available here: https://www.youtube.com/@climatechat/streams

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Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat episode, hosts Leon Simons and Dan Miller discuss the state of climate change in 2026.

Climate Chat programs are available here: https://www.youtube.com/@climatechat/streams

Please Like and Subscribe!

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat episode, Host Dan Miller reviews the major climate stories of the year and gives a quick recap of the 2025 Climate Chat programs.

Climate Chat programs are available here: https://www.youtube.com/@climatechat/streams

Please Like and Subscribe!

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat Shorts episode, host Dan Miller presents why Solar Geo-engineering (a.k.a., Solar Radiation Management or SRM) is now required to avoid more than 2ºC of warming and catastrophe.

To listen to the presentation along with follow-on Q&A (about 1 hour total), see this video: https://youtube.com/live/icb_op9_41I

For more in-depth programs on SRM/Solar-Geoengineering, see the Climate Chat SRM/Solar-Geoengineering playlist: https://www.youtube.com/playlist?list=PLep9tQgCqjCoWPp-16Oxhjt9QPvtynzql

For more detailed information on certain points made in this presentation, see the following Climate Chat programs:

Solar-Geoengineering Can Stop AMOC Collapse with Douglas MacMartin

https://youtube.com/live/lPnTQIXZnDc

Solar-Geoengineering Can Reduce Overshoot & Emissions, with Peter Irvine

https://youtube.com/live/NfCATLYm8c4

+3ºC by 2050?!

https://youtube.com/live/TmZbwLC-kEw

Happy Birthday Stacey!!

Please Like and Subscribe!

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat episode, we answer listener questions posted on the YouTube Live chat, X/Twitter, and BlueSky. You can also forward questions ahead of the program to ClimateChatClub (at) gmail (dot) com.

Please Like and Subscribe!

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat episode, we interview the Chair of the California Energy Commission (CEC), David Hochschild, about the CEC's goal of moving California to 100% clean energy.

David Hochschild was appointed chair of the California Energy Commission by Governor Gavin Newsom in February 2019. He fills the environmental position on the five-member Commission where four of the five members are required by law to have professional training in specific areas - engineering or physical science, environmental protection, economics, and law.

Chair Hochschild's career has spanned public service, environmental advocacy, and the private sector. He first got involved in the solar energy field in 2001 in San Francisco as a special assistant to Mayor Willie Brown where Chair Hochschild launched a citywide $100 million initiative to put solar panels on public buildings. He also cofounded the Vote Solar Initiative, a 100,000-member advocacy organization promoting solar policies at the local, state, and federal levels. He was executive director of a national consortium of leading solar manufacturers and worked for five years at Solaria, a solar company in Silicon Valley. From 2007 to 2008, he served as a commissioner at the San Francisco Public Utilities Commission.

For his work to advance clean energy, Chair Hochschild was awarded the Sierra Club's Trailblazer Award, the American Lung Association's Clean Air Hero Award, and the U.S. Department of Energy's Million Solar Roof True Champion Award. In 2024, he was named the American Energy Society’s Person of the Year: United States. Chair Hochschild holds a bachelor of arts from Swarthmore College and a master of public policy from the John F. Kennedy School of Government at Harvard University. He also was a Coro Fellow in Public Affairs.

David's CEC page: https://www.energy.ca.gov/about/commissioners/david-hochschild

Follow David on X/Twitter: @ChairHochschild

Follow the CEC on X/Twitter: @CalEnergy

Follow the CEC on Bluesky: @calenergy.bsky.social

Please Like and Subscribe!

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat episode, Climate Chat host Dan Miller discusses the UN COP30 (Conference of the Parties) in Belém, Brazil that recently concluded, and the current state of global plan for climate action.

Please Like and Subscribe!

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat episode, Climate Chat hosts Dan Miller and Leon Simons discuss climate facts that everyone should (but don't) know regarding the amount of warming we can expect, the availability of solutions, and the opportunity to avoid the worst outcomes (that we are currently headed for).

Please Like and Subscribe!

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams

In this Climate Chat episode, we interview glaciologist and climate scientist Eric Rignot about the Thwaites glacier in Antarctica (a.k.a., the Doomsday Glacier), the broader West Antarctic Ice Shelf (WAIS), Greenland, and their impact on sea level rise.

Professor Rignot is a world-renowned glaciologist who studies the effects of global climate change on polar ice sheets. He uses satellites, airborne sensors, field data and numerical models to understand the dynamics of glacier ice along the coasts of the Antarctic and Greenland ice sheets as well as in Alaska and Patagonia. His research has documented major acceleration of ice loss as a result of climate change, and has been widely covered by The New York Times, Los Angeles Times, Washington Post, BBC, CNN, National Geographic and many others. In addition to his appointment at the University of California at Irvine, he is a Senior Research Scientist at NASA’s Jet Propulsion Laboratory (JPL) where he leads several NASA-funded projects.

Eric's UCI page: https://ps.uci.edu/node/2110

Eric's JPL page: https://www.jpl.nasa.gov/site/research/rignot/

Eric's Google Scholar page (research listing):

https://scholar.google.com/citations?hl=en&user=IEEkR3gAAAAJ&view_op=list_works&sortby=pubdate

Follow Eric on Twitter/X: @erignot

Please Like and Subscribe!

Dan Miller has been giving talks around the world on the need for urgent climate action for over 20 years. He is co-founder of The Roda Group, a climate-tech venture capital group, and he serves as an advisor for other climate funds and climate-focused non-profit groups. He started Climate Chat in 2021 on Clubhouse and added YouTube in 2023.

Follow Dan Miller on X/Twitter: @danmiller999

Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social

Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on the 2023 "Global Warming in the Pipeline" paper that discussed the recent acceleration in global warming. Leon's work has focused recently on changes in aerosol emissions from ships and the impact of those changes on climate change. You can access Leon's research writings here:

https://www.researchgate.net/profile/Leon-Simons

Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬

Follow Leon on Patreon: https://www.patreon.com/c/LeonSimons/home

Follow Stacey Randecker on X/Twitter: @DrivingMzStacey and Bluesky: @bikingmzstacey.bsky.social

Follow Eli Rabani on X/Twitter: @radsci and Bluesky: @radsci.bsky.social

You can leave a question in the YouTube Live chat. Please begin your question with "Question:" to make it easy for our mods to spot it.

For more Climate Chat episodes, see our YouTube home page:

https://www.youtube.com/@climatechat

For recent YouTube Live Climate Chat programs:

https://www.youtube.com/@climatechat/streams