Climate Chat

Climate Chat

By Dan Miller and Leon Simons, hostsScienceEarth Sciences
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Climate Chat episodes

  • Global Warming➔Fewer Clouds➔More Warming! with George Tselioudis
    In this Climate Chat episode, we speak with NASA climate scientist George Tselioudis about his recent research paper on cloud feedbacks in the climate system titled "Oceanic cloud trends during the satellite era and their radiative signatures."
    Dr. Tselioudis is a researcher at the NASA Goddard Institute for Space Studies where he heads a research team that analyzes observations and model simulations to investigate cloud, radiation, and precipitation changes with climate and the resulting radiative feedbacks. Research focuses on understanding the relationships between atmospheric dynamics and cloud changes, examining processes such as midlatitude storm properties and their climate variability, and on applying advanced techniques to derive atmospheric states from cloud property retrievals. Dr. Tselioudis received the American Geophysical Union Charles Falkenberg Award in 2004.
    George's NASA web page: https://www.giss.nasa.gov/staff/gtselioudis.html
    "Oceanic cloud trends during the satellite era and their radiative signatures" research paper:
    On Climate Dynamics Journal website (paywall):
    https://link.springer.com/article/10.1007/s00382-024-07396-8
    On Research Square (preprint, no paywall):
    https://assets-eu.researchsquare.com/files/rs-3974146/v1/df98526c-73b7-4e74-b304-f9740fb8ed1d.pdf?c=1724357255
    Science.org article on the research: "Earth’s clouds are shrinking, boosting global warming":
    https://www.science.org/content/article/earth-s-clouds-are-shrinking-boosting-global-warming
    Follow George on BlueSky: @neapolitis.bsky.social
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    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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
    1 hr 29 min
  • 2024 Was +1.6ºC! What's Next? with Leon Simons
    In this Climate Chat episode, returning guest climate scientist Leon Simons will discuss the 2023/2024 accelerated global warming and what the data suggests will lead us to in the future.
    Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on last year's "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
    James Hansen's May 2024 update: "Comments on Global Warming Acceleration, Sulfur Emissions, Observations"
    https://www.columbia.edu/~jeh1/mailings/2024/MayEmail.2024.05.16.pdf
    Landmark "Global Warming in the Pipeline" paper by James Hansen, Leon Simons, and others:
    https://academic.oup.com/oocc/article/3/1/kgad008/7335889
    Climate Chat interview with James Hansen:
    https://youtube.com/live/8Ag3UVSrlhE
    Prior Climate Chat programs with Leon Simons:
    Climate Chat: Wake Up Call! What Now? with Leon Simons
    https://youtube.com/live/ZDtgCaxV6Zs
    Jevons Paradox & the Rebound Effect with Leon Simons
    https://youtube.com/live/hv5fwP_3L2Y
    James Hansen's Update On Global Warming Acceleration with Guest Leon Simons
    https://youtube.com/live/OcdZvdSh9LQ
    2023: +1.54ºC! Why Is Global Warming Accelerating? Interview with Leon Simons
    https://youtube.com/live/XCPf8vvedSI
    ----------------
    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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
    2 hr 24 min
  • Climate Change: 2024 in Review
    In this Climate Chat discussion, we will review the major climate change issues, research findings, and events of 2024.
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    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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
    2 hr 13 min
  • AMOC Weakening Faster Than IPCC Models Say with Climate Scientist Gabriel Pontes
    In this Climate Chat discussion, we speak with climate scientist Gabriel Pontes about his recent paper in Nature Geoscience titled "Weakening of the Atlantic Meridional Overturning Circulation driven by subarctic freshening since the mid-twentieth century." Gabriel's research shows that the AMOC is weakening faster than previous climate models show, including models used by the Intergovernmental Panel on Climate Change (IPCC). The faster weakening is caused by a number of factors including fresh water intrusion into the North Atlantic Ocean from melting Arctic ice.
    Gabriel M. Pontes is a research scientist at the Climate Change Research Centre (CCRC) and the Australian Centre for Excellence in Antarctic Sciences (ACEAS) at the University of New South Wales (UNSW).
    His work resolves around the oceans' role in the climate system, how oceans had been affected by ice sheets, carbon dioxide and solar radiation in the past and what we can learn from that to inform the future of the oceans. To achieve this he perform simulations with global climate. His recent focus has been focusing on the ocean's response to ice sheet melting and how it impacts global and regional climate.
    Gabriel's UNSW web page: https://www.unsw.edu.au/staff/gabriel-pontes
    Nature Geoscience paper (paywall): https://www.nature.com/articles/s41561-024-01568-1
    ResearchGate (free PDF of the paper): https://www.researchgate.net/publication/385921849_Weakening_of_the_Atlantic_Meridional_Overturning_Circulation_driven_by_subarctic_freshening_since_the_mid-twentieth_century
    Article on Gabriel's paper in The Conversation: https://theconversation.com/meltwater-from-greenland-and-the-arctic-is-weakening-ocean-circulation-speeding-up-warming-down-south-238302
    Follow Gabriel's UNSW research group on X/Twitter: @ccrc_unsw
    Follow Gabriel's UNSW research group on Bluesky: @ccrc.bsky.social
    ----------------
    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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
    1 hr 48 min
  • Being Frank & Honest About Climate Change with Climate Scientist Kevin Anderson
    In our third interview with climate scientist Kevin Anderson, we will cover why climate scientists need to be more frank and honest about emissions scenarios, why the rich cutting their emissions is key to staying below 2ºC of warming, the need for solar geo-engineering, COP29, and other subjects.
    Kevin Anderson holds the Zennström professorship at Uppsala University and is chair of energy and climate change at the School of Mechanical, Aerospace and Civil Engineering (MACE) at the University of Manchester. He has been Deputy and Interim Director of the Tyndall Centre. He is a non-executive director of Greenstone Carbon Management. Kevin is research active with recent publications in Science, Nature and Nature Geosciences.
    Kevin engages widely across all tiers of government (UK and Sweden) on issues ranging from shale gas, aviation and shipping to the role of climate modelling (IAMs), carbon budgets and ‘negative emission technologies. His analysis previously contributed to the framing of the UK’s Climate Change Act and the development of national carbon budgets.
    Kevin has a decade’s industrial experience, principally in the petrochemical industry. He is a chartered engineer and a fellow of the Institution of Mechanical Engineers.
    Kevin's page on Tyndall ºCentre's website: https://tyndall.ac.uk/people/kevin-anderson/
    Kevin's Climate Uncensored website: https://climateuncensored.com
    Follow Kevin on X/Twitter: @KevinClimate or Bluesky: @kevinclimate.bsky.social
    Nick Breeze's recent interview with Kevin: https://t.co/W98sDuC6hq
    1st Climate Chat interview with Kevin: "Going Beyond Dangerous" (May 2021, audio only)
    Part 1: https://youtu.be/WQCofG9Urr4
    Part 2: https://youtu.be/iiE5A78jzOg
    2nd Climate Chat interview with Kevin: "Climate Change: Choosing to Fail" (March 2024)
    https://youtu.be/tVFSJINGueM
    ----------------
    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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
    2 hr 16 min
  • AI Energy Efficiency Will Increase AI Energy Usage!
    In this Climate Chat episode, we will discuss how the Rebound Effect (a.k.a Jevons' Paradox) is impacting and will impact computer/data center/AI energy usage. While computer efficiency has improved by a factor of 10 TRILLION in past 80 years, computer energy use has only increased over that period and is expected to grow multiple-fold over the next 6 years as data center and AI energy use soars. We will discuss how improving the energy efficiency of computers will make the problem worse, not better.
    Previous Climate Chat program "Jevons Paradox and the Rebound Effect": https://youtube.com/live/hv5fwP_3L2Y
    Energy sufficiency and rebound effects - Concept paper (see Chapter 2 on the Rebound Effect):
    https://www.energysufficiency.org/static/media/uploads/site-8/library/papers/sufficiency-rebound-final_formatted_181118.pdf
    Rebound Effects and ICT: A Review of the Literature:
    https://gossart.wp.imt.fr/files/2014/10/Rebound_Effects_and_ICT.pdf
    EMERGING TRENDS FOR ENERGY CONSUMPTION WITHIN ICT DEVICES:
    https://www.ijeast.com/papers/136-141,Tesma503,IJEAST.pdf
    The Energy Demand of ICT: A Historical Perspective and Current Methodological Challenges:
    https://ethz.ch/content/dam/ethz/special-interest/mtec/cepe/cepe-dam/documents/people/baebischer/Aebischer_Hilty_2014_Energy_Demand_ICT_History_Challenges_AAM.pdf
    ----------------
    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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 programs:
    https://www.youtube.com/@climatechat/streams
    1 hr 9 min
  • COP29 Debacle: What Now? with Dan Kammen
    In this Climate Chat episode, we will discuss the COP29 climate conference in Baku, Azerbaijan with Dan Kammen, a Professor of Energy in the Energy and Resources Group at the University of California at Berkeley. We will also discuss the climate implications of the next Trump administration and other topics.
    Dr. Daniel M. Kammen is a Professor at the University of California, Berkeley, with parallel appointments in the Energy and Resources Group where he serves as Chair, the Goldman School of Public Policy where he directs the Center for Environmental Policy, and the department of Nuclear Engineering. Kammen is the founding director of the Renewable and Appropriate Energy Laboratory (RAEL; http://rael.berkeley.edu), and was director of the Transportation Sustainability Research Center from 2007 – 2015.
    He was appointed by then Secretary of State Hillary Clinton in April 2010 as the first energy fellow of the Environment and Climate Partnership for the Americas (ECPA) initiative. He began service as the Science Envoy for U. S. Secretary of State John Kerry in 2016, but resigned over President Trump’s policies in August, 2017. He has served the State of California and US federal government in expert and advisory capacities, including time at the US Environmental Protection Agency, US Department of Energy, the Agency for International Development (USAID) and the Office of Science and Technology Policy.
    Dr. Kammen was educated in physics at Cornell (BA 1984) and Harvard (MA 1986; PhD 1988), and held postdoctoral positions at the California Institute of Technology and Harvard. He was an Assistant Professor and Chair of the Science, Technology and Environmental Policy Program at the Woodrow Wilson School at Princeton University before moving to the University of California, Berkeley. Dr. Kammen has served as a contributing or coordinating lead author on various reports of the Intergovernmental Panel on Climate Change since 1999. The IPCC shared the 2007 Nobel Peace Prize.
    In 2020 Kammen was elected to the American Academy of Arts & Sciences.
    Kammen helped found over 10 companies.
    UC Berkeley website: https://erg.berkeley.edu/people/kammen-daniel-m/
    Dan' Kammen's personal website: https://kammen.berkeley.edu
    Follow Dan Kammen on BlueSky: @dankammen.bsky.social
    ----------------
    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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 programs:
    https://www.youtube.com/@climatechat/streams
    1 hr 22 min
  • How to Govern Solar Geoengineering - with Shuchi Talati
    In this Climate Chat episode, we will discuss the challenge of governing solar geoengineering (also called Solar Radiation Management or Sunlight Reflection Methods) with Shuchi Talati who is the Founder & Executive Director of The Alliance for Just Deliberation on Solar Geoengineering.
    Dr. Shuchi Talati is a climate technology governance expert and founder of The Alliance for Just Deliberation on Solar Geoengineering (DSG), a nonprofit organization working towards just and inclusive deliberation about research and potential use of solar geoengineering. Prior to DSG, she most recently served as a Presidential Appointee in the Biden-Harris Administration at the U.S. Department of Energy where she was focused on creating just and sustainable frameworks for carbon dioxide removal. Dr. Talati has previously held roles in academia and civil society advising on policy and governance for emerging climate technologies, including as a Visiting Scholar at the Kleinman Center for Energy Policy at the University of Pennsylvania, an AAAS/AIP Congressional Science Fellow in the U.S. Senate and the Fellow on geoengineering research governance and public engagement at the Union of Concerned Scientists. She has a BS in environmental engineering from Northwestern University, an MA in climate and society from Columbia University, and PhD from Carnegie Mellon in engineering and public policy.
    Dr. Talati is a member of the oversight committee for the Exploring Climate Cooling programme, directed and funded by the Advanced Research and Invention Agency (ARIA), a UK R&D funding agency. This independent committee is designed to strengthen the governance of the programme. She is also an a member of the Advisory Board of Co-CREATE, a contributing author to the American Geophysical Union’s Ethical Framework for Climate Intervention Research, Experimentation, and Deployment, and was the co-chair of the Independent Advisory Committee to oversee SCoPEx, an effort to provide oversight for the proposed solar geoengineering experiment by Harvard University.
    Follow Shuchi on X/Twitter: @sktalati and Bluesky: ‪@sktalati.bsky.social‬
    The Alliance for Just Deliberation on Solar Geoengineering: https://sgdeliberation.org
    ----------------
    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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 programs:
    https://www.youtube.com/@climatechat/streams
    1 hr 22 min
  • Climate Chat: Wake Up Call! What Now? with Leon Simons
    In this Climate Chat episode, we will discuss the U.S. election and the potential impact it will have on climate action -- both good and bad -- and the actions we can take. Climate scientist Leon Simons will take us through recent climate change data including ocean warming data that shows a fundamental change in the past two years. Climate change is based on physics and it doesn't care about politics, but climate change will have an increasing impact on politics -- and all of us -- in this decade and beyond.
    Leon Simons is a climate scientist based in the Netherlands. He was a co-author with James Hansen on last year's "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
    James Hansen's May 2024 update: "Comments on Global Warming Acceleration, Sulfur Emissions, Observations"
    https://www.columbia.edu/~jeh1/mailings/2024/MayEmail.2024.05.16.pdf
    Landmark "Global Warming in the Pipeline" paper by James Hansen, Leon Simons, and others:
    https://academic.oup.com/oocc/article/3/1/kgad008/7335889
    Climate Chat interview with James Hansen:
    https://youtube.com/live/8Ag3UVSrlhE
    Follow Leon on X/Twitter: @LeonSimons8 and Bluesky: ‪@leonsimons.bsky.social‬
    Climate Change: Choosing to Fail, with Climate Scientist Kevin Anderson
    https://youtu.be/tVFSJINGueM
    ----------------
    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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 programs:
    https://www.youtube.com/@climatechat/streams
    2 hr 53 min
  • Climate Scientists As Climate Activists with Aaron Thierry
    In this Climate Chat episode, we speak with Aaron Thierry about how climate scientists can play a bigger role in driving action on climate change by becoming more involved in climate activism.
    Dr. Aaron Thierry has background as an ecological scientist, science communicator and environmental campaigner. Having received his original PhD in ecology from the University of Sheffield, he went on to a position as a postdoc on a project researching climate feedbacks in the Arctic. Aaron subsequently left academia to focus his efforts on environmental activism and become a youth campaign coach working for a leading UK environmental charity. However, he has returned to his studies to commence a new PhD at Cardiff University's School of Social Sciences looking at scientific-activism.
    Here are some of Aaron's most recent papers on scientific activism:
    From Publications to Public Actions: The Role of Universities in Facilitating Academic Advocacy and Activism in the Climate and Ecological Emergency
    https://www.frontiersin.org/journals/sustainability/articles/10.3389/frsus.2021.679019/full
    “No research on a dead planet”: preserving the socio-ecological conditions for academia
    https://www.frontiersin.org/journals/education/articles/10.3389/feduc.2023.1237076/full
    Actions speak louder than words: the case for responsible scientific activism in an era of planetary emergency
    https://royalsocietypublishing.org/doi/10.1098/rsos.240411
    Civil disobedience by scientists helps press for urgent climate action
    https://www.nature.com/articles/s41558-022-01461-y
    Follow Aaron on X/Twitter: @ThierryAaron
    Follow Aaron on Bluesky: @thierryaaron.bsky.social
    ----------------
    Follow Dan Miller on X/Twitter: @danmiller999
    Follow Dan Miller on Bluesky: @danmiller999.bsky.social and @climatechat.bsky.social
    To join the Zoom discussion, visit Dan's Clubhouse room. The Clubhouse link is provided in Dan's Twitter feed. You can also 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 programs:
    https://www.youtube.com/@climatechat/streams
    1 hr 39 min

About Climate Chat

From the publisher's feed

Climate Chat is a channel where we discuss all things climate with scientists, technologists, authors, advocates, communicators and others helping us understand and fight climate change.