Past guests include: 

  • Aaron McCreary — 2020-12-14: DITCHED: How Climate Fintech Is Disrupting Traditional Finance
  • Abby Hopper — 2022-05-05: How to Boost American-Made Clean Energy
  • Adnan Amin (2×) — 2020-04-09: Coronavirus and Clean Energy Investment: Four Expert Perspectives; 2022-04-07: Are Paris Climate Goals Still Within Reach?
  • Akunna Cook — 2020-04-30: Fighting Energy Injustice and Coronavirus in African American Communities
  • Alan Ahn — 2022-07-28: Rebooting America's Nuclear Supply Chain
  • Alex Dewar — 2020-09-03: Is There a Role for Oil and Gas in a Green Recovery?
  • Alex Laska — 2020-07-30: Relief, Rescue, Rebuild: The Case for a Sustainable Recovery
  • Alex Padilla — 2022-02-10: Senator Padilla on Climate, Equity & Partisanship
  • Alexander Bond — 2022-12-01: Retooling Old, Polluting Infrastructure for the Clean Economy
  • Alfred Griffin — 2020-12-08: DITCHED: New York's Divest/Invest Commitments
  • Alison Takemura — 2022-07-20: Newsflash: A Powerful Way to Expand Solar Access
  • Amy Harder (2×) — 2018-08-17: Too Alarmist? Not Alarmist Enough?; 2021-12-09: Amy Harder on Trends and Challenges in Getting to Net Zero
  • Amy Myers Jaffe — 2025-09-22: US vs China: Who's Winning the Energy Race?
  • Anca Gurzu — 2022-03-10: Russia's War Reshapes the Energy Transition
  • Andreas Karelas — 2020-11-12: Biden's Climate Mandate
  • Andrew Chang — 2020-12-14: DITCHED: How Climate Fintech Is Disrupting Traditional Finance
  • Andria McClellan — 2020-11-26: Why America Needs a Climate-Resilient Recovery
  • Ann Bluntzer Pullin — 2025-12-09: Inside the American Energy + AI Initiative
  • Ann Carlson — 2019-12-05: Big Oil on Trial
  • Anna Fendley — 2020-03-26: Aligning Labor and Climate in a Changing Economy
  • António Guterres — 2019-06-07: UN Chief Guterres: 'The Status Quo Is a Suicide'
  • Anukool Lakhina — 2025-01-24: Fire-killing robots and executive orders galore
  • Ari Matusiak (2×) — 2022-08-24: Newsflash: Going Electric? The New Climate Law Can Help; 2025-11-07: How FERC and Your Home Could Fast-Track AI Power
  • Arnold Schwarzenegger (3×) — 2019-04-18: Arnold Schwarzenegger on Terminating Pollution; 2019-05-31: Greta Thunberg on the Climate Crisis, Schwarzenegger, and Schnitzel; 2020-01-16: Why Arnold Schwarzenegger Backs Greta Thunberg and Bipartisanship
  • Asim Haque — 2025-06-26: The Grid's 'All Hands on Deck' Moment
  • Avery Ash — 2026-04-13: Will EVs Surge Amid Iran Oil Shocks?
  • Benjamin Bartle — 2021-11-12: COP26: Mobilizing Trillions in Climate Finance
  • Benji Backer (2×) — 2018-07-25: Millennials Seek Bipartisan Action on Climate; 2020-09-17: What Conservative Climate Activists Want
  • Beth Gardiner — 2019-06-28: The Invisible Killer
  • Bob Inglis — 2019-06-21: Will Republicans Ever Really Embrace Climate Action?
  • Bob Keefe — 2020-07-18: Bonus: Charting a Sustainable Recovery
  • Bruce Westerman — 2024-11-25: U.S. Rep. Bruce Westerman: What's next for permitting, geothermal, and the IRA?
  • Carlos Curbelo — 2019-05-17: Curbelo's Cancelled Climate Testimony and the 'Middle Ground'
  • Carol Berrigan — 2022-07-28: Rebooting America's Nuclear Supply Chain
  • Caroline Spears (2×) — 2020-10-08: Electing Climate Candidates; 2022-02-24: How to Elect State Leaders on Climate
  • Charles Hernick — 2019-09-11: What Conservatives and Climate Hawks Learned From the CNN Town Hall
  • Chris Barnard — 2024-07-29: RNC dispatches: The GOP's nascent climate pivot
  • Christian Grose — 2022-11-03: How Voting Rights and Redistricting Shape Climate Policy
  • Christy Goldfuss — 2022-06-23: Building the Arsenal of Clean Energy
  • Cindy Yeilding — 2020-09-03: Is There a Role for Oil and Gas in a Green Recovery?
  • Cody Hooven — 2019-10-24: Can Cities Save Us?
  • Dan Zarrilli — 2020-12-08: DITCHED: New York's Divest/Invest Commitments
  • Dana Peterson — 2022-06-23: Building the Arsenal of Clean Energy
  • Daniel Simmons — 2020-02-21: DOE Renewables Chief on the Geopolitics of Cleantech
  • Danny Davis — 2020-06-25: Saving the Planet for Sports and Craft Beer
  • David Crane — 2018-08-06: LIVE: 'What's So Upsetting?'
  • David Livingston — 2020-03-12: What the Oil Price War Means for Cleantech
  • David Roberts (3×) — 2019-12-19: David Roberts on 'Radical' Climate Action and Political Tribalism; 2021-10-14: David Roberts, Part 1: Glimmers of Climate Optimism; 2021-10-21: David Roberts, Part 2: Winning Political Messages
  • David Sandalow — 2022-04-07: Are Paris Climate Goals Still Within Reach?
  • David Titley — 2019-05-25: The Troubling Geopolitics of a Melting Arctic
  • Debbie Dingell — 2020-05-28: How to Jump-Start a Stalled Electric Vehicle Market
  • Demond Drummer — 2019-04-27: Origins of the Green New Deal ... and Lil Dicky
  • Divya Mankikar — 2020-09-22: DITCHED: A Dire Warning for Financial Markets
  • Durwood Zaelke — 2020-05-21: 'Need for Speed': Why Solving Climate Change Is About More Than CO2
  • Ed Markey (2×) — 2024-08-30: DNC dispatches: It's the climate economy, stupid!; 2024-09-06: DNC dispatches: Navigating America's skyrocketing energy demand
  • Ellen Dorsey — 2020-08-24: DITCHED: Origins of the Divest/Invest Movement
  • Ellen Hughes-Cromwick (2×) — 2020-09-24: How to Reboot the US Clean Energy Industry; 2022-06-23: Building the Arsenal of Clean Energy
  • Emily Atkin (2×) — 2019-12-05: Big Oil on Trial; 2019-12-31: Bonus: Full Interview With Emily Atkin of HEATED
  • Emily Burlinghaus — 2022-06-16: Newsflash: What to Do With Clean Energy Waste?
  • Emma Foehringer Merchant (2×) — 2019-08-30: How 2020 Presidential Candidates Stack Up on Climate (So Far); 2019-09-11: What Conservatives and Climate Hawks Learned From the CNN Town Hall
  • Ethan Zindler — 2020-04-09: Coronavirus and Clean Energy Investment: Four Expert Perspectives
  • Fran Pavley — 2020-07-18: Bonus: Charting a Sustainable Recovery
  • Gabriela Rodriguez — 2020-11-12: Biden's Climate Mandate
  • Garret Graves — 2024-06-21: Republican Garret Graves' data-driven approach to the climate crisis
  • Gavin Dillingham — 2020-09-03: Is There a Role for Oil and Gas in a Green Recovery?
  • Gina McCarthy — 2024-08-30: DNC dispatches: It's the climate economy, stupid!
  • Glenn Schwartz — 2020-11-06: What the Election Results (so far) Mean for Climate and Energy
  • Greg Bertelsen — 2025-07-28: What an 'Unapologetic Focus' on US Competitiveness Means for Climate Action
  • Greg Gershuny — 2020-05-14: EU Ambassador: 'Green Growth Will Be the Key' to Europe's Recovery
  • Greta Thunberg — 2019-05-31: Greta Thunberg on the Climate Crisis, Schwarzenegger, and Schnitzel
  • Harry Reid — 2019-08-23: Harry Reid on Why Democrats Need to End the Filibuster
  • Heather Reams (2×) — 2024-07-29: RNC dispatches: The GOP's nascent climate pivot; 2024-08-02: RNC dispatches: The fate of the IRA
  • Heather Zichal — 2021-10-28: Is American Offshore Wind Becoming a Reality?
  • Hillary O'Brien — 2026-04-27: Grid Utilization: Unlocking the Cheapest Megawatt in America
  • Ian Magruder — 2026-04-27: Grid Utilization: Unlocking the Cheapest Megawatt in America
  • J. R. DeShazo — 2020-07-18: Bonus: Charting a Sustainable Recovery
  • Jael Holzman — 2022-03-24: Mineral Security and Implications for the Energy Transition
  • James Chen — 2020-05-28: How to Jump-Start a Stalled Electric Vehicle Market
  • Jamie Margolin — 2019-09-18: Youth v. Climate Crisis
  • Jane Flegal — 2025-12-19: Unpacking a Volatile Year in Climate and Energy
  • Jane Long — 2020-01-23: The Urgency of Reaching Net Zero
  • Jared DeWese — 2020-04-30: Fighting Energy Injustice and Coronavirus in African American Communities
  • Jason Grumet — 2024-08-02: RNC dispatches: The fate of the IRA
  • Jay Duffy — 2022-07-07: What Comes After the Supreme Court's EPA Ruling?
  • Jay Johnson — 2020-12-31: A Blueprint for American Climate Action and a Modern Clean Energy Economy
  • Jeff Genzer — 2019-09-28: How States Are Leading the Way on Climate Policy
  • Jeff Navin — 2024-07-09: Making sense of nuclear's resurgence
  • Jeff St. John — 2022-01-06: How States Powered Climate Policy in 2021
  • Jennifer Granholm — 2022-09-29: How Clean Energy Can Strengthen Democracies
  • Jeremy Harrell — 2026-03-12: Energy Shocks: Iran, AI, and the 2026 Midterms
  • Jesse Jenkins — 2020-02-27: Decarb Madness! The Policy Bracket Competition
  • Jigar Shah — 2019-08-08: Climate Sees Some Legitimate Debate. Did Anyone Care?
  • Joe Sanberg — 2020-11-16: DITCHED: Greening the Banks
  • John Curtis (2×) — 2024-07-29: RNC dispatches: The GOP's nascent climate pivot; 2024-08-02: RNC dispatches: The fate of the IRA
  • John Kerry — 2020-04-23: John Kerry: 'I Am Optimistic' but 'Angry' This Earth Day
  • John Podesta (2×) — 2020-07-23: John Podesta on Fighting Climate Change and How to Win; 2024-08-16: John Podesta Celebrates the IRA for 'Catalyzing a Clean Energy Boom'
  • Jonah Gottlieb — 2019-09-18: Youth v. Climate Crisis
  • Josh Freed (5×) — 2020-01-23: The Urgency of Reaching Net Zero; 2020-07-02: The Path to a Net-Zero Economy: Where Do We Stand?; 2020-10-29: What to Watch for After Election Day; 2020-11-26: Why America Needs a Climate-Resilient Recovery; 2022-09-29: How Clean Energy Can Strengthen Democracies
  • Julian Brave NoiseCat — 2020-05-07: Julian Brave NoiseCat on Using Data for Climate Action
  • Julian Spector — 2022-10-27: Clean Energy Gatekeepers You've Never Heard Of
  • Justin Guay (2×) — 2020-08-31: DITCHED: 'Not Your Grandpa's Divestment Anymore'; 2021-11-12: COP26: Mobilizing Trillions in Climate Finance
  • Justine Calma — 2019-06-28: The Invisible Killer
  • Karyn Strickler — 2020-10-08: Electing Climate Candidates
  • Kathy Castor — 2019-05-09: Sunrise, Inslee, Paris and the Grim Reaper
  • Kelly Armstrong — 2024-08-02: RNC dispatches: The fate of the IRA
  • Kelly Ayotte — 2019-12-12: Where's the Action? COP25, Capitol Hill, and Insights From Sen. Ayotte
  • Kelsey Juliana — 2019-09-18: Youth v. Climate Crisis
  • Kevin Book — 2020-05-14: EU Ambassador: 'Green Growth Will Be the Key' to Europe's Recovery
  • Lauren McLean — 2024-09-06: DNC dispatches: Navigating America's skyrocketing energy demand
  • Lauren Sanchez — 2022-01-13: Unpacking Newsom's Bold $22B Climate Plan in the California Budget
  • Laurence Tubiana — 2022-04-07: Are Paris Climate Goals Still Within Reach?
  • Leah Rubin Shen — 2022-04-21: Rolling Out Historic Infrastructure Funding
  • Leah Stokes (3×) — 2020-02-27: Decarb Madness! The Policy Bracket Competition; 2020-07-30: Relief, Rescue, Rebuild: The Case for a Sustainable Recovery; 2020-09-15: DITCHED: Dark Money and Political Influence
  • Lee Anderson — 2020-03-26: Aligning Labor and Climate in a Changing Economy
  • Lindsey Walter — 2020-12-31: A Blueprint for American Climate Action and a Modern Clean Energy Economy
  • Lisa Garcia — 2022-05-26: Newsflash: EPA's 'Once-in-a-Lifetime' Opportunity
  • Liz Dennett — 2025-11-24: America's Critical Minerals Crisis
  • Lydia Avila — 2018-07-25: Millennials Seek Bipartisan Action on Climate
  • Maggie Thomas — 2020-06-04: The Left Unites Around a Justice-Centered Climate Platform
  • Malte Humpert — 2019-05-25: The Troubling Geopolitics of a Melting Arctic
  • Mandy Gunasekara — 2018-07-11: Top EPA Official Talks Policy Post Pruitt
  • Maria Korsnick — 2024-09-06: DNC dispatches: Navigating America's skyrocketing energy demand
  • Mariannette Miller-Meeks — 2024-07-29: RNC dispatches: The GOP's nascent climate pivot
  • Marsden Hanna — 2020-05-14: EU Ambassador: 'Green Growth Will Be the Key' to Europe's Recovery
  • Martin Heinrich (2×) — 2018-08-21: Senator Heinrich's 100% Clean Energy Vision; 2021-09-16: Senator Heinrich Is Not Compromising on Climate
  • Mary Nichols — 2018-10-26: California's Clean Air Czar on the Fight for Fuel Economy
  • Matt Myers — 2020-02-21: DOE Renewables Chief on the Geopolitics of Cleantech
  • Matt Petersen — 2020-07-18: Bonus: Charting a Sustainable Recovery
  • Michael Picker — 2018-09-19: California's Quest for Deep Decarbonization
  • Michael Wara — 2019-10-17: Burning Political Questions on the California Wildfires
  • Michelle Lujan Grisham — 2019-09-28: How States Are Leading the Way on Climate Policy
  • Michelle Mabson — 2020-10-29: What to Watch for After Election Day
  • Mike Gengler — 2020-12-31: A Blueprint for American Climate Action and a Modern Clean Energy Economy
  • Mike Levin — 2026-03-12: Energy Shocks: Iran, AI, and the 2026 Midterms
  • Miro Korenha — 2020-11-16: DITCHED: Greening the Banks
  • Monica Medina — 2020-11-16: DITCHED: Greening the Banks
  • Mustafa Santiago Ali — 2020-06-11: Protests, Pollution, Pandemics and Solutions
  • Naomi Davis — 2020-04-30: Fighting Energy Injustice and Coronavirus in African American Communities
  • Nathaniel Smith — 2020-07-02: The Path to a Net-Zero Economy: Where Do We Stand?
  • Nathaniel Stinnett (2×) — 2019-08-01: The Environmental Voter Problem; 2020-10-22: Environmental Voter Turnout and Tipping the Scales
  • Neil Chatterjee (2×) — 2020-12-03: Neil Chatterjee on FERC's Role in Enabling the Energy Transition; 2024-12-20: Neil Chatterjee: 'Make energy policy boring again!'
  • Nick Montoni — 2022-08-18: A New Era for US Energy Innovation
  • Nikos Tsafos — 2020-05-14: EU Ambassador: 'Green Growth Will Be the Key' to Europe's Recovery
  • Oni Blair — 2020-07-30: Relief, Rescue, Rebuild: The Case for a Sustainable Recovery
  • Pat Wood — 2020-08-20: Turning Texas Green (And Blue Too?)
  • Patrick McCully — 2020-11-16: DITCHED: Greening the Banks
  • Paul Tonko — 2019-11-22: Rep. Paul Tonko on the Landmark 100% Clean Economy Act
  • Rachel Fakhry — 2022-06-09: America's Clean Hydrogen Economy Gets a Jumpstart
  • Rachel Kyte (2×) — 2020-04-09: Coronavirus and Clean Energy Investment: Four Expert Perspectives; 2022-04-07: Are Paris Climate Goals Still Within Reach?
  • Rhiana Gunn-Wright — 2019-04-27: Origins of the Green New Deal ... and Lil Dicky
  • Rich Powell (2×) — 2020-04-09: Coronavirus and Clean Energy Investment: Four Expert Perspectives; 2025-03-03: Live from Winterfest: Rich Powell and Travis Kavulla talk GOP energy priorities
  • RJ Johnston — 2020-09-03: Is There a Role for Oil and Gas in a Green Recovery?
  • RL Miller — 2018-06-20: Fossil Fuel Dollars and Democrats
  • Romain Lacombe — 2019-06-28: The Invisible Killer
  • Rosamund Adoo-Kissi-Debrah — 2019-06-28: The Invisible Killer
  • Ryan Costello — 2026-03-12: Energy Shocks: Iran, AI, and the 2026 Midterms
  • Saad Amer — 2024-08-30: DNC dispatches: It's the climate economy, stupid!
  • Sam Arons — 2020-06-17: How Lyft Will Achieve 100% Electric Vehicles by 2030
  • Sammy Roth — 2022-09-16: Feeling the Heat, California Amps Up Climate Action
  • Sarah Smith — 2021-12-23: Build Back Never? And Tackling Methane Emissions
  • Saul Griffith — 2020-12-23: Saul Griffith on Mobilizing America to Fight Climate Change and Win the Future
  • Scott Kelly — 2019-08-16: Astronaut Scott Kelly: What Are We Doing to This Planet?
  • Scott Peters — 2024-07-19: Rep. Scott Peters on our 'old, small and dumb' grid
  • Sean Casten (3×) — 2019-11-08: Rep. Sean Casten on the New Democrat Path to Fighting Climate Change; 2024-08-30: DNC dispatches: It's the climate economy, stupid!; 2024-09-06: DNC dispatches: Navigating America's skyrocketing energy demand
  • Sebastián Piñera — 2019-10-04: Climate Strikes, the UN Summit and What They Mean for US Politics
  • Shane Battier — 2026-03-31: Win or Learn: Shane Battier on Energy's March Madness Moment
  • Stavros Lambrinidis — 2020-05-14: EU Ambassador: 'Green Growth Will Be the Key' to Europe's Recovery
  • Steve Fechheimer — 2020-06-25: Saving the Planet for Sports and Craft Beer
  • Steven Chu — 2020-01-30: What Do We Need in Our Climate Toolkit?
  • Steven Mufson — 2020-07-09: Beginning of the End for New Oil and Gas Pipelines?
  • Steven Rothstein — 2020-09-07: DITCHED: How Financial Regulators Can Protect Against Climate Risk
  • Sweta Chakraborty — 2020-03-19: What COVID-19 and Climate Change Have in Common
  • Sydney Bopp — 2025-09-08: Shutdowns and Shakeups: What's at Stake for US Energy
  • Terry Tamminen — 2018-05-04: LIVE: 'The Only Way to Save Ourselves'
  • Tia Nelson — 2020-04-23: John Kerry: 'I Am Optimistic' but 'Angry' This Earth Day
  • Tim Buckley — 2020-12-01: DITCHED: Why 2020 Could Be a Tipping Point for Fossil Fuels
  • Tim Echols — 2018-09-05: Taking 100% From 'Radical' to Reality
  • Tom Steyer (2×) — 2019-07-27: Tom Steyer on Why He's Running for President; 2020-08-27: Crafting California's Recovery Amid the Pandemic, Heatwave and Wildfires
  • Tony Reames — 2020-04-30: Fighting Energy Injustice and Coronavirus in African American Communities
  • Tony Seba — 2020-08-07: Tony Seba On Rethinking Disruption and the Future of Humanity
  • Trammell S. Crow — 2020-10-15: How a Group of Billionaire Donors Want to Reshape US Politics
  • Travis Kavulla — 2025-03-03: Live from Winterfest: Rich Powell and Travis Kavulla talk GOP energy priorities
  • Troy Distelrath — 2020-11-12: Biden's Climate Mandate
  • Uday Varadarajan — 2022-12-01: Retooling Old, Polluting Infrastructure for the Clean Economy
  • Valentina Kretzschmar — 2020-11-23: DITCHED: Oil Companies Under Pressure
  • Varun Sivaram — 2022-08-18: A New Era for US Energy Innovation
  • Vic Barrett — 2019-09-18: Youth v. Climate Crisis
  • Zach Exley — 2019-04-27: Origins of the Green New Deal ... and Lil Dicky