Climate Change Debate: Bjørn Lomborg and Andrew Revkin | Lex Fridman Podcast #339

Framed as a debate but conducted as a nuanced conversation, Lomborg and Revkin try to locate a sane center between climate denial and climate alarmism. They argue that much disaster loss is driven by where and how humans build (vulnerability) rather than by CO2 alone, and that cheap, effective adaptation often beats expensive emissions cuts. Lomborg presses a cost-benefit framing, contending that money spent on tuberculosis, child nutrition, and e-procurement yields far more good per dollar than current decarbonization policy, while energy innovation (e.g., fourth-generation nuclear) is the real path to fixing climate. Revkin emphasizes the psychology and politics of belief, the failures of journalistic 'front-page thoughtism,' and distributed, bottom-up solutions over top-down treaties. They close on advice to young people: ditch doomerism, cultivate media literacy, and find a useful part to play.

• Lomborg cites an OECD survey finding 60% of people in rich countries believe global warming will likely lead to the extinction of mankind.
  00:08:51
• Revkin reveals Rush Limbaugh suggested on his radio show in 2009 that Revkin should kill himself.
  00:47:51
• Lomborg says he could not honestly argue the human species goes extinct from climate change without extreme parameter choices.
  01:13:57
• Lomborg claims EU 'Net Zero' efforts could cost about a trillion dollars a year while the net climate impact is nearly unmeasurable.
  02:04:43
• Revkin notes US energy R&D spending was about $5 billion in the 1970s and then 'dribbled away,' far less than defense or health research.
  02:48:51
• Lomborg cites a UN report saying you can't tell the difference between today's world and one where nobody cared about climate since 2005.
  03:40:25
• Revkin admits his environmentalist wife was happy when the Indian Point nuclear plant was shut down, while he thought it was a mistake.
  03:00:13
• Revkin reveals he had a stroke in 2011 and was tweeting/blogging about it while it was happening.
  04:06:28

• Lomborg says about 89% of Americans who own an electric car also own a conventional car for long trips.
  00:26:28
• Average human life expectancy rose from about 32 years in 1900 to about 74 today.
  01:02:24
• Chicago was physically raised one to two feet block by block in the 1850s using thousands of jacks to improve drainage.
  01:19:38
• A mid-20th-century 'hurricane drought' in the Atlantic was driven by European smog changing the Sahara's dust output, not global warming.
  01:40:23
• Since good satellite coverage began in 1980, last year had the lowest number of hurricanes worldwide despite heavy media coverage.
  01:45:03
• Lomborg estimates every dollar spent fighting tuberculosis yields about $43 of benefit.
  02:28:39
• Providing good nutrition for a child's first two years costs roughly $100 but yields about $4,500 in lifetime benefit.
  02:33:46
• Bangladesh cut cyclone deaths from hundreds of thousands in the 1970s to around 123 via warnings, cell phones, and elevated platforms.
  03:46:09
• Fossil fuels still supply about 80% of the world's energy, roughly the same share as 50 years ago.
  03:08:35
• Dan Kahan's research found people with the most science literacy cluster at BOTH extremes of climate views (dismissive and alarmed).
  03:18:30