William van Wijngaarden: “Evidence doesn’t support climate hysteria” | Tom Nelson Pod #403

William Van Wijngaarden explains the greenhouse effect as higher, colder radiating layers caused by more greenhouse gases, noting roles of CO2, water vapor, ozone, methane, and N2O, and emphasizing cloud uncertainties. He cites rising CO2 (320 ppm in 1960 to ~430), N2O and methane increases, but highlights non-monotonic temperature history including a 2000–2016 “hiatus,” and claims climate models overpredict warming by about threefold. He argues data do not show worsening trends in Arctic ice (recently flat), hurricanes, tornadoes, wildfires, or precipitation, and glacier retreat began after the Little Ice Age. He says ocean pH would drop from 8.18 to ~7.93 with doubled CO2, corals grow fastest in warm water, eliminating cattle would cool ~0.05°C, and fertilizer cuts risk food shortages. He calls for more observations (clouds, Argo oceans) and concludes warming is modest (~1°C ±1°C) and net-zero policies lack evidence. 00:00 Meet The Guest 03:19 Key Greenhouse Gases 05:44 Temperature Record Mysteries 07:20 Models Versus Reality 08:39 Infrared Spectrum Explained 10:53 Satellites Confirm Physics 11:58 Clouds And Uncertainty 15:10 Arctic Ice Reality Check 16:28 Glaciers Wildfires Hurricanes 20:12 Natural Variability Lesson 21:52 Ocean Acidification Facts 23:52 Corals And Warm Water 24:48 Methane And Livestock Myth 27:06 Fertilizer And Food Tradeoffs 28:51 CO2 Greening Benefits 30:56 Big Picture Conclusions 33:04 New Research Water Vapor 34:04 Observations Over Modeling 36:05 Measuring Oceans And Ice 39:21 Looking Ahead Calmly 41:16 Final Thanks And Wrap William’s website: https://wvanwijngaarden.info.yorku.ca/ ========= Slides, summaries, references, and transcripts of my podcasts: https://tomn.substack.com/p/podcast-s... My Linktree: https://linktr.ee/tomanelson1