# Medieval Warm Period on The No Agenda Show

Medieval Warm Period comes up in 3 chapters across 3 episodes of The No Agenda Show, from March 2018 to April 2021.

- **Chapters:** 3
- **Episodes:** 3
- **Discussed:** March 2018 – April 2021
- **Related topics:** [Michael Mann](https://search.noagendashow.net/topic/michael-mann.md), [Hockey Stick Graph](https://search.noagendashow.net/topic/hockey-stick-graph.md), [Climate Change](https://search.noagendashow.net/topic/climate-change.md), [Climate Data](https://search.noagendashow.net/topic/climate-data.md), [Geophysics](https://search.noagendashow.net/topic/geophysics.md), [Hurricane Maria](https://search.noagendashow.net/topic/hurricane-maria.md), [Ipcc](https://search.noagendashow.net/topic/ipcc.md), [Little Ice Age](https://search.noagendashow.net/topic/little-ice-age.md), [Npr](https://search.noagendashow.net/topic/npr.md)

## Chapters 1–3 of 3

### Geological History, Medieval Warm Period, and Hockey Stick

- **Episode:** [1336: Climate Crisis Special](https://search.noagendashow.net/episode/1336-climate-crisis-special.md)
- **Published:** 2021-04-08
- **Time:** 1:32:18–1:36:34
- **Transcript:** https://search.noagendashow.net/episode/1336-climate-crisis-special/chapter/geological-history-medieval-warm-period-and-hockey-stick.md

A geologist argues that climate has always changed, citing the Medieval Warm Period (1000 AD) as a time of prosperity that was later "erased" by Michael Mann's hockey stick graph. The speaker claims he was denied an NPR interview because he refused to attribute warming to human activity. He asserts that the current "irrational hysteria" in the media ignores 100 previous studies confirming that historical warming was global and natural.

Keywords: [hurricane maria](https://search.noagendashow.net/topic/hurricane-maria.md), [medieval warm period](https://search.noagendashow.net/topic/medieval-warm-period.md), [little ice age](https://search.noagendashow.net/topic/little-ice-age.md), [hockey stick graph](https://search.noagendashow.net/topic/hockey-stick-graph.md), [michael mann](https://search.noagendashow.net/topic/michael-mann.md), [npr](https://search.noagendashow.net/topic/npr.md)

### Dr. Tim Ball Interview, Climate History Rewriting

- **Episode:** [1169: Hockeystick Hoax](https://search.noagendashow.net/episode/1169-hockeystick-hoax.md)
- **Published:** 2019-09-05
- **Time:** 1:31:20–1:36:49
- **Transcript:** https://search.noagendashow.net/episode/1169-hockeystick-hoax/chapter/dr-tim-ball-interview-climate-history-rewriting.md

In a featured audio clip, Dr. Tim Ball explains his defense against Michael Mann's lawsuit, alleging that Mann "rewrote climate history" by removing the Medieval Warm Period from his models. Ball claims Mann grafted modern instrumental temperature records onto cherry-picked tree ring data to create the illusion of unprecedented warming. The segment criticizes the UN IPCC for using the hockey stick graph as a primary tool for climate policy.

Keywords: dr. tim ball, [michael mann](https://search.noagendashow.net/topic/michael-mann.md), [medieval warm period](https://search.noagendashow.net/topic/medieval-warm-period.md), tree rings, [climate data](https://search.noagendashow.net/topic/climate-data.md), [ipcc](https://search.noagendashow.net/topic/ipcc.md)

### Medieval Warm Period, Climate Science Testimony

- **Episode:** [1020: Undercount of Color](https://search.noagendashow.net/episode/1020-undercount-of-color.md)
- **Published:** 2018-03-29
- **Time:** 2:46:16–2:51:17
- **Transcript:** https://search.noagendashow.net/episode/1020-undercount-of-color/chapter/medieval-warm-period-climate-science-testimony.md

A 2006 congressional testimony from a geophysicist challenges the "hockey stick" temperature graph, arguing that the Medieval Warm Period was a real, global phenomenon that modern climate scientists have tried to erase. The witness describes being pressured by NPR to attribute warming to human activity and warns of an "irrational hysteria" in the media regarding natural climate cycles.

Keywords: [climate change](https://search.noagendashow.net/topic/climate-change.md), [medieval warm period](https://search.noagendashow.net/topic/medieval-warm-period.md), [hockey stick graph](https://search.noagendashow.net/topic/hockey-stick-graph.md), [michael mann](https://search.noagendashow.net/topic/michael-mann.md), [geophysics](https://search.noagendashow.net/topic/geophysics.md)

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