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The Hottest Ever Summer That Wasn't
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Here Comes The Flood... Of Bogus Claims
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The Claim Is Burning
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There Goes That Tropical Glacier
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Climate Change For The Birdwatchers
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Climate Hump Day
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Top 5 Dubious Climate Change Claims: The Truth Unveiled!
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Hypocritical Climate Pieties
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Climate Shipwreck
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Your Footprint's Too Big
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Canada Goes Dark
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How Weird Is A Cold Winter?
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Sea Level Check - Cape Town
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Turning Down The Heatwaves
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With Tree Rings On Their Fingers
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How Feverish Was My Valley?
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Climate Shipwreck
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Some Data That's Not Cool
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Sea Level Check - Keelung
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Keep Calm and Climate On
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Sea Level Check - Reykjavik
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Aaaah, The End Of Snow Again
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Michael Streisand
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A Parasol For Planet Earth
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When Backroom Met Zealot
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How Weird Is People Using Fuels That Work?
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The Skeptical Environmentalist
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With Tree Rings On Their Fingers

7 months ago
1.1K

There's a lot of apparently confident talk about how current temperatures compare with those in the past, including claims of 2023 being the "hottest year ever" or at least in the last 125,000. But how do we actually know, and how much do we actually know, about historic and prehistoric temperatures? In this Climate Discussion Nexus "Backgrounder" video John Robson examines the uses, and abuses, of various temperature proxies.

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