Thread by @ncdave4life

@fischerfischy @Anvndarnamn5 @gstrandberg1 @Climatehope2 @AristotleMrs @Climate_Takes @S_D_Mannix @DenisDaly @Ceist8 @ItsTheAtmospher @Rocky35418823 @ShroedingerBird @Michael_D_Crow @SniemN @CDMarshall7 @Data79504085 @Veritatem2021 @glinch72 @EthonRaptor @ChrisBBacon3 @Jaisans @Hji45519156 @ammocrypta @RMcgillss @paligap17 @JustThi30117912 @BointonGiles @TheDisproof @MaggieL @Willy1000 @Mark_A_Lunn @AuroriaTwittori @3GHtweets @RushhourP @MartinJBern @Willard1951 @Jakegsm @EricWil06256732 @DTGvmd @wille99 @PaulDFarrar @KCTaz @Valja46Zhark5 @paulp1232 @J0aquIm_B4rb0s4 @Sky48115666 @0Sundance Windbagger wrote, "List the NATURAL phenomena realistically capable of producing a steady GLOBAL warming of one degree C in roughly 70 years"

Greenland ice cores record 25 Dansgaard–Oeschger events with warming as rapid as several degrees per decade.
sealevel.info/learnmore.html…

@fischerfischy @Anvndarnamn5 @gstrandberg1 @Climatehope2 @AristotleMrs @Climate_Takes @S_D_Mannix @DenisDaly @Ceist8 @ItsTheAtmospher @Rocky35418823 @ShroedingerBird @Michael_D_Crow @SniemN @CDMarshall7 @Data79504085 @Veritatem2021 @glinch72 @EthonRaptor @ChrisBBacon3 @Jaisans @Hji45519156 @ammocrypta @RMcgillss @paligap17 @JustThi30117912 @BointonGiles @TheDisproof @MaggieL @Willy1000 @Mark_A_Lunn @AuroriaTwittori @3GHtweets @RushhourP @MartinJBern @Willard1951 @Jakegsm @EricWil06256732 @DTGvmd @wille99 @PaulDFarrar @KCTaz @Valja46Zhark5 @paulp1232 @J0aquIm_B4rb0s4 @Sky48115666 @0Sundance "Arctic amplification" (and the more gradual warming recorded in Antarctic ice cores) mean globally averaged warming during Dansgaard–Oeschger events was probably only about 1/4 to 1/3 as fast as the warming in Greenland.

It was still much greater & faster than recent warming.

@fischerfischy @Anvndarnamn5 @gstrandberg1 @Climatehope2 @AristotleMrs @Climate_Takes @S_D_Mannix @DenisDaly @Ceist8 @ItsTheAtmospher @Rocky35418823 @ShroedingerBird @Michael_D_Crow @SniemN @CDMarshall7 @Data79504085 @Veritatem2021 @glinch72 @EthonRaptor @ChrisBBacon3 @Jaisans @Hji45519156 @ammocrypta @RMcgillss @paligap17 @JustThi30117912 @BointonGiles @TheDisproof @MaggieL @Willy1000 @Mark_A_Lunn @AuroriaTwittori @3GHtweets @RushhourP @MartinJBern @Willard1951 @Jakegsm @EricWil06256732 @DTGvmd @wille99 @PaulDFarrar @KCTaz @Valja46Zhark5 @paulp1232 @J0aquIm_B4rb0s4 @Sky48115666 @0Sundance Those much larger and more rapid (but 100% natural) temperature changes are known to have been globally synchronous, though much less abrupt in the southern hemisphere. They typically persisted for hundreds or thousands of years — and nobody is certain why they happened.

@fischerfischy @Anvndarnamn5 @gstrandberg1 @Climatehope2 @AristotleMrs @Climate_Takes @S_D_Mannix @DenisDaly @Ceist8 @ItsTheAtmospher @Rocky35418823 @ShroedingerBird @Michael_D_Crow @SniemN @CDMarshall7 @Data79504085 @Veritatem2021 @glinch72 @EthonRaptor @ChrisBBacon3 @Jaisans @Hji45519156 @ammocrypta @RMcgillss @paligap17 @JustThi30117912 @BointonGiles @TheDisproof @MaggieL @Willy1000 @Mark_A_Lunn @AuroriaTwittori @3GHtweets @RushhourP @MartinJBern @Willard1951 @Jakegsm @EricWil06256732 @DTGvmd @wille99 @PaulDFarrar @KCTaz @Valja46Zhark5 @paulp1232 @J0aquIm_B4rb0s4 @Sky48115666 @0Sundance Those large, abrupt temperature changes apparently didn't cause mass extinctions. Humans, polar bears, pikas, coral, and nearly every other existing species all survived those sharp changes. So we needn't fear that the current slight warming trend could be catastrophic for them.

@fischerfischy @Anvndarnamn5 @gstrandberg1 @Climatehope2 @AristotleMrs @Climate_Takes @S_D_Mannix @DenisDaly @Ceist8 @ItsTheAtmospher @Rocky35418823 @ShroedingerBird @Michael_D_Crow @SniemN @CDMarshall7 @Data79504085 @Veritatem2021 @glinch72 @EthonRaptor @ChrisBBacon3 @Jaisans @Hji45519156 @ammocrypta @RMcgillss @paligap17 @JustThi30117912 @BointonGiles @TheDisproof @MaggieL @Willy1000 @Mark_A_Lunn @AuroriaTwittori @3GHtweets @RushhourP @MartinJBern @Willard1951 @Jakegsm @EricWil06256732 @DTGvmd @wille99 @PaulDFarrar @KCTaz @Valja46Zhark5 @paulp1232 @J0aquIm_B4rb0s4 @Sky48115666 @0Sundance Despite the sharp rise in CO2 concentrations, there's nothing particularly unusual about the rate of the current slight warming trend, when viewed in a historical context.

sealevel.info/1895-1946_1957…

@fischerfischy @Anvndarnamn5 @gstrandberg1 @Climatehope2 @AristotleMrs @Climate_Takes @S_D_Mannix @DenisDaly @Ceist8 @ItsTheAtmospher @Rocky35418823 @ShroedingerBird @Michael_D_Crow @SniemN @CDMarshall7 @Data79504085 @Veritatem2021 @glinch72 @EthonRaptor @ChrisBBacon3 @Jaisans @Hji45519156 @ammocrypta @RMcgillss @paligap17 @JustThi30117912 @BointonGiles @TheDisproof @MaggieL @Willy1000 @Mark_A_Lunn @AuroriaTwittori @3GHtweets @RushhourP @MartinJBern @Willard1951 @Jakegsm @EricWil06256732 @DTGvmd @wille99 @PaulDFarrar @KCTaz @Valja46Zhark5 @paulp1232 @J0aquIm_B4rb0s4 @Sky48115666 @0Sundance Nor are recent temperatures especially warm. The warmest part of the Eemian interglacial is generally estimated to have been several degrees warmer than now.

sealevel.info/learnmore.html…