Pt 5 is just the 'climate has changed before' trope. Duh. Of course it has & for many different reasons: Asteroids, plate tectonics… 14/n
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Replying to @ClimateOfGavin
…orbital wobbles, evolution, volcanoes, the sun, fires, ocean circulation, etc. But just like a crime scene w/multiple suspects… 15/n
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Replying to @ClimateOfGavin
Scientists look for fingerprints in the data to match up potential causes w/reality. We know that orbital wobbles drove last 2.5 Myr… 16/n
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Replying to @ClimateOfGavin
of ice age cycles & that greenhouse gas+dust changes amplified them. We have good evidence Cenozoic cooling was due to decreases in CO2…17/npic.twitter.com/4CoV133af3
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Replying to @ClimateOfGavin
combined w/tectonic triggers that changed circulation, isolated Antarctica & set the stage for recent glacial periods. 18/n
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Replying to @ClimateOfGavin
All these past changes are fascinating & piecing together the evidence is fun but in no cases do we have as much info as for the 20thC 19/n
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Replying to @ClimateOfGavin
A claim that attribution of recent change is compromised because attribution from some earlier, data-poorer period is unclear is equivalent…
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Replying to @ClimateOfGavin
…to claiming that a recent murder conviction should be vacated because an ancient Roman skull has just been found in Europe. 21/n
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Replying to @ClimateOfGavin
(bear with me people, we are almost done). 22/n
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Replying to @ClimateOfGavin
Pt. 7: the earth has warmed as predicted you pillock. 23/npic.twitter.com/2q0TWqhgLV
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Insufficient context, of course. (Same problem every time.)
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Replying to @ScottAdamsSays @ClimateOfGavin
What context do you want?! Deniers saying temp isn't rising? It is. Or saying CO2 isn't a GHG? It is...
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