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<blockquote data-quote="JTL" data-source="post: 2221833" data-attributes="member: 49289"><p>As someone who I presume has studied physics can you explain to me why the Grapes were easy .... easy to grow as far north as Lincoln in the medieval warm period when CO2 levels were around 250 ppm and why in the Roman warm period grapes were growing in abundance along Hadrian's wall when the CO2 levels were even less?</p><p>There is no definitive answer on Google.</p></blockquote><p></p>
[QUOTE="JTL, post: 2221833, member: 49289"] As someone who I presume has studied physics can you explain to me why the Grapes were easy .... easy to grow as far north as Lincoln in the medieval warm period when CO2 levels were around 250 ppm and why in the Roman warm period grapes were growing in abundance along Hadrian's wall when the CO2 levels were even less? There is no definitive answer on Google. [/QUOTE]
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