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[[circled]] 4 [[/circled]] [[image of scribbled notes]] Look at Temp Record (can also get ancient temps from ice) →see clearly: Temp + CO2 are linked note ⇒ (1) CO2 way higher... expect T to go HIGHER (2) civiliz. only in last 10,000k yrs (people have built civ, economy, coastal cities, based on this climate) (3) diff betw ice age + now ~ 5-6C! [[image]]Recent T[[/image]] Expect warming & we're seeing warming (avg annual over 1000 yrs) Note: not disputed: planet has warmed ~ 1.5F over last 100 yrs BIG DEAL! [Doesn't sound like much, but important => already seeing effects throughout earth system + all over planet • Warmer T • drier => drier; wet => wetter • Stress on H2O resources • Glaciers receding • Sea level ↑ • Impacts on ecosystems & agriculture => Perspective from Space