Xennial Memes
Circular chart of concentric rings, blue and red, titled "Northern Hemisphere Summer Temperatures (750 to 2020)". Center is year 750, outer edge 2020. A white bar labels "750", "Medieval Period", "Little Ice Age", "2020". Outer rings turn deep red. Caption: "data: Anchukaitis et al. 2017 (reconstruction), HadCRUT4 (observations)".

Tree Rings of Rising Summer Temperatures

A tree-ring-style chart shows 1,270 years of Northern Hemisphere summer temperatures, with the recent rings glowing deep red. Science class, but the homework is the planet.

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Circular chart of concentric rings, blue and red, titled "Northern Hemisphere Summer Temperatures (750 to 2020)". Center is year 750, outer edge 2020. A white bar labels "750", "Medieval Period", "Little Ice Age", "2020". Outer rings turn deep red. Caption: "data: Anchukaitis et al. 2017 (reconstruction), HadCRUT4 (observations)".

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