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Temperature

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Why Egypt's Pyramids Are Crumbling - Rebecca Rosen, The Atlantic

When structural engineer Peter James arrived at the Bent Pyramid, 25 miles southeast of Cairo, his task was to secure the structure's remaining "cladding" -- its smooth exterior envelope....

The Last Time CO2 Was This High... - Andrew Freedman, Climate Central

The last time there was this much carbon dioxide (CO2) in the Earth's atmosphere, modern humans didn't exist. Megatoothed sharks prowled the oceans, the world's seas were up to 100 feet...

Let's Think Cosmically About Global Warming - Nancy Abrams, Big Think

How can you think cosmically about global warming?  The first thing to do is appreciate how the Earth works, and that the Earth has been through many cycles of being hot and cold....

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