Tag: youtube
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Carl Sagan on climate change: “we’re doing something immensely stupid”
This is sobering: in an ad for the United Nations Global Compact, the words of Carl Sagan from nearly 40 years ago warn us of the necessity for urgent action on climate change, deforestation, and extinction. Source: Kottke & Colosal.
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Kids stopped walking to school
Via Kottke.
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Animation showing the biggest Black Holes
Via Kottke
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Cancer
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The AI Dilemma
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How solar energy got so cheap
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Why aliens might already be on their way to us
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The Rules for Rulers
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Labeling kids