Matthew Sparkes in New Scientist:
Buying or selling bitcoin uses 16,000 litres of clean water for every single transaction, which could exacerbate existing droughts around the world. While the energy consumption and carbon emissions produced by bitcoin and other cryptocurrencies have been well studied, this is the first assessment of its water use and wider environmental impact.
Alex de Vries at the VU Amsterdam School of Business and Economics in the Netherlands has calculated that mining – the computational process that secures the bitcoin network – uses between 8.6 and 35.1 billion litres of water per year in the US alone. He says that bitcoin used 1.6 trillion litres of water globally in 2021, and expects this to rise to 2.3 trillion litres this year. Broken down per transaction, that means a single bitcoin trade consumes 16,000 litres of water – enough to fill a small swimming pool. This is “increasingly hard to defend”, says de Vries.
More here.

DNA mutations
Nonprofit hospitals have been caught doing some surprising things, given how they are supposed to serve the public good in exchange for being exempt from federal, state and local taxes — exemptions that added up to
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On that gray February morning, the exhibit galleries smelled of perfumed wool and vibrated with a hushed reverence for Picasso’s creatures—two-legged, four-legged, winged, taloned, hooved. A man with a goat, a tiny horse with casters for feet, a girl jumping rope, Picasso’s ever-present Minotaur. And many, many women.
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Elizabeth Bishop delighted in the postcard. It suited her poetic subject matter and her way of life—this poet of travel who was more often on the move than at home, “wherever that may be,” as she put it in her poem “Questions of Travel.” She told James Merrill in a postcard written in 1979 that she seldom wrote “anything of any value at the desk or in the room where I was supposed to be doing it—it’s always in someone else’s house, or in a bar, or standing up in the kitchen in the middle of the night.”
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