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michael_nielsen's profile
michael_nielsen
michael_nielsen
michael_nielsen
@michael_nielsen

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michael_nielsen

@michael_nielsen

Searching for the numinous. Co-purveyor of https://quantum.country/ 

San Francisco, CA
michaelnielsen.org
Joined July 2008

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    1. michael_nielsen‏ @michael_nielsen 16h16 hours ago
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      I'm not wild about gotcha journalism. But geez I'd love to ask some of the people writing about climate some basic questions. What are total CO2 emissions per year? What percentage is due to the US? To China? To coal? To power generation?

      19 replies 14 retweets 181 likes
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    2. michael_nielsen‏ @michael_nielsen 16h16 hours ago
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      How does the impact of methane compare to CO2? How long does CO2 last in the atmosphere (& how do we know)? Etc. When reading I often have the sneaking suspicion that the person writing has no quantitative understanding at all of climate.

      6 replies 5 retweets 86 likes
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    3. michael_nielsen‏ @michael_nielsen 15h15 hours ago
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      Good intentions + no detailed quantitative understanding is simply a recipe for bad outcomes, in my opinion.

      10 replies 9 retweets 136 likes
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    4. michael_nielsen‏ @michael_nielsen 13h13 hours ago
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      It's tempting to say "well, people aren't interested in wonkish, number-and-model laden writing". Maybe. But I wonder. In sport, people seem to love it.

      1 reply 1 retweet 43 likes
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    5. michael_nielsen‏ @michael_nielsen 13h13 hours ago
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      I'm trying to imagine writing about basketball that eschewed all quantitative accounts of last night's big game. Most general climate writing seems a bit like discussing how good or bad LeBron looked on court last night, while ignoring points, rebounds, assists etc.

      2 replies 7 retweets 52 likes
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      michael_nielsen‏ @michael_nielsen 13h13 hours ago
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      Funny thing is: of course, there's a tonne of great books, online classes etc that are full of this stuff. I've found the IPCC report(s) surprisingly readable and interesting. But it all seems sub rosa from the pov of popular culture.

      3:23 PM - 10 Nov 2019
      • 21 Likes
      • Eigil Rischel hardy Ljubomir Josifovski Girish Gupta Sriram Krishnan Markus Pössel Joshua Grochow peter nordberg Stephan Livera
      4 replies 0 retweets 21 likes
        1. New conversation
        2. Lawrence Kesteloot‏ @lkesteloot 11h11 hours ago
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          Replying to @michael_nielsen

          I wonder if the numbers don't seem scary enough. A 3 °C rise in temperature sounds pretty good to many people!

          1 reply 0 retweets 0 likes
        3. michael_nielsen‏ @michael_nielsen 11h11 hours ago
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          Replying to @lkesteloot

          Funny: the numbers are typically a worldwide average, AFAIK. Nearly all of the expected temp increase is over land, not ocean. So the land increase is 2x-3x what's reported. Eg 3 degrees may mean closer to 10 degrees. And much more at high latitudes.

          0 replies 0 retweets 0 likes
        4. End of conversation
        1. Rich McRoberts‏ @mcrobr 8h8 hours ago
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          Replying to @michael_nielsen

          It’s all so complicated. All the stuff you just talked about is only an input into climate change models which are equally (?) complex themselves and it’s not like the other inputs are any easier.

          0 replies 0 retweets 0 likes
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        1. Gareth Smith‏ @goshengareth 1h1 hour ago
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          Replying to @michael_nielsen

          I'd be interested in a reading list!

          0 replies 0 retweets 0 likes
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