Zeke Hausfather

@hausfath

Climate Scientist working on temperature records, climate, and energy system models. Director of Climate and Energy . Also: ,

San Francisco
Vrijeme pridruživanja: srpanj 2008.

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  1. Prikvačeni tweet
    4. pro 2019.

    After a year of work our paper on evaluating performance of historical climate models is finally out! We found that 14 of 17 the climate projections released between 1970 and 2001 effectively matched observations after they were published. 1/19

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  2. proslijedio/la je Tweet
    prije 5 sati

    Three degrees of warming is not a world we want. Sea level will rise so high that some coastal cities & islands will disappear. We will lose corals, Arctic sea ice. The climate extremes we're already seeing will get worse.

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  3. proslijedio/la je Tweet
    prije 14 sati

    Coal-fired electricity generation in New England and New York has... diminished? More like died... 😬

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  4. prije 16 sati

    The and are hiring a postdoctoral researcher focusing on physical climate risk. Its an amazing opportunity to do policy-relevant research and communication and to work with two outstanding organizations:

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  5. proslijedio/la je Tweet
    prije 21 sat

    Completely forgot to Tweet the latest UK GHG emissions stats (1990-2018). Good news, a 43% reduction compared to 1990 and 2% down on last year. Falls in most sectors of the economy, but tough work ahead to keep this trend going

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  6. proslijedio/la je Tweet
    prije 18 sati

    That dystopian hellscape keeping you up at night? It’s less likely than you think via

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  7. proslijedio/la je Tweet
    prije 19 sati

    Excellent illustration of how: a) eating less meat typically reduces GHG emissions, b) shifting from beef to pork, chicken or fish cuts emissions, c) there's huge opportunity to make the highest emitting production systems better Excellent work from , as usual.

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  8. proslijedio/la je Tweet
    prije 23 sata

    Some year to date share price performance for energy companies, courtesy of a leading investor who pointed this out to me (didn’t want to be named). Quite some decline!

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  9. prije 19 sati

    With January 2020 coming in as the warmest on record, there is a real chance that 2020 might give 2016 as run for its money as the overall warmest year on record in the ERA5 dataset, despite expected neutral El Nino conditions:

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  10. prije 19 sati

    January 2020 was the warmest January on record in the ECMWF ERA5 reanalysis dataset, beating out 2016 by a hair. Januaries have warmed by around 0.8C over the past 40 years.

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  11. proslijedio/la je Tweet
    prije 21 sat

    Why is IEA’s fossil CO2 outlook clearly diverging from the high emission scenarios used in climate science and policy? Is it just reduced expectations for coal? We can see some reasons by looking at IEA WEO fossil projections vs. SSP no policy baselines for IPCC AR6 - oil ⬇️ 1/9

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  12. proslijedio/la je Tweet

    Despite the limited computing power available at the time, climate models from the 1970s provided accurate forecasts of global surface warming. Great N&V by

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  13. proslijedio/la je Tweet
    4. velj

    I'm going to go on record right here: I don't believe these very high values of climate sensitivity (> 5 deg C) that some models are getting. If ECS is so large, then we should have seen a lot more warming since the mid-19th century.

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  14. 4. velj

    Excellent piece in Nature this week covering our recent paper on evaluating climate model performance. We found that 14 of 17 climate model projections published between 1970 and 2001 accurately projected future warming:

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  15. proslijedio/la je Tweet
    3. velj

    One of the best things I ever did for my career was join for their unique summer fellowship studying major energy and environmental challenges. The deadline for this year's fellowship is next week - check it out here:

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  16. proslijedio/la je Tweet
    3. velj

    Opportunity for those interested -- you can work at this summer!

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  17. proslijedio/la je Tweet
    4. velj

    We can confirm the final results of the unreleased Iowa Poll: Sanders 22% Warren 18% Buttigieg 16% Biden 13%

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  18. 3. velj

    January global temperatures are now out from JRA-55 (the Japanese reanalysis product). It was the second warmest January on record, just a hair under the record set in 2016.

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  19. proslijedio/la je Tweet
    3. velj

    Hi It's actually not right to say that studies based on prescribed CO2 concentrations don't include carbon cycle (C-C) feedbacks. For CMIP5, C-C feedbacks were implicitly accounted for. 1/3

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  20. 3. velj

    A worst case outcome of 2 meters sea level rise by 2100 is a risk we should certainly consider, but lets not misconstrue it as the most likely outcome.

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  21. 3. velj

    We need to be careful in how we present these sorts of results. An article saying up to 13 million people could be displaced in the worst case (RCP8.5 variant with 2m SLR by 2100) morphs into 13 million people "are expected to" be displaced:

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