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  • Users: GregLocock
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  1. GregLocock

    Clouds and models

    Sometimes I might feel a bit sorry for the climate modellers. This paper shows that clouds help heat the world https://pmc.ncbi.nlm.nih.gov/articles/PMC8325336/ This paper shows that absence of clouds help heat the world https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL114882 The...
  2. GregLocock

    AI generated list of negative feedbacks in the real world

    None of these are accounted for in the models h/t Willie Eschenbach who painstakingly walked an AI through the options. This list may not be accurate but does at least need to be evaluated if modellers are pursuing Gold Standard Science. I've only included the names, the entire article is too...
  3. GregLocock

    JetZero Blended wing proposal

    From Aviation leak https://aviationweek.com/aerospace/aircraft-propulsion/jetzero-takes-wraps-blended-wing-body-development-plans A little more than two years after JetZero revealed ambitious plans to challenge the Airbus-Boeing air transport duopoly by developing a blended wing body (BWB)...
  4. GregLocock

    LandRover Death wobble

    I am told that live front axle LRs of a certain vintage may suffer from the death wobble popularised by Jeep. Rumor has it that on the Landys this is due to to worn bearings/shafts in the steering box and that reshimming may fix it. Has anyone worked on this?
  5. GregLocock

    Dark roof lobby

    Bizarro world story - there is a dark roof lobby that attempts (sometimes successfully) to prevent light roof mandates. The point of the latter is to reduce energy consumption in daylight. But then somebody comes up with this https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024GL112433...
  6. GregLocock

    Restoring Gold Standard Science

    TACO has introduced an EO whose aim is “restoring gold standard science”. It means it must be reproducible; transparent; open about error and uncertainty; collaborative and interdisciplinary; sceptical of its findings and assumptions; falsifiable; subject to unbiased peer-review; (as) accepting...
  7. GregLocock

    Carbon capture con job

    https://heimildin.is/grein/24581/ They need 5000 kWh of electricity to capture 1 tonne of CO2. They are #2 on Time's list of green companies.
  8. GregLocock

    Paths to 100% renewable power, globally

    It's cheap and easy apparently https://yle.fi/a/3-10736252 . No mention of the costs of storage or transmission lines. You can do it in Kazaqkstan Transition towards a 100% RE-based energy system was modelled for five scenarios considering different energy system structures, from a limited...
  9. GregLocock

    Net zero could make flying “something for the privileged”, the boss of Qantas has warned.

    Net zero could make flying “something for the privileged”, the boss of Qantas has warned. Vanessa Hudson, the chief executive of the Australian flag carrier, said the higher costs associated with clean fuel were likely to push up air fares and could put them out of reach of the masses. Her...
  10. GregLocock

    Economics of green hydrogen

    Some real numbers “A key drawback of the existing green hydrogen production process is that a considerable portion of the renewable energy used to produce the hydrogen is lost in the production process,” EnergyQuest said. “It takes around 45 kilowatt hours to produce one kilogram of green...
  11. GregLocock

    France's plan

    Amazingly one government gets it. France has kicked off planning for a +4 deg C world in 2100. Reasons for this are (among others) China talks, and does, a big game about renewable energy, but is frantically building coal-fired power stations. Last year it added 100GW of coal capacity, five...
  12. GregLocock

    Australian Grid resilience

    https://www.abc.net.au/news/2025-03-10/no-quick-fix-to-qld-nsw-power-outages-as-grid-weakness-laid-bare/105031536 They are suggesting community hub battery sub stations. The one in the photo will keep 4000 houses going for 1 hour. Typical outages are 5 days long. So in reality 33 houses.
  13. GregLocock

    AI designs an electric grid for Australia's NEM

    Designing a power generation system that delivers an average of 24 gigawatts (GW) while accommodating the intermittency of renewables and aligning with typical daily demand curves requires a strategic mix of energy sources. Below is a proposed energy mix, along with associated costs and...
  14. GregLocock

    New solid state EV battery

    Solid state battery for EVs https://insideevs.com/news/751481/mercedes-benz-eqs-solid-state-battery/ Less flammable, better energy density. Sounds good. I'd point out that EVs are a very expensive way to remove one kg of CO2 from anthropogenic emissions, but this'll help
  15. GregLocock

    New integrated AI/Python browser based app - Dystr

    https://dystr.com/docs/tutorials/execute-track-math So this basically integrates AI with a Python code generator. The work stream is much like the way I use ChatGPT to write Matlab code, but neater. It is just as stupid as ChatGPT, it writes neat code that initially gives the wrong answer...
  16. GregLocock

    Things are getting better part 2

    Estimates of crop yields in USA out to 5 deg C of warming. https://www.nature.com/articles/s41598-025-90254-2
  17. GregLocock

    Titan sub - audio released

    https://www.dvidshub.net/video/951839/titan-submersible-coast-guard-marine-board-investigation-releases-audio-recording I haven't found a decent quality sound file of this, but they have at least run a spectrogram, showing alot of activity 0-100 Hz and around 230 Hz, the latter having a...
  18. GregLocock

    Renewable overbuild and storage requirements for various countries

    Bit of a tricky set of charts to understand. Basically they look at various amounts of overbuild, and then 0 3 or 12h of storage. https://pmc.ncbi.nlm.nih.gov/articles/PMC8536784/pdf/41467_2021_Article_26355.pdf For example, if you have 3h of storage for Australia, and build 100% of nominal...
  19. GregLocock

    The wheels are falling off the Net Zero Bandwagon 2025 edition

    Rather a good summary from Dr Sabine. She is a true believer in climate change, but seems rather more astute than your average doom and gloomer. She seems to think that a certain president implementing what his voters want to happen is somehow poor behavior. Here'a funny video when she looks...
  20. GregLocock

    Famous eng-tips member interviewed about hydrogen on the ABC

    Good realistic look at why hydrogen electrolysis projects are struggling worldwide. Since it was on the ABC I was expecting the usual boosterism. Nah, basic line was you can't subsidise bad physics to success...

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