Ramez NaamOvjeren akaunt

@ramez

Books: Nexus Series / The Infinite Resource. Faculty . Energy, climate, & innovation wonk. Optimist.

Seattle
Vrijeme pridruživanja: svibanj 2007.

Medijski sadržaj

  1. 3. velj
    Odgovor korisnicima i sljedećem broju korisnika:

    1) Yes, a learning rate. Every doubling of RE, storage, & EVs drives ~same % cost decline. 2) RE & EVs still v. small. Several doublings left. 3) Decline of fossil fuels won't be a consistent %/year. Closer to a linear decline, meaning highest % at first. See US coal decline.

  2. 11. sij
    Odgovor korisnicima

    The primary (tho not only) reason I think we're seeing solar growing again in the EU (especially Spain) is that solar there, at <3/kwh, is below the marginal cost of both gas and coal (especially after the EU ETS)

  3. 11. sij
    Odgovor korisnicima

    Amen, Dr G! : Read this post about why most coal worldwide will be losing money within 10 years : Or watch this slightly more in-depth talk that touched oil too I'm happy to talk to your team and to field questions!

  4. 10. sij
    Odgovor korisniku/ci

    That's global. In the US, the proportion of ghg's that come from natural gas heating of buildings is 12%, and the electricity consumption percentage is only a bit higher than the global average.

  5. 10. sij
    Odgovor korisniku/ci

    That one is by . See also the work of . Also see this similar critique of IEA and other EV projections, by

  6. 10. sij
    Odgovor korisniku/ci
  7. 9. sij

    Here is such a visualization.

  8. 9. sij
    Odgovor korisnicima

    Primarily national finance agencies and nationally-funded banks in China, Japan, and Korea. From 's article :

  9. 8. sij

    (You can also see an example of a similar, tho shorter, talk on this topic here: ) 4/n

    Prikaži ovu nit
  10. 7. sij
    Odgovor korisnicima

    As a first order approximation, I'd call it 1/2 combustion of fuels on site (mostly for direct heat) and 1/2 process emissions related to chemical changes being made. (E.g, iron ore to steel). See the green sections.

  11. 7. sij
    Odgovor korisniku/ci

    Sure. But despite that, UK carbon emissions are down by almost half since 1990. Down to levels last seen in ~1890.

  12. 6. sij
    Prikaži ovu nit
  13. 13. pro 2019.
    Odgovor korisniku/ci

    I think that's missing important context, like the subhead of the entire piece. He's not arguing for no action. He's arguing that we should drive clean solutions by making them obviously in the narrow self interest of every nation.

  14. 11. pro 2019.
    Odgovor korisnicima

    Huh. This is very different from IPCC's view, which shows deforestation as 2x as big as enteric fermentation.

  15. 11. pro 2019.
    Odgovor korisniku/ci
  16. 11. pro 2019.
    Odgovor korisnicima

    Nope. Cows are much worse than small ruminants like sheep or goats.

  17. 6. pro 2019.
    Odgovor korisnicima i sljedećem broju korisnika:

    I realize that warming is proportional to log of greenhouse gas concentrations. The Constrain study states that a linear model is fairly accurate within a certain range.

  18. 29. stu 2019.

    Here's the US acreage burned by year. (This extends to 2018, despite the chart title.) So many variables in this. From:

    Prikaži ovu nit
  19. 29. stu 2019.

    I keep coming back to this data, and keep being surprised. California fires have burnt far fewer acres this year than in 2018, and well-below the 5 year average. From:

    Prikaži ovu nit
  20. 26. stu 2019.
    Odgovor korisnicima

    I'm not sure anyone did. Everyone missed fracking and cheap gas. That said, forecasters like and have been much closer to right on RE, so I think looking at their forecasts on coal vs IEA STEPS.

Čini se da učitavanje traje već neko vrijeme.

Twitter je možda preopterećen ili ima kratkotrajnih poteškoća u radu. Pokušajte ponovno ili potražite dodatne informacije u odjeljku Status Twittera.

    Možda bi vam se svidjelo i ovo:

    ·