Rosie A. Fisher | Lightnews

Rosie Fisher

@rosieafisher.bsky.social

1.7K followers 890 following 390 posts

Land surface modeller, because the land is where most of the fun things happen. @CICERO, Oslo. Co-chair of the Community Land Model. Open science enthusiast. Humanist. Partly functioning ears & eyes. Talks lots to compensate... 🇬🇧🇺🇸🇫🇷🇧🇻 .. more

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Rosie Fisher @rosieafisher.bsky.social · Nov 10

I made a list (or 'starter pack') of Land Surface Modelers, because that's the kind of thing one does on #bluesky. Please tell your friends and also (v. important) TELL ME if you want to be added. We need more people here! go.bsky.app/Mw4tJ3t

Rosie Fisher @rosieafisher.bsky.social · 4d

*cheatED* :/

Rosie Fisher @rosieafisher.bsky.social · 4d

@ecoclimatelab.bsky.social
we cheating by starting with yours and
@czarakas.bsky.social
results ;) That 'd_max' parameter is an amusingly big lever...

Rosie Fisher @rosieafisher.bsky.social · 4d

This kind of thing normally takes months/years to execute in its entirity. Nothing like the pressure of CMIP deadline to focus the mind(s).

Rosie Fisher @rosieafisher.bsky.social · 4d

hats-off to the small-but-mighty NorESM team, who have conceived of, planned, constructed, submitted and analyzed a multi-stage coupled PPE ("perturbed physics ensemble") -including every model component- in about two weeks flat. Some A-grade technical prowess/collaborative skillz going on over here

Rosie Fisher @rosieafisher.bsky.social · 4d

I think it's quite land-centric, tbf (given it's me and Kjetil he's talking to ;) )

Rosie Fisher @rosieafisher.bsky.social · 4d

I learned last week that one of my great great grandparents and their forebears were from Shap. This made me enormously pleased.

Rosie Fisher @rosieafisher.bsky.social · 5d

I don't do anything, tbf. There's pretty much nothing in my research output on 1.5C...

Rosie Fisher @rosieafisher.bsky.social · 5d

Sorry, but your logic is not very clear. How will delaying net zero targets make any difference to what Russia does? Are those things strongly coupled? Why?
And whose national interest are you assuming I am batting for here??

Rosie Fisher @rosieafisher.bsky.social · 5d

So you are in the "do nothing now because it's hard, and leave it to our kids to sort out all the mess" camp? Just to be clear... (mass extinctions and coral death and fires and droughts and crop failures and heatwaves notwithstanding? )

Rosie Fisher @rosieafisher.bsky.social · 5d

1.5C is what we think we need to avoid "dangerous" climate outcomes in the natural climate system. Which does not care about your S-curve and your national security and your computer chips. llustrating how far away we are from that seems perfectly reasonable to me.

Rosie Fisher @rosieafisher.bsky.social · 5d

I am not sure why national security in the Baltics nor having chips from Taiwan is at all incompatible with ambitious climate targets? Climate change causes its own threats to national security, and the solution on the table generates rather than erodes energy independence. Ideology works both ways.

Rosie Fisher @rosieafisher.bsky.social · 5d

Many thanks to @eilifursinreed.bsky.social for translating this nice piece he wrote on the ESM development prcess... :)

CICERO Center for International Climate Research @cicero.oslo.no · 5d

"He's an expert on oceans, she's an expert on land processes, those two specialize in the atmosphere," Aas explains.
Each week, they gather digitally to discuss the globe—or more precisely, a representation of it. Together, they're developing a climate model.

Rosie Fisher @rosieafisher.bsky.social · 5d

I am not quite sure why you are so worked up over this plot. We aren't on track for 1.5C and this plot make that very clear...

Rosie Fisher @rosieafisher.bsky.social · 5d

What, I personally should drop it? Sorry, but I don't think that would have all that great of an impact... But maybe try explaining your position to all the countries who will be underwater >1.5C and see how 'normal' they think your perspective is...

Reposted by Rosie A. Fisher

CICERO Center for International Climate Research @cicero.oslo.no · 5d

Rosie Fisher @rosieafisher.bsky.social · 5d

It is not 'suddenly' the benchmark. 1.5C is the basis of the Paris agreement and so scenarios that meet them have been the benchmark for the last 10 years.

Rosie Fisher @rosieafisher.bsky.social · 6d

thank you for all your stile-related content. I didn't know I needed this, but as a now 16 year expat Northerner, I really do...

Rosie Fisher @rosieafisher.bsky.social · 6d

and also, by way of illustration, of the 25-30 awesome and hardworking people who are involved in finalizing NorESM right now, probably only about 2-3 of them are on any social media at all...

Reposted by Rosie A. Fisher

Natasha MacBean @nmacbean.bsky.social · 6d

Collatz, Berry, Clark, Sellers and colleagues practicing open data policies since the mid 90s :-)

Rosie Fisher @rosieafisher.bsky.social · 6d

...or analysing the output of models that other people made 20 years ago ;)
I guess this is kindof my point. No-one doing this has time to talk about how hard it is. So the sheer amount of work and thought and creative problem solving and focus and perseverance involved goes rather under the radar.

Reposted by Rosie A. Fisher

Liam Langan @myplantsdance.bsky.social · 6d

Same for veg models in my limited experience.

And, at interview, when you’re asked where all your first author papers are and you say, eh but…veg model (see code), it doesn’t count.

It doesn’t count like it should to do really hard things. I should have stuck to stats.

Sorry, mini rant over 🙈

Rosie Fisher @rosieafisher.bsky.social · 6d

...noting that this is not for want of excellent people or systems. It's just fundamentally really difficult...

Reposted by Ben Bond‐Lamberty

Rosie Fisher @rosieafisher.bsky.social · 6d

Making a climate model that works well is really, really hard. So hard, in fact, that the people who do make it happen rarely have the time or energy to talk about how hard it is on the internet. So most other people have very little understanding about how hard it is... But boy is it hard #NorESM3

Reposted by Rosie A. Fisher

Glen Peters @glenpeters.bsky.social · 6d

Global CO2 emissions are showing signs of levelling, thanks to a slight decline in net land-use change emissions offsetting continued growth in fossil emissions.

The trends are way off compared to the 1.5C scenarios with no or low overshoot assessed in the IPCC.

Details: bsky.app/profile/glen...

Reposted by Rosie A. Fisher, Elizabeth Stokoe

Prof Christina Pagel @chrischirp.bsky.social · 7d

Hey Labour

Remember the majority of voters who believe in treating people decently and not stealing from those who've endured months and years of hardship fleeing war and persecution to seek a place of safety?

We're still over here 👋

Reposted by Rosie A. Fisher, Tuomas Mattila

Robbie Andrew @robbieandrew.bsky.social · 11d

Global Carbon Budget 2025, released today.

Pep Canadell @pepcanadell.bsky.social · 12d

1/2

To support this year's Global Carbon Budget, 2025, we are publishing

The big paper, made possible by the strong commitment of a core group of scientists, with @pfriedling.bsky.social at the lead, working with a network of equally committed contributors from 102 research organizations worldwide