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Reposted by Graeme MacGilchrist

Scientific American @sciam.bsky.social · 8h

A famous graphic, now updated, compares locomotion in the animal kingdom

The Most Efficient Traveler Isn’t a Bird or a Fish—It’s You on a Bike

A famous graphic, now updated, compares locomotion in the animal kingdom

www.scientificamerican.com

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Reposted by Graeme MacGilchrist

Graham Caswell @grahamcaswell.bsky.social · 3d

We killed them all. Every last one of them. And now they will never be again.

They lived their Curlew lives, migrated, cared for their young, and had every right to be here - as much as ourselves. And they did us no harm.

And we killed them all.

International Wader Study Group @waderstudy.bsky.social · 4d

Today IUCN has officially declared the Slender-billed Curlew extinct, marking the first known global extinction of a formerly widespread migratory bird species whose range included mainland Europe, North Africa, and West Asia.

Read more here ⬇️
www.unep-aewa.org/fr/node/6632

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Reposted by Graeme MacGilchrist

Simon Lee @simonleewx.com · 9d

This is absolutely staggering.

Zack Labe @zacklabe.com · 10d

Record warm ocean temperatures continued in September across the North Pacific Ocean, with a number of consequential impacts (including on downstream weather patterns).

This graph shows the average for a band across the midlatitudes for every September from 1854-2025 using @noaa.gov ERSSTv5 data.

Green line graph time series of average sea surface temperature anomalies for each September from 1850 through 2025 for only the midlatitude region of the North Pacific Ocean. There is large interannual variability, but an overall long-term increasing trend. Anomalies are computed relative to a 1981-2010 baseline. 2025 is a record high.

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Graeme MacGilchrist @gmacgilchrist.bsky.social · 17d

Had the same response to the Rumi quote!

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Graeme MacGilchrist @gmacgilchrist.bsky.social · 17d

Presumably there was a time when many more of our 2nd order relationships existed through our shared commitments (to religion, community, leisure)?

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Graeme MacGilchrist @gmacgilchrist.bsky.social · 17d

It’s an interesting side note that so many of our second order relationships are about consumption. Our modern lives are steeped in transactions — perhaps then it’s not surprising that, unexamined, these relationships are seen as nothing more than transactional.

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Reposted by Graeme MacGilchrist

George Monbiot @georgemonbiot.bsky.social · 18d

4. We pay again and again for a failure to raise taxes. It’s a false economy, for which we suffer in multiple ways.
Fair Taxation Saves Us Money.

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Graeme MacGilchrist @gmacgilchrist.bsky.social · 18d

It just seems like, if we really wanted to, we could have solved mass poverty by now.

Graeme MacGilchrist @gmacgilchrist.bsky.social · 26d

This, from John, is fantastic.

I never really caught that first wave of the internet, but I certainly lament the whirlpool it has become.

John Kennedy @micefearboggis.bsky.social · 27d

When the web that we weave is complete

diagrammonkey.wordpress.com/2025/09/17/w...

When the web that we weave is complete

I miss the weird mess that the internet was. I miss the endless interlinking of loosely gathered thoughts: daydreaming that started in the head and then spilled out across the whole world, silvered…

diagrammonkey.wordpress.com

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Reposted by Graeme MacGilchrist

Nature Communications @natcomms.nature.com · 26d

Shankle et al. show how a better- #Ventilated #NorthPacific could have reduced the #ocean-carbon upwelled in the #SouthernOcean, reducing outgassing and revealing a remote influence on #SouthernOcean biogeochemistry in #GlacialTimes. #ice-ages @earthscista.bsky.social
www.nature.com/articles/s41...

Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific - Nature Communications

A better-ventilated North Pacific could have reduced the carbon of water upwelled in the Southern Ocean, reducing outgassing and revealing a remote influence on Southern Ocean biogeochemistry in glaci...

www.nature.com

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Graeme MacGilchrist @gmacgilchrist.bsky.social · 26d

🗣️ Come one, come all!

Read about connections between North Pacific Ocean ventilation and Southern Ocean carbon release 🌊

This is the first publication from Maddie Shankle’s PhD thesis, with more exciting work to follow!

James Rae @mudwaterclimate.bsky.social · 27d

🚨New paper on Southern Ocean CO2🚨
Using a suite of Earth system models, Maddie Shankle et al show that better ventilation of intermediate waters in the North Pacific ends up reducing outgassing of CO2 in the Southern Ocean 🌊🧪⚒️🧵 @earthscista.bsky.social
www.nature.com/articles/s41...

Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific - Nature Communications

A better-ventilated North Pacific could have reduced the carbon of water upwelled in the Southern Ocean, reducing outgassing and revealing a remote influence on Southern Ocean biogeochemistry in glaci...

www.nature.com

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Reposted by Graeme MacGilchrist

Abigail Swann, PhD @ecoclimatelab.bsky.social · 29d

Maybe the land carbon sink is weaker than we thought. Big implications: "A lower-than-expected land carbon sink would also imply that the land biosphere may be closer to transitioning from a net carbon sink to a net source than current models predict" Randerson et al. www.science.org/doi/10.1126/...

The weak land carbon sink hypothesis

Satellite-derived time series of vegetation carbon do not support a strong Northern Hemisphere net land carbon sink.

www.science.org

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Reposted by Graeme MacGilchrist

St Andrews Earth & Environmental Sciences @earthscista.bsky.social · 29d

Last week, our 4th year Environmental Earth Science students were at Loch Etive, getting hands-on experience collecting data for investigating water column profiles & overturning events. Led by Drs James Barnet & @gmacgilchrist.bsky.social & supported back in the lab by @oceanicandrea.bsky.social.

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Reposted by Graeme MacGilchrist

St Andrews Earth & Environmental Sciences @earthscista.bsky.social · Sep 12

Meet the motley crew of the School of Earth and Environmental Sciences – ready to kick off the new academic year! 🌍👋

Special mention to our Head of School, Prof. Rob Wilson, who is cleverly disguised a a responsible adult (the T-shirt says it all) 😅🤦‍♂

www.st-andrews.ac.uk/earth-scienc...

Members of SEES on the front steps of Bute, dazzled by the bright Scottish sun. Unless you were smart enough to wear sunglasses like Paul and Bob.

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Reposted by Graeme MacGilchrist

Graeme MacGilchrist @gmacgilchrist.bsky.social · Aug 21

Moral incoherence is the zeitgeist of our age.

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Reposted by Graeme MacGilchrist

Ben Sanderson @benmsanderson.bsky.social · Sep 8

Our finalised paper on flat10MIP is finally up in GMD! This is the experimental protocol which allows for a simple, emissions-driven evaluation of TCRE, ZEC and climate reversibility in CMIP7. Thanks so much to all who ran these simulations as a proof of concept! gmd.copernicus.org/articles/18/...

flat10MIP: an emissions-driven experiment to diagnose the climate response to positive, zero and negative CO2 emissions

Abstract. The proportionality between global mean temperature and cumulative emissions of CO2 predicted in Earth system models (ESMs) is the foundation of carbon budgeting frameworks. Deviations from ...

gmd.copernicus.org

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Reposted by Graeme MacGilchrist

Zack Polanski @zackpolanski.bsky.social · Sep 7

Nigel Farage is the biggest charlatan in British political history.

And here's what his constitutents in Clacton really think:

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Graeme MacGilchrist @gmacgilchrist.bsky.social · Sep 7

There is discussion in AR5 and AR6 about the difficulty in attributing changes in PDV and AMV *themselves* to anthropogenic forcing — ie no evidence that ant. forcing alters the variability. But that’s not what these quotes are discussing in the DOE chapter, which is about attribution of GMST trend.

Graeme MacGilchrist @gmacgilchrist.bsky.social · Sep 7

I’ve not been able to find these quotes (or anything like them) anywhere in the reports, and they skew the IPCC framing considerably.

bsky.app/profile/gmac...

Of course it’s possible that I’ve missed them, but I’ve searched extensively (including for every mention of internal/natural variability).

Graeme MacGilchrist @gmacgilchrist.bsky.social · Aug 17

Made up quotes in the DOE CWG report?

In Ch8, authors claim to quote IPCC AR5 and AR6 summary statements suggesting difficulty attributing climate change due to decadal variability.

I suspected out-of-context, but I can't find the quotes (or anything like them) *at all*.

Anyone know any better?

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Graeme MacGilchrist @gmacgilchrist.bsky.social · Sep 6

There are an abundance of things worthy of debate and discussion in climate science - you have championed many of them - but discussion surely needs to be conducted with agreement on what constitutes honest and rigorous scientific inquiry.

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Graeme MacGilchrist @gmacgilchrist.bsky.social · Sep 6

Disagree at what level? The DOE report fabricated IPCC quotes implying natural variability undermines attribution of anthropogenic (global mean) warming... It waves aside the pattern effect citing just two studies… These are not sources of disagreement, they are simply not serious scholarship.

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Reposted by Graeme MacGilchrist

Mike Byrne @drmichaelbyrne.bsky.social · Sep 5

We had a fantastic research 'away day' at East Sands in St Andrews, where we discussed the future of extreme temperatures as part of GLOBAL-EX project. A lunchtime swim + cheese toasties on the beach was an added bonus! @erc.europa.eu @ukri.org @earthscista.bsky.social @uniofstandrews.bsky.social

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Reposted by Graeme MacGilchrist

Stuart Turnbull-Dugarte @turnbulldugarte.com · Sep 5

Radical right accommodation really does not work.

New paper out with this exceptionally talented team
@katharinalawall.bsky.social @robjohns75.bsky.social @drjennings.bsky.social @sarahobolt.bsky.social @zachdickson.bsky.social @danjdevine.bsky.social & @jack-bailey.co.uk

doi.org/10.31235/osf...

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Graeme MacGilchrist @gmacgilchrist.bsky.social · Sep 4

We *are* planning on having a paleo-oriented workshop here next year, in August, and you’re invited 🫶🏼 Watch this space… (well, maybe not *this* space, but check your inbox!)

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Graeme MacGilchrist @gmacgilchrist.bsky.social · Sep 4

Not next year 🤦🏼‍♂️ 2028!

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