Climate scientist+geochemist. Professor at William Paterson University. He/him/his. @cavemangriff.bsky.social
Wayne, NJ
Joined August 2011
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We have a new paper out in @PNASNews today utilizing phosphate oxygen and clumped isotopes to infer endothermy in extinct megatooth shark, Otodus megalodon. @SoraLKim @ClumpedIsotopes @RobinTrayler @JM_McCormack @aakhtar12 @wpunj_edu
pnas.org/doi/10.1073/pnas.22…
Michael Griffiths retweeted
New #ScienceCommunication website blog from me. Here, I look at another recent #megalodon study that used zinc isotopes to find that megalodon wasn't just a whale killer (art by Alberto Gennari); but probably ate whatever it wanted!
Give a read here: drjackacooper.com/writing/me… 🦈
Michael Griffiths retweeted
That's just one of many instances of distortion and misinformation in the US Department of Energy "Critical Review on the Impacts of Greenhouse Gas Emissions".
Which in fact is a fossil fuel propaganda scam.
Let's hope Americans are not that easily fooled.
tamino.wordpress.com/2025/08…
Michael Griffiths retweeted
Our piece in @ConversationEDU today:
As US climate data-gathering is gutted, Australian forecasting is now at real risk theconversation.com/as-us-cl…
And it's not just Australia that will lose out. Forecasting all around the world will be set back decades if these cuts go through.
Michael Griffiths retweeted
Out today in Nature, our new paper on the drivers of the extreme summertime heating of the North Atlantic during 2023. Temperatures across much of the basin warmed to record high levels in the space of just a few months. The impacts on climate and ecosystems were severe. A thread on how this work came about and what we found. 👇👇👇🧵 nature.com/articles/s41586-0…
ALT This is not the actual cover of Nature, just shown here for illustrative purposes. We did submit this figure for consideration for their cover. Print run in two weeks, we'll know by then if it gets used.
Check out this important new study by the wonderful @paleopatt out today!
Out today in @NatureComms!
We show that correcting a stalagmite oxygen isotope record for the effects of prior calcite precipitation (PCP) improves agreement with regional records and climate models.
nature.com/articles/s41467-0…
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Michael Griffiths retweeted
Excellent @CarbonBrief article by @VTCoop and @karmour_uw discussing their recent paper finding that new estimates from the last glacial maximum suggest that high climate sensitivity (>4C per doubling CO2) may be less likely than previously thought: carbonbrief.org/guest-post-i…
Michael Griffiths retweeted
Fohlin’s husband, John Latting, is the Emory Dean of Admissions. This is going to be an interesting night in @EmoryUniversity’s top administrative echelons.
It is worth watching this CNN video from the moment Emory Econ Professor @CarolineFohlin came across the violent arrest of a protester on campus and asked the police, with shock, "What are you doing?" That's all that prompted an officer to hurl her to the ground and handcuff her.
Michael Griffiths retweeted
In our new paper, we investigate diet-tissue and tissue-tissue zinc isotope fractionation in gilt-head seabreams and discuss the implications for ecological studies using this new dietary proxy. @Klervia_Jaouen @BourgonNicolas @Theo_Tacail and more.
link.springer.com/article/10…
Michael Griffiths retweeted
Back from an amazing couple of weeks attending a @PEMSEA workshop and conducting fieldwork in the Philippines. Made new friends, established future collaborations, and visited some caves!
Michael Griffiths retweeted
After 10 years in the sciences, my first ever paper just got published I was fortunate enough to be a co-author on (led by the awesome Molly Karnes and @SoraLKim)!
Some cool highlights (1/5)
authors.elsevier.com/c/1iFoy… – at Merced, CA
Michael Griffiths retweeted
Just out, a 66 million year history of atmospheric CO2. Key take away: CO2 hasn't been at today's levels for at least 3 million years. These high CO2 worlds in the geological past had less ice and *much* higher sea levels 📈🌊 #COP28 science.org/doi/10.1126/scie…
ALT A graph showing the history of CO2 over the last 66 million years superimposed onto of colours indicating global temperatures
Michael Griffiths retweeted
Our paper on 2k hydroclimate is out today in @NatureGeosci! w/an incredible team of @PAGES_IPO #Iso2k co-authors, incl @npmckay @raindrop_herder @slgstevenson @drmattjones @jonathanjtyler @aquablusee @Elizotope @DrSpeedyDee @iso_topel @HSayani nature.com/articles/s41561-0… [1/2]
Michael Griffiths retweeted
The first global temperature data is in for the full month of September. This month was, in my professional opinion as a climate scientist – absolutely gobsmackingly bananas. JRA-55 beat the prior monthly record by over 0.5C, and was around 1.8C warmer than preindutrial levels.
Michael Griffiths retweeted
New paper by @AnnabelWlf et al. shows evolution of Southeast #AsianMonsoon in the #Holocene using #speleothem records. nature.com/articles/s41467-0…
Thrilled for you and the group! @AnnabelWlf – at Shrewsbury, NJ
Are you interested in the Asian monsoon? Speleothems? Did you always wonder what really happened to the winter monsoon during the Holocene??? 🧐🧐
Look no further!! ⬇️⬇️⬇️😎
nature.com/articles/s41467-0…
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Michael Griffiths retweeted
The world is on track to experience its warmest August on record, beating the prior record set in 2016 by a fairly large margin. This further increases the likelihood that 2023 will be the warmest year since global records began in the mid-1800s.
Michael Griffiths retweeted
👀 A short piece on an exciting recent paper by Griffiths, Eagle, and @SoraLKim et al that I had the pleasure of writing for @PNASNews is live… check it out: pnas.org/doi/abs/10.1073/pna… and go read the original paper! pnas.org/doi/10.1073/pnas.22… 🦈🦷🔬
Michael Griffiths retweeted
The iconic 15-metre-long megatooth shark known as megalodon – who reigned the world’s waters up to 3.6 million years ago – may have been warm-blooded in some of its body parts. newscientist.com/article/237…