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Darren Gröcke

@grockesibl.bsky.social
466 followers 164 following 87 posts

Stable isotope biogeochemist, environmental science, archaeology, marine pollution, geologist, dog-lover, Australian, Durham University

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Darren Gröcke @grockesibl.bsky.social · 13/06/2026
Farming erosion when you have rain and no cover crop. Sometimes it can’t be helped but this field has been barren for over a month!!!
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Andrej Spiridonov @andrejpaleo.bsky.social · 07/04/2026
Chemostratigraphy of the mass extinction interval helps the untangling of the global crisis: "...redox- sensitive proxies, indicating that wildfire activity intensified in response to post- OAEs oxygen rise rather than triggering anoxia." www.science.org/doi/pdf/10.1... 🧪 ⚒️ #Geology #Paleobio
Chemostratigraphic profiles of the 7- m Chattanooga Shale section exposed in Chestnut Mound, central Tennessee, United States.
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Darren Gröcke @grockesibl.bsky.social · 31/03/2026
A good accurate report, but honestly which seaside town around the UK would not have seabird markers in the water!!! #NorthYorkshireCouncil #DurhamUniversity #SurfersAgainstSewage #EnvironmentAgency www.thisisthecoast.co.uk/news/local-n...
thisisthecoast.co.uk
Scientists and Regulators Grapple with Scarborough’s Water Quality Puzzle
Two scientific reports attempting to untangle the complex web of factors affecting bathing water quality in Scarborough’s North and South Bays have come to differing opinions on the impact of Seagulls...
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Darren Gröcke @grockesibl.bsky.social · 13/01/2026
Look at the size of this seaweed collected by my PhD student Freya Alldred in Antarctica. It’s 5.5m in length. 😳 #DurhamUniversity
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Darren Gröcke @grockesibl.bsky.social · 26/12/2025
I just supported this case! www.crowdjustice.com/case/protect...
crowdjustice.com
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Darren Gröcke @grockesibl.bsky.social · 18/12/2025
Well, that is it for 2025. My instruments have been shut down, the lab has had a clean up and the lights are off now until the 05 January 2025. I much needed rest. 😁
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Darren Gröcke @grockesibl.bsky.social · 17/12/2025
Out today collecting amphipods at the Tees Estuary - let’s see if they contain any pathogens 🧐
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Durham University @durham.ac.uk · 09/12/2025
Scientists from @durhamearthsci.bsky.social have helped study a rare rock core taken from deep inside the Great Glen Fault in the Scottish Highlands. @bgs.ac.uk Learn more: www.durham.ac.uk/news-events/...
durham.ac.uk
Durham researcher helps explain secrets of the Great Glen Fault - Durham University
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Dr. Lucky Tran @luckytran.com · 10/12/2025
The EPA has removed references about humans causing climate change from its website. No US government website can be trusted for science information.
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Mike Okuda @mikeokuda.bsky.social · 05/12/2025
How does global warming cause colder winter storms? whowhatwhy.org/2019/11/23/t...
whowhatwhy.org
The Paradox of Global Warming and Colder Winters - WhoWhatWhy
If the cold weather makes it harder for you to argue with climate change deniers about the existence of global warming, this story is for you.
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Prof Ian Hall @ianhall.bsky.social · 07/12/2025
🌊 Sargassum in the north Sargasso Sea has dramatically declined since 2015, with seasonal growth cycles disrupted and biomass maxima shifting …potentially driven by rising SSTs and marine heatwaves www.nature.com/articles/s41...
nature.com
Dramatic decline of Sargassum in the north Sargasso Sea since 2015 - Nature Geoscience
Sargassum biomass in the north Sargasso Sea declined drastically since 2015, co-occurring with related reductions in the northwest Gulf of Mexico and an expansion of the Great Atlantic Sargassum Belt,...
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Darren Gröcke @grockesibl.bsky.social · 05/11/2025
Using nitrogen isotopes in seaweed over a 2-year period we have been able to pinpoint the source of poor water quality in Scarborough - further research is required in Scalby Beck to pinpoint the sources of human sewage and agricultural manure www.durham.ac.uk/news-events/...
durham.ac.uk
Seaweed study prompts water quality investigation - Durham University
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Sussex Kelp Recovery Project (SKRP) @sussexkelp.bsky.social · 06/10/2025
🌏 Why was the #KelpSummit2025 so important? Hear from some of our key speakers: Cat Wilding @thembauk.bsky.social, Erin Lawes (Environment Agency), @rodneyforster.bsky.social, @grockesibl.bsky.social & @pippajmoore.bsky.social To view more from the Summit, visit the link in our bio.
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Durham University @durham.ac.uk · 18/09/2025
Bronze and Iron Age farmers in the Middle East prioritised wine production over olive growing in times of climatic change. Researchers in our Department of Archaeology and @durhamearthsci.bsky.social analysed charred seeds and wood samples 👉 www.durham.ac.uk/news-events/...
durham.ac.uk
Middle East Bronze and Iron Age cultures wine production - Durham University
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Darren Gröcke @grockesibl.bsky.social · 30/08/2025
Our sunflower experiment is coming along nicely. No clear relationship between soil amendment and growth yet. But I’m hypothesising we will see a difference in the actual flower and seeds. Time will tell…
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Darren Gröcke @grockesibl.bsky.social · 17/08/2025
Working on a Sunday to collect some heritage long-straw rye plants as part of a bread study - lovely field setting
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Darren Gröcke @grockesibl.bsky.social · 12/08/2025
Today we are coring soil again in Cumbria but today we have supervisors making sure we do it properly 😂
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Darren Gröcke @grockesibl.bsky.social · 05/08/2025
As an Aussie who has visited and marvelled at its beauty over 30 years ago it is disheartening to read of its decline and pressure to survive. Great Barrier Reef suffers worst coral decline on record www.bbc.com/news/article...
bbc.com
Great Barrier Reef suffers worst coral decline on record
Reefs have been battered by cyclones and starfish that eat coral, but heat stress driven by climate change is the main cause of damage.
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Darren Gröcke @grockesibl.bsky.social · 29/07/2025
A scientist’s wine decanter 😂🍷🤪 Thank you Fisher Scientific UK
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Darren Gröcke @grockesibl.bsky.social · 09/06/2025
Our grass experiment is coming along very nicely in Cumbria. Rain and warm weather has helped. Now we leave it for a month and see what impact the soil amendments have had. @durhamearthsci.bsky.social
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Darren Gröcke @grockesibl.bsky.social · 28/05/2025
In Cumbria again today measuring our Miyawaki trees and seeds no if our grass experiments have started to sprout. 😁😁 Westmorland Furness Council Lynster Farmers Group Durham University Fieldwork@durham
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Darren Gröcke @grockesibl.bsky.social · 13/05/2025
Back in Cumbria - glorious weather for fieldwork - been worried about our Miyawaki trees but they are sprouting - and tonight we came across a herd of deers including an albino deer 😁 wow
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Darren Gröcke @grockesibl.bsky.social · 09/05/2025
North East universities get £8.9m to commercialise research www.bbc.co.uk/news/article...
bbc.co.uk
North East universities get £8.9m to commercialise research
Durham University's head says the money could benefit local communities through new businesses.
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Darren Gröcke @grockesibl.bsky.social · 02/05/2025
This morning I am analysing some alcohol / spirit dated back to 1760… oh it smells heavenly. I wonder what carbon sources were used in its creation ???
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Darren Gröcke @grockesibl.bsky.social · 25/04/2025
1200 trees planted in a day - just another 800 to go. An amazing job by Ellie Ward and Myself although we are suffering from abundant nettle stings 😬
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Darren Gröcke @grockesibl.bsky.social · 23/04/2025
1600 kg of biochar and 2000 native trees - let the games begin Durham University Brodie Biomass Trees Please Lynster Farmers Group
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Darren Gröcke @grockesibl.bsky.social · 22/04/2025
Ok. It looks like a more daunting task in the field compared to drawing up the designs on Google Earth - I barely see the car!!! Thank heavens for the LFG farmers who have come to the rescue - more photos tomorrow
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Darren Gröcke @grockesibl.bsky.social · 20/04/2025
Off to Cumbria and the farms again this week… soil coring, water monitoring and planting over 2000 trees in a woodland experiment Hugh Ward, Emma Donnelly, Tamara Finkelstein Agriculture and Horticulture Development Board Woodland Trust @naturalengland.bsky.social @durhamearthsci.bsky.social
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Sussex Kelp Recovery Project (SKRP) @sussexkelp.bsky.social · 17/04/2025
Shout out 📣 For those of you who follow us, you'll have had the pleasure of being whisked away to the silky, caramel fronds of a Sussex kelp bed thanks to the beautiful images and footage taken by Paul Boniface, from the amazing Sussex Underwater team. 📸 Guess who? Paul Boniface/Sussex Underwater
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Darren Gröcke @grockesibl.bsky.social · 08/04/2025
Farmers and I have been battling for over 12 months to get a permit / license to repair non-functioning tidal gates, but it’s too late… the River Winster is now showing signs of decay and death - bureaucracy and stone walling has stopped us from stopping environmental damage
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Darren Gröcke @grockesibl.bsky.social · 04/04/2025
It was an honour and privilege to present and take part in the First UK kelp conference. May they continue around the country. UK's first kelp conference held in Brighton
bbc.com
UK's first kelp conference held in Brighton
Kelp Summit will help to shape the future of kelp ecosystems in the UK and beyond, organisers say.
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Darren Gröcke @grockesibl.bsky.social · 02/04/2025
It was great talking to the Sussex Kelp Restoration Project today. For someone who has not analysed any Sussex kelp they were so welcoming and inquisitive it was amazing.
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Darren Gröcke @grockesibl.bsky.social · 01/04/2025
On the train to Brighten today to attend and present at the Kelp Summit 2025.
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Darren Gröcke @grockesibl.bsky.social · 31/03/2025
On the Scarborough coast again collecting seaweed to trace the nitrogen pollution in the region. Is it sewage or chemical or manure??? North Yorkshire Council Yorkshire Water Durham University
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Darren Gröcke @grockesibl.bsky.social · 26/03/2025
Holocene hydroclimate and landscape changes as drivers of organic carbon cycling in a small northern Fennoscandian lake #stableisotopes #chironomids #climatechange
sciencedirect.com
https://www.sciencedirect.com/science/article/pii/S027737912500143X
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Darren Gröcke @grockesibl.bsky.social · 25/03/2025
Durham University Archaeologists find 'unprecedented' Iron Age hoard www.bbc.co.uk/news/article...
bbc.co.uk
'Unprecedented' Melsonby Iron Age hoard found by archaeologists
Archaeologists say they have found more than 800 items dating back about 2,000 years.
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Darren Gröcke @grockesibl.bsky.social · 22/03/2025
Out yesterday practicing our skills with the @bluerobotics.bsky.social BlueRov 2 underwater drone. Not as easy as it looks, especially when you didn’t grow up with PlayStations 🙈 @durhamearthsci.bsky.social
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Mike Peacock @peatymike.bsky.social · 07/03/2025
And here's our article with @tksilver.bsky.social about our new paper.
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Rodney Forster @rodneyforster.bsky.social · 15/03/2025
It's find-a-PhD season and here is a very topical one with @grockesibl.bsky.social at Durham. www.jobs.ac.uk/job/DMH221/p...
jobs.ac.uk
PhD Studentship - How Polluted are our Modern Ports? An Eco-bio-geological Investigation at Durham University
Apply for a PhD Studentship - How Polluted are our Modern Ports? An Eco-bio-geological Investigation. Discover a wide range of PhD opportunities at jobs.ac.uk.
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Darren Gröcke @grockesibl.bsky.social · 06/03/2025
Out in Cumbria again coring farm soils. 😁
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Darren Gröcke @grockesibl.bsky.social · 26/02/2025
A clear sign that oil is the name of the game. Renewable energy is now getting less investment - a massive u-turn in the fight against human-induced climate change 😡 www.bbc.co.uk/news/article...
bbc.co.uk
BP shuns renewables in return to oil and gas
The energy giant has announced its strategy after rivals also rowed back on green energy plans.
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Darren Gröcke @grockesibl.bsky.social · 22/02/2025
The Lynster Farmers Group and I were visited by the Department for Environment, Food and Rural Affairs on Friday in Cumbria, specifically Dame Tamara Finkelstein, Emma Donnelly and Jonathan Marsden
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Tereza Jarníková @tjarnikova.bsky.social · 15/02/2025
Both UK and international scientists can sign a letter to the royal society saying that he shouldn't be a member here (It's a bit of a futile gesture I'm afraid, but I did sign): docs.google.com/forms/d/e/1F...
docs.google.com
Open letter to the President of the Royal Society – time to stand up for your values
If you wish to show your support for the letter below regarding apparent inaction by the Royal Society in the face of breaches of its code of conduct by Elon Musk FRS, please sign below. I invite anyo...
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Darren Gröcke @grockesibl.bsky.social · 15/02/2025
Would you consider this an environmentally friendly way to treat water from an old municipal tip??? Where is the continued maintenance of said system???
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Darren Gröcke @grockesibl.bsky.social · 02/02/2025
Added proof that the water industry in the UK has deflected blame when they are the cause of our water environmental crisis Time for the UK Government and Environment Agency to take action #sewagepollution www.nature.com/articles/s44...
nature.com
Water industry strategies to manufacture doubt and deflect blame for sewage pollution in England - Nature Water
In the past 5 years, a huge amount of untreated wastewater has been released into English waterways. An analysis of the communication used by the water utilities shows that they have employed strategi...
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Darren Gröcke @grockesibl.bsky.social · 28/01/2025
The start of so many similar stories that will come out on the university sector - the system is broken like so many other aspects in the UK like the NHS, water companies, railway sector etc. 😔 My thoughts are with colleagues I know at Cardiff University www.bbc.co.uk/news/article...
bbc.co.uk
Cardiff: University confirms plans to cut 400 jobs
Vice-chancellor Wendy Larner says
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Bryce Stewart @bd-stew.bsky.social · 25/01/2025
Happy #MarineBiologistDay compadres! 🦈🪸🦑🦐🦞🦀🐙🐳🐋🐬🦭🐟🐠🐡🪼
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Darren Gröcke @grockesibl.bsky.social · 18/01/2025
Out at Cullercoats Newcastle yesterday playing with our Blue Robotics BlueRov2 underwater drone Dove Marine Lab @durhamearthsci.bsky.social
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Darren Gröcke @grockesibl.bsky.social · 06/01/2025
Have arrived in Hull for the British Phycological Society winter meeting at the University of Hull @rodneyforster.bsky.social Looking forward to meeting people and presenting our herbaria study on the Mersey Estuary
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Thomas R. Holtz, Jr. @arctomet.bsky.social · 31/12/2024
Just in time for the year's end: an updated geochronology chart from the ICS: stratigraphy.org/ICSchart/Chr...
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