Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 07/10/2026www.uni-kiel.de/de/detailans...uni-kiel.deAuftakt für zweite Förderphase des DFG-Schwerpunktprogramms SPP 2299 in KielForschung zu tropischen Klimaextremen und Korallenriffen im Fokus der kommenden drei Jahre – CAU-Klimaforscherin Miriam Pfeffer übernimmt die Koordination des Verbundes 031
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)UN Environment Programme @unep.org · 01/10/2026The future of coral reefs is worrying. A recent report from the Global Coral Reef Monitoring Network found that a succession of marine heatwaves over the past three decades has destroyed at least 9.5% of the world's corals. 🪸 Here’s what you need to know: www.unep.org/news-and-sto... 14825
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 30/09/20263/3 "Furthermore, we are currently anticipating another global coral bleaching event in early 2027, as a result of the unusually strong El Niño, which is currently continuing to intensify." #SPP2299 #CoralReefs #ElNiño 030
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 30/09/20262/3 "The Kick-Off meeting has once again shown us just how vibrant our community is and how committed the next generation of researchers, in particular, are to tackling the current challenges posed by climate change." — Prof. Miriam Pfeiffer 131
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 30/09/20261/3 Coral reefs face their biggest threat: rising tropical sea temperatures. This week, 35 scientists kicked off phase 2 of DFG SPP 2299 "Tropical Climate Variability & Coral Reefs" at Kiel University, coordinated by Prof. Miriam Pfeiffer (CAU Kiel). 🧵👇 131
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)MARUM @marumunibremen.bsky.social · 11/09/2026New puplication by @climatereefs.bsky.social 🪸 Corals are climate archives. Their skeletons show how El Niño and La Niña changed in the Pacific over 1,500 years ➡️ www.marum.de/en/Changing-... #MARUM #MarineResearch #ClimateResearch 0116
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)ICRS International Coral Reef Society @icrs.bsky.social · 09/09/2026🪸 Life is better in color! September is Coral Bleaching Awareness Month. We’re joining the Coral Reef Alliance and organizations worldwide in bleaching our logo to raise awareness of coral bleaching, one of the most visible signs of reef stress. 🔗 go.coral.org/coral-bleach... 14014
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 09/09/2026This study led by Oliver Knebel @marumunibremen.bsky.social involved @thomasfelis.bsky.social, @andydolman.bsky.social, @goetheuni.bsky.social and more. Publication Highlight – Changing Pacific Climate, ENSO Diversity and Coral Responses Over the Common Era share.google/NZm6qxKyU976...share.googlePublication Highlight – Changing Pacific Climate, ENSO Diversity and Coral Responses Over the Common Era 053
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 09/09/2026🌊 The past tells a more complex ENSO story. Corals from the Marshall Islands suggest changing ENSO diversity over the Common Era, including volcanic cooling—and that coral responses to thermal stress today are unlike those in the past. New paper out @commsearth.nature.com: doi.org/10.1038/s432...doi.orgWestern Pacific corals reveal Common Era changes in ENSO-diversity, thermal stress, and volcanic cooling - Communications Earth & EnvironmentCentral Pacific El Niño activity increased between the first and second millennia of the Common Era, while volcanic eruptions likely drove cooling episodes and thermal stress impacted calcification on... 1107
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)Communications Earth & Environment @commsearth.nature.com · 07/09/2026🌊Central Pacific El Niño activity increased between the first and second millennia CE, while volcanic eruptions likely drove cooling episodes. @climatereefs.bsky.social @marumunibremen.bsky.social @thomasfelis.bsky.social @andydolman.bsky.social 👉Read more here: www.nature.com/articles/s43...nature.comWestern Pacific corals reveal Common Era changes in ENSO-diversity, thermal stress, and volcanic cooling - Communications Earth & EnvironmentCentral Pacific El Niño activity increased between the first and second millennia of the Common Era, while volcanic eruptions likely drove cooling episodes and thermal stress impacted calcification on... 0155
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 01/07/2026A blog article about the paper can be found here: Publication Highlight – Climate Oscillations Shape Nature’s Coral Refuges in a Warming Ocean share.google/sE8ovlpxVXub...share.googlePublication Highlight – Climate Oscillations Shape Nature’s Coral Refuges in a Warming Ocean 042
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 01/07/2026Do not miss the Supplementary Information of the paper: Tropical climate modes control strength and distribution of thermal stress mitigation in a coral reef refugia | Scientific Reports share.google/tfQpUHItAjX6...share.googleTropical climate modes control strength and distribution of thermal stress mitigation in a coral reef refugia - Scientific ReportsScientific Reports - Tropical climate modes control strength and distribution of thermal stress mitigation in a coral reef refugia 052
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 01/07/2026@hcamelia.bsky.social @thomasfelis.bsky.social @jannhargreaves.bsky.social @marumunibremen.bsky.social @geomarkiel.bsky.social @dfg.de 041
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 01/07/2026📢 New paper out! 🌊 Why do some coral reefs survive marine heatwaves better than others? The answer lies far beyond the reef itself. Natural coral reef refuges are dynamic. Their cooling depends on tropical climate modes (ENSO,IOD), shaping coral resilience in a warming ocean Read more: rdcu.be/fq0mlrdcu.beTropical climate modes control strength and distribution of thermal stress mitigation in a coral reef refugiaScientific Reports - Tropical climate modes control strength and distribution of thermal stress mitigation in a coral reef refugia 4126
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 06/06/2026#SPP2299 phase 1 coordinator @thomasfelis.bsky.social presenting the @dfg.de priority programme at the 3rd Taiwan International Symposium on Coral Reefs (TISCR 2026) in Kaohsiung today @marumunibremen.bsky.social 063
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)ICRS International Coral Reef Society @icrs.bsky.social · 04/06/2026World’s Fourth Mass Coral Bleaching Event Likely Ended in 2025 www.nesdis.noaa.gov/news/worlds-...nesdis.noaa.govWorld’s Fourth Mass Coral Bleaching Event Likely Ended in 2025NOAA experts have determined that the fourth global coral bleaching event likely concluded in mid-2025 following unprecedented heat stress across the world’s coral reefs. 056
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 06/06/2026The 3rd Taiwan International Symposium on Coral Reefs (TISCR 2026) has just begun. SPP 2299 will be giving a presentation this afternoon in sunny Kaohsiung 032
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 25/05/2026#SPP2299 presented today at JpGU-AGU Joint Meeting 2026 #JpGU2026 in Chiba, Japan - including some research highlights from Phase 1 053
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 18/05/2026A view "behind the study" can be found here: www.uni-kiel.de/en/details/n... 042
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 18/05/2026New study by #SPP2299 researcher Takaaki Watanabe published in open-access Geophysical Research Letters: agupubs.onlinelibrary.wiley.com/doi/10.1029/... "Coral Reefs in the Indonesian Seas Threatened by Heat and Cold Stress" @agu.org @uni-kiel.de #AGUPubs #CAU #UniKielagupubs.onlinelibrary.wiley.comCoral Reefs in the Indonesian Seas Threatened by Heat and Cold StressIn the Indonesian Seas, cold stress events caused by positive Indian Ocean Dipole are stronger and longer-lasting than heat stress events Heat stress events in the Indonesian Seas, triggered by E... 184
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 07/05/2026New blog about #SPP2299 early career researcher Diana Diers from @goetheuni.bsky.social: "What can coral geochemistry reveal about past climate variability?" Check it out on our website: www.spp2299.tropicalclimatecorals.de/2026/05/06/w... www.spp2299.tropicalclimatecorals.de 073
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 07/05/2026#SPP2299 early career researcher @hcamelia.bsky.social is presenting the currently longest monthly coral proxy time series of temperature and hydrology for the northeastern Indian Ocean, back to the late 18th century, at #EGU26 www.spp2299.tropicalclimatecorals.de @marumunibremen.bsky.social 094
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 05/05/2026#SPP2299 presented today at #EGU26 in sunny Vienna 074
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 23/04/2026New blog post on our website highlighting the #SPP2299 EOCENE project at Leipzig University: From Fossil Corals to Climate Data: Methods and Insights share.google/0jb2vokX5qTv... 085
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 19/04/2026A "Behind the Paper" blog can be found her - check it out! Corals Under Cross-Examination: Signal and Noise in the Climate Archive | Research Communities by Springer Nature share.google/oEUskHVRPKQ9...share.googleCorals Under Cross-Examination: Signal and Noise in the Climate Archive 062
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 19/04/2026New research by #SPP2299 researcher Andrew Dolman in @commsearth.nature.com on signal and noise in coral records Strontium to calcium ratio and oxygen isotopic coral records can exaggerate past decadal tropical climate variability | Communications Earth & Environment share.google/vv3fuTuzLZ3l...share.googleStrontium to calcium ratio and oxygen isotopic coral records can exaggerate past decadal tropical climate variability - Communications Earth & EnvironmentStrontium to calcium ratio and oxygen isotopic records from single corals contain a strongly autocorrelated non-climate noise component, which can inflate reconstructed temperature variability, according to analyses of coral records and sea surface temperature data. 1114
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 13/04/2026New blog on our website about the @pages-ipo.bsky.social CoralHydro2k Seawater δ¹⁸O Database, an initative lead by Alyssa Atwood, with contribution by #SPP2299. Check it out! Unlocking Hidden Stories of the Ocean: A New Global Database of Seawater Oxygen Isotopes share.google/gCoxSflxgdMV...share.googleUnlocking Hidden Stories of the Ocean: A New Global Database of Seawater Oxygen Isotopes 054
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)MARUM @marumunibremen.bsky.social · 13/04/2026Unlocking Hidden Stories of the Ocean: A new study introduces a global database of oxygen isotopes in seawater. The researchers have compiled measurement data into a unified, freely accessible, and standardized resource ➡️ www.marum.de/en/Unlocking... 0106
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 13/03/2026The #SPP2299 team @marumunibremen.bsky.social has contributed to an international initiative, a database of oxygen and hydrogen isotope measurements in seawater for research into the global water cycle and climate change @jannhargreaves.bsky.social @thomasfelis.bsky.social @pages-ipo.bsky.socialshare.googleThe PAGES CoralHydro2k Seawater δ18O Database: a FAIR-aligned compilation of seawater δ18O data to uncover “hidden” insights from the global oceanAbstract. The stable isotope values of seawater (δ18O and δ2H) provide valuable information on the exchange of water between the ocean, atmosphere, and cryosphere and on ocean mixing processes. As suc... 0118
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 03/03/2026Hana Camelia, PhD researcher in the DFG Priority Programme "Tropical Climate Variability & Coral Reefs" #SPP2299, successfully defended her doctoral thesis at the University of Bremen today. Hana - we are so proud of you! 0100
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 26/02/2026New blog on our website! Check it out! How Life at Sea Prepared Luisa Meiritz for Studying Coral Bleaching share.google/pMh2OSHXN5r7... @geomarkiel.bsky.socialshare.googleHow Life at Sea Prepared Luisa Meiritz for Studying Coral Bleaching 074
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 29/01/2026@marumunibremen.bsky.social @kielunimarine.bsky.social @dfg.de 020
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 29/01/2026The DFG Priority Programme “Tropical Climate Variability & Coral Reefs” (SPP 2299) has released a new video highlighting the programme’s current research activities and outlining upcoming scientific priorities. Check out the new video on our YouTube channel: youtu.be/PUQUnIhgVEk?...youtu.beSPP 2299 Research & Future DirectionsYouTube video by Tropical Climate Variability & Coral Reefs 197
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)CLIVAR @wcrp-clivar.bsky.social · 03/12/2025[ENSO Webinar Series] We are pleased to invite you to join us for the first webinar of the CLIVAR Pacific Region Panel’s newly launched ENSO webinar series: January 22, 2026 | 07:00 UTC GoTo Meeting – meet.goto.com/198838725 Scan the QR code to sign up Check more: www.clivar.org/events/enso-... 073
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)Alan D. Foreman @climatearchivist.bsky.social · 06/11/2025Check out our latest work, led by Jon Jung, Ph.D. student in the @amglab.bsky.social at @mpic.de: www.nature.com/articles/s41... Here we show that the supply of excess phosphorous from accounts for the majority of observed Sargassum variability since 2011. 🌊 🧪 #Paleosky #CoralReefsnature.comEquatorial upwelling of phosphorus drives Atlantic N2 fixation and Sargassum blooms - Nature GeoscienceHigh near-surface nitrogen-fixation rates that promoted the recent growth of the Great Atlantic Sargassum Belt were tied to greater upwelling of phosphorus from the equatorial Atlantic, according to c... 11113
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)Max Planck Institute for Chemistry @mpic.de · 07/11/2025The driver of Sargassum blooms in the Atlantic Ocean: Upwelling of phosphorus-rich deep water promotes an N-fixing symbiont of the Sargassum algae giving it a competitive advantage. 👉https://tinyurl.com/br5drzux #SargassumBlooms #ClimateResearch #MarineScience #MPIChemie #EnvironmentalScience 🌎tinyurl.comThe driver of Sargassum blooms in the Atlantic Ocean 074
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)Maren Ziegler @marenziegler.bsky.social · 07/11/2025Excited to share our work using #aDNA to reconstruct #Symbiodiniaceae dynamics from #coral cores. Led by José Grillo, @jessireichert.bsky.social, @nessatir.bsky.social part of #TaraPacific expedition & supported by #SPP2299 @climatereefs.bsky.social doi.org/10.1111/gcb....doi.orgCoral Skeletal Cores as Windows Into Past Symbiodiniaceae Community DynamicsStony corals rely on their association with symbiotic algae for their growth and health. However, corals can lose these symbionts in response to heat stress and bleach, but they can also recover from... 0139
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 10/10/2025The "Meeting & Status Seminar 2025" of the @dfg.de #SPP2299 Priority Programme "Tropical Climate Variability & Coral Reefs" took place this week in Bremen, Germany Find out more here: www.spp2299.tropicalclimatecorals.de 070
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 10/10/2025@unibremen.bsky.social @amgc-vub.bsky.social @whoi.edu @andreagrottoli.bsky.social 030
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 10/10/2025@freieuniversitaet.bsky.social @gabrielcardosoeco.bsky.social @mjvergotti.bsky.social @geobio.bsky.social @unimelb.bsky.social @benhenley.bsky.social @climatefreund.bsky.social @unileipzig.bsky.social @goetheuni.bsky.social @michaelhenehan.bsky.social @unipotsdam.bsky.social 030
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 10/10/2025@kielunimarine.bsky.social @uni-kiel.de @geomarkiel.bsky.social @eleniwater.bsky.social @edhathorne.bsky.social @jlugiessen.bsky.social @marenziegler.bsky.social @merlinwe.bsky.social @swinnyy.bsky.social @hifmb.de @ibaums.bsky.social @leibniz-zmt.de @uniheidelberg.bsky.social 120
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 10/10/2025We were more than 50 participants from 28 national and international institutions @marumunibremen.bsky.social @thomasfelis.bsky.social @hcamelia.bsky.social @jannhargreaves.bsky.social @mpic.de @amglab.bsky.social @climatearchivist.bsky.social @uni-konstanz.de @reefgenomics.bsky.social 150
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 10/10/2025Thanks to everyone who joined our Meeting & Status Seminar 2025 - It was such a mix of minds and experiences. It was not just about presentations - It was about connecting ideas, perspectives, and people. Events like this remind us why we do research: To explore, to question, and to grow - Together 3164
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 08/10/2025Next talk by Mandy Freund @climatefreund.bsky.social about "ENSO during the past millennium" 032
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 08/10/2025Next talk by Iliana Baums @ibaums.bsky.social on "Reconstructing historical population dynamics of corals" @hifmb.de @marumunibremen.bsky.social 082
Reposted by Tropical Climate Variability & Coral Reefs (SPP 2299)Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 08/10/2025Ben Henley @benhenley.bsky.social kicking off the 3rd day of the #SPP2299 "Meeting & Status Seminar 2025" with a keynote on "Heighest ocean heat in four centuries places Great Barrier Reef in danger" @marumunibremen.bsky.social @dfg.de 064
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 08/10/2025Ben Henley @benhenley.bsky.social kicking off the 3rd day of the #SPP2299 "Meeting & Status Seminar 2025" with a keynote on "Heighest ocean heat in four centuries places Great Barrier Reef in danger" @marumunibremen.bsky.social @dfg.de 064
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 07/10/2025Last keynote for today by Sara Sanchez on "Data assimilation with coral d18O" 072
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 07/10/2025Ed Hathorne @edhathorne.bsky.social advertising the new coral reference material "Ishi-B SPP2299" Find out more at www.spp2299.tropicalclimatecorals.de/ishi-b-spp22... 162
Tropical Climate Variability & Coral Reefs (SPP 2299) @climatereefs.bsky.social · 07/10/2025First keynote of today by Caroline Ummenhofer on "Indo-Pacific climate variability of the last millennium" 063