Ocean Warming Above 1.5°C Triggered Year-Round Marine Heat Waves
Ocean Heat Records, Monitoring, and Global Reports
The Network Watching the World's Oceans Is Under Pressure
Article link | Phys.org | Phys.org | May 25, 2026
Article explains why global ocean-observing systems are essential for tracking marine heatwaves, sea-level rise, coral bleaching, fisheries collapse, and climate risk.
Earth's Ocean Temperatures Reached All-Time High Levels in 2025
Article link | Earth.com | Earth.com | April 8, 2026
Article reports that ocean heat content reached a record in 2025, raising risks for sea-level rise, stronger storms, ecosystem disruption, and marine heatwaves.
The Ocean Absorbed a Stunning Amount of Heat in 2025
Article link | Institute of Atmospheric Physics, Chinese Academy of Sciences | ScienceDaily | January 14, 2026
Researchers report that Earth's oceans reached record heat levels in 2025, continuing a long-term warming trend tied to storms, sea-level rise, and marine heatwaves.
In 2025, the Ocean Stored a Record-Breaking Amount of Heat
Article link | Eos | Eos | January 9, 2026
Scientists report that ocean heat content reached a new record in 2025, underscoring the ocean's role as the main reservoir of excess greenhouse heat.
Last Year, the Oceans Absorbed a Record-Breaking Amount of Heat
Article link | Live Science | Live Science | January 2026
Article explains that the oceans absorbed record heat in 2025, intensifying risks from sea-level rise, stronger storms, and marine ecosystem damage.
The Oceans Were Hotter Than Ever in 2025
Article link | Time | Time | January 2026
Article summarizes research showing record ocean heat in 2025 and explains why ocean heat content is a major indicator of climate change.
Ocean Heat Content Sets Another Record in 2025
Article link | Y. Pan et al. | Advances in Atmospheric Sciences | January 2026
Researchers report that global ocean heat content reached another record in 2025, confirming continued ocean warming across multiple datasets.
Copernicus Marine Ocean State Report
Article link | Copernicus Marine Service | Copernicus | 2026
The Ocean State Report summarizes ocean warming, marine heatwaves, sea-level rise, ocean circulation, and ecosystem changes using global monitoring data.
State of the Climate 2025
Article link | World Meteorological Organization | WMO | 2026
WMO climate report documents record ocean heat, sea-level rise, marine heatwaves, and climate extremes affecting ecosystems and societies.
European State of the Climate 2025
Article link | Copernicus Climate Change Service | Copernicus | 2026
European climate report documents record ocean warmth and widespread marine heatwaves in European seas.
NOAA Coral Reef Watch Homepage and Near Real-Time Products
Article link | NOAA Coral Reef Watch | NOAA | 2026
NOAA's Coral Reef Watch provides satellite monitoring and forecasts of coral bleaching heat stress as marine heatwaves intensify worldwide.
NOAA Coral Reef Watch Announcements
Article link | NOAA Coral Reef Watch | NOAA | 2026
NOAA announcements track the fourth global coral bleaching event, bleaching monitoring procedures, and new research on heat-driven coral decline.
Ocean Heat Content
Article link | NOAA National Centers for Environmental Information | NOAA | 2026
NOAA climate monitoring tracks ocean heat content, a key measure of long-term ocean warming and marine heatwave risk.
A Global Network of Coral Reef Heat Stress Monitoring Is More Important Than Ever
Article link | NOAA Coral Reef Watch | NOAA | 2026
NOAA's satellite products track coral bleaching alerts, sea-surface temperature anomalies, and marine heat stress in near real time.
Marine Heatwaves Are a Growing Threat to Fisheries
Article link | NOAA Fisheries | NOAA | 2020
NOAA discusses how marine heatwaves affect fish distributions, fisheries management, food webs, and coastal economies.
Climate Change: Ocean Heat Content
Article link | LuAnn Dahlman and Rebecca Lindsey | NOAA Climate.gov | 2020
NOAA explains ocean heat content as a major climate indicator and describes how most excess greenhouse heat is stored in the ocean.
Marine Heatwaves: Drivers, Forecasting, and Thresholds
Ocean Warming Above 1.5°C Triggered Year-Round Marine Heat Waves
Article link | Phys.org | Phys.org | June 2026
Researchers report that when ocean warming passes 1.5°C, marine heatwaves can shift from seasonal events to year-round conditions, putting marine ecosystems under continuous thermal stress.
Ocean-E2E: Hybrid Physics-Based and Data-Driven Global Forecasting of Extreme Marine Heatwaves
Article link | Ruiqi Shu et al. | arXiv | May 28, 2025
Researchers present a hybrid AI and physics-based system for forecasting extreme marine heatwaves, aiming to improve preparation for ocean climate extremes.
Marine Heatwave Forecasts Help Predict Coral Bleaching, Fish Kills and Algal Blooms
Article link | CSIRO | Phys.org | August 12, 2025
Scientists use marine heatwave forecasts to anticipate coral bleaching, fish kills, species movements, and harmful algal blooms around Australia.
Record Marine Heat Waves in 2023 Covered 96% of Oceans Longer Than Average
Article link | Phys.org | Phys.org | July 25, 2025
Study finds that 2023 marine heatwaves affected nearly the entire global ocean surface and lasted far longer than typical events.
Scientists Reveal What Drove 2023's Record-Smashing North Atlantic Ocean Heat
Article link | Phys.org | Phys.org | June 4, 2025
Scientists analyze the causes of 2023's extreme North Atlantic warmth, linking ocean heat to climate change, atmospheric patterns, and marine impacts.
Marine Heat Waves Make Tropical Storm Intensification More Likely
Article link | Roberto González | Eos | October 4, 2024
Study finds that tropical cyclones in the Gulf of Mexico and Caribbean are more likely to intensify rapidly when they pass over marine heatwaves.
The Rapid Rise of Severe Marine Heat Wave Systems
Article link | J. Xavier Prochaska, Claudie Beaulieu and Katerina Giamalaki | arXiv | April 15, 2023
Researchers use a large-scale detection method to show that severe marine heatwave systems have increased rapidly in many ocean regions.
Scientists Identify Heat Wave at Bottom of Ocean
Article link | NOAA | Phys.org | March 17, 2023
Scientists identify bottom marine heatwaves that can affect seafloor ecosystems even when surface temperatures do not appear extreme.
Extreme Marine Heatwaves Under 1.5°C and 2°C Global Warming
Article link | Scientific Reports | Scientific Reports | 2019
Research compares future marine heatwave risks under lower and higher warming levels, showing why limiting warming matters for ocean ecosystems.
Marine Heatwaves Under Global Warming
Article link | Thomas L. Frölicher, Erich M. Fischer and Nicolas Gruber | Nature | August 15, 2018
Study finds that global warming is projected to strongly increase marine heatwave frequency, duration, intensity, and ecosystem risk.
Record-Breaking Marine Heatwave Powered by Climate Change
Article link | University of Tasmania | ScienceDaily | July 18, 2017
Scientists link a record marine heatwave to human-caused climate change and warn that similar ocean heat extremes will become more likely.
The Northeast Pacific Marine Heatwave of 2013–2015
Article link | Nicholas A. Bond et al. | Science | 2015
Scientists analyze the North Pacific marine heatwave that became known as "the Blob," linking persistent warm water to atmospheric and oceanic drivers.
Coral Bleaching and Reef Impacts
Ocean Surface Temperatures Hit a Record High for June
Article link | Damian Carrington | The Guardian | July 1, 2026
Scientists warn that record ocean surface temperatures show the oceans are absorbing extreme amounts of heat, increasing risks for marine heatwaves, storms, coral bleaching, and climate instability.
The Most Intense Global Coral Bleaching Event on Record Has Likely Ended, NOAA Confirms
Article link | Global Coral Reef Monitoring Network | GCRMN | June 8, 2026
NOAA scientists conclude that the fourth global coral bleaching event was the most widespread and intense on record, driven by prolonged ocean heat stress across major reef regions.
Climate-Based Tool Predicts Coral Bleaching Months in Advance
Article link | Phys.org | Phys.org | June 2, 2026
Scientists developed a forecasting tool that can warn of coral bleaching months ahead by tracking climate signals linked to unusually warm ocean temperatures.
What Is the Future of Coral Reefs?
Article link | The Nature Conservancy | Nature Conservancy Magazine | May 8, 2026
Article examines coral reef futures under warming oceans, repeated bleaching, marine heatwaves, and conservation efforts.
Record-Breaking Marine Heatwaves Across Global Coral Reefs
Article link | AGU Researchers | Geophysical Research Letters | April 30, 2026
Study analyzes record-breaking marine heatwaves across coral reef regions during the fourth global coral bleaching event.
Coral Refuges in Western Australia Resist 2025 Bleaching
Article link | Phys.org | Phys.org | May 22, 2026
Researchers identify Western Australian coral refuges that resisted severe 2025 marine heatwaves, offering clues for reef conservation in a warming world.
Cold Events Rival Heat Waves in Bleaching Indonesia's Corals
Article link | Phys.org | Phys.org | May 12, 2026
Study shows Indonesian corals face stress from both warming-driven heat events and cold-water disturbances, complicating reef survival under changing ocean conditions.
Massive Marine Heat Wave Caused Caribbean Coral Reefs to Erode Faster Than They Grow
Article link | Phys.org | Phys.org | May 5, 2026
Researchers find that the 2023 Caribbean marine heatwave, combined with coral disease, pushed reefs toward erosion faster than corals can rebuild them.
Coral Bleaching: How Warming Seas Are Transforming the World's Reefs
Article link | Rhett A. Butler | Mongabay | February 2026
Explainer describes how unusually warm ocean temperatures cause coral bleaching and how repeated marine heatwaves are transforming reef ecosystems.
The 4th Global Coral Bleaching Event: Ushering in an Era of Rapid Reef Change
Article link | B. L. Spady et al. | Coral Reefs | 2026
Scientific article frames the fourth global coral bleaching event as a warning sign that coral reefs are entering a new era of climate-driven disruption.
Severe and Widespread Coral Reef Damage During the 2014–2017 Global Coral Bleaching Event
Article link | Smithsonian-led research team | Nature Communications | February 2026
Global analysis estimates the scale of coral bleaching and mortality during the 2014–2017 marine heatwave, finding widespread reef damage.
Coral Bleaching 2026: What It Means for the Reef
Article link | Great Barrier Reef Foundation | Great Barrier Reef Foundation | 2026
Explainer describes coral bleaching, marine heatwave risks, and what warming oceans mean for the Great Barrier Reef.
The Worst Coral Bleaching Event Ever Recorded Damaged Half the World's Reefs
Article link | Smithsonian | ScienceDaily | February 12, 2026
Scientists estimate that the 2014–2017 global marine heatwave caused major bleaching across roughly half of the world's coral reefs.
Half of the World's Coral Reefs Suffered Major Bleaching During the 2014–2017 Global Heat Wave
Article link | Smithsonian | Phys.org | February 10, 2026
Large global analysis finds that coral bleaching during the 2014–2017 marine heatwave was more severe and widespread than previously estimated.
Coral Warnings
Article link | Elisabeth King | Smithsonian Tropical Research Institute | February 10, 2026
Smithsonian article explains new science-backed coral reef warming alerts and the growing threat of global marine heatwaves.
Will 2026 Be the Year When Coral Reefs Pass Their Tipping Point?
Article link | Plymouth Marine Laboratory | PML | January 6, 2026
Scientists warn that record ocean heat and repeated bleaching may push warm-water coral reefs closer to a dangerous climate tipping point.
Marine Heatwave-Driven Mortality of Bleached Corals Is Exacerbated by Disease
Article link | Marine ecology researchers | Proceedings of the Royal Society B | December 2025
Study shows how marine heatwave bleaching and black band disease can interact to increase coral mortality.
Climate Extremes Trigger Rare Coral Disease and Mass Mortality
Article link | Phys.org | Phys.org | December 9, 2025
Study links marine heatwave-driven coral mortality with disease outbreaks, showing how warming and biological stressors can combine to devastate reefs.
Heat-Driven Functional Extinction of Caribbean Acropora Corals From Florida's Coral Reef
Article link | Coral reef researchers | Science | November 2025
Researchers document severe heat-driven collapse of key Caribbean reef-building corals after extreme ocean temperatures.
Clownfish and Anemones Are Disappearing Due to Heat
Article link | Phys.org | Phys.org | September 18, 2025
Researchers report that unusually warm water can bleach sea anemones and disrupt clownfish habitat, showing how marine heat affects reef relationships.
Marine Heatwaves Offer a Disturbing Preview of How Warmer Waters Will Impact Ocean Life
Article link | Earth.com | Earth.com | July 31, 2025
Article describes marine heatwaves as a preview of future ocean conditions, with risks to corals, fisheries, kelp forests, and food webs.
Shrinking Nemo: Clownfish Survive Heatwaves by Shrinking
Article link | Newcastle University | ScienceDaily | May 21, 2025
Study finds that clownfish may shrink during marine heatwaves, showing one unusual survival response to warming reef conditions.
Heat-Tolerant Symbionts a Critical Key to Protecting Florida's Corals
Article link | University of Miami Rosenstiel School | ScienceDaily | May 16, 2025
Researchers examine heat-tolerant coral symbionts as a possible tool for improving coral survival under warming and marine heatwave stress.
Winter's Coming but the Heat Stays On for Australia's Coral Reefs
Article link | Phys.org | Phys.org | May 12, 2025
Article reports that prolonged warm-water conditions continued to threaten Australian coral reefs even outside the usual summer heat season.
Over 80% of the World's Reefs Hit by Bleaching Event
Article link | World Economic Forum | World Economic Forum | April 30, 2025
Article summarizes NOAA data showing that the ongoing global coral bleaching event affected more than 80% of the world's reef area.
Mass Bleaching of Marine Sponges Largest Event Recorded
Article link | Phys.org | Phys.org | August 8, 2024
Researchers report mass bleaching of marine sponges after a heatwave, showing that ocean warming threatens many habitat-forming species beyond corals.
Coral Reefs: Battlegrounds for Survival in a Changing Climate
Article link | Phys.org | Phys.org | July 8, 2024
Article explores how coral reef survival depends on complex ecological relationships as rising ocean temperatures and bleaching intensify.
Marine Heatwaves Devastate Red Gorgonians in the Medes Islands
Article link | University of Barcelona | ScienceDaily | June 13, 2024
Study documents severe impacts of a 2022 marine heatwave on red gorgonians in the Mediterranean, highlighting vulnerability of long-lived marine species.
More Than 60% of World's Coral Reefs May Have Bleached in Past Year, NOAA Says
Article link | Gloria Dickie | Reuters | May 16, 2024
NOAA reports that more than 60% of the world's coral reefs may have experienced bleaching-level heat stress during the ongoing global bleaching event.
NOAA Confirms 4th Global Coral Bleaching Event
Article link | NOAA | NOAA | April 15, 2024
NOAA confirms the world's fourth global coral bleaching event, driven by prolonged bleaching-level ocean heat stress across multiple ocean basins.
The Fourth Global Coral Bleaching Event
Article link | International Coral Reef Initiative | ICRI | April 15, 2024
ICRI and NOAA announce the fourth global coral bleaching event, warning that climate-driven ocean heat is affecting reefs across the Atlantic, Pacific, and Indian Oceans.
Coral Reefs Suffer Fourth Global Bleaching Event, NOAA Says
Article link | Gloria Dickie | Reuters | April 15, 2024
Reuters reports NOAA's confirmation of a fourth global coral bleaching event caused by record ocean temperatures and widespread heat stress.
Shy Sea Anemones Are More Likely to Survive Heatwaves
Article link | University of Gothenburg | ScienceDaily | April 7, 2024
Study finds that behavioral differences in sea anemones may affect survival during marine heatwaves, offering insight into species resilience.
Reef-Devouring Predator Survives Coral Bleaching and Feasts on the Survivors
Article link | University of Sydney | Phys.org | October 18, 2023
Research finds juvenile crown-of-thorns starfish can tolerate heat stress that damages corals, potentially worsening reef recovery after bleaching.
Marine Heat Wave Impact on Corals Worse Than Previously Thought
Article link | Phys.org | Phys.org | August 24, 2023
Scientists find that marine heatwaves can cause more severe coral damage than earlier studies suggested, raising concern about reef survival under continued warming.
Bad Break-Up in Warm Waters: Why Marine Sponges Suffer at High Temperatures
Article link | University of Oldenburg | Phys.org | June 17, 2023
Research explains how high temperatures disrupt sponge-microbe partnerships, making marine sponges vulnerable during heatwaves.
Warm Is the New Norm for the Great Barrier Reef—and a Likely El Niño Raises the Stakes
Article link | The Conversation | Phys.org | June 7, 2023
Article explains how warming background ocean temperatures make future El Niño events more dangerous for Great Barrier Reef bleaching.
Indo-Pacific Corals Found to Be More Resilient to Climate Change Than Atlantic Corals
Article link | Penn State | Phys.org | May 3, 2023
Researchers compare coral resilience across ocean basins and examine how warming and bleaching affect different reef systems.
Keppel Corals Show Resilience Following Severe Bleaching
Article link | Australian Institute of Marine Science | Phys.org | March 6, 2023
Researchers find some Great Barrier Reef corals can recover after severe bleaching, but continued warming threatens their long-term resilience.
Coral Reefs in the Eastern Pacific Could Survive Into the 2060s
Article link | University of Miami | Phys.org | February 13, 2023
Study suggests some Eastern Pacific reefs may persist longer than expected, though warming seas and heatwaves remain serious threats.
Palau's Rock Islands Harbor Heat-Resistant Corals
Article link | Newcastle University | ScienceDaily | December 21, 2022
Researchers find heat-resistant corals in Palau's Rock Islands, offering clues to reef survival as ocean warming drives more marine heatwaves.
Coral Reefs Can Adapt in Response to Mild Marine Heatwaves
Article link | University of Technology Sydney | Phys.org | October 27, 2022
Research suggests some corals can adjust after mild marine heatwaves, but repeated or severe warming events may overwhelm adaptive capacity.
Marine Heatwaves Push Coral Reefs Toward Dangerous Limits
Article link | University of Technology Sydney | ScienceDaily | October 27, 2022
Study examines how coral reefs respond to heat stress and what mild heatwave adaptation may mean for future reef survival.
Remote Indian Ocean Reefs Bounce Back Quickly After Bleaching
Article link | Phys.org | Phys.org | March 24, 2022
Researchers report rapid recovery on remote Indian Ocean reefs after bleaching, suggesting isolation and local conditions can influence resilience.
Coral Bleaching Impacts 98% of Great Barrier Reef
Article link | James Cook University | Phys.org | November 4, 2021
Study finds that nearly all Great Barrier Reef corals have experienced bleaching since 1998, showing how repeated marine heatwaves are reshaping reefs.
Global Warming and Recurrent Mass Bleaching of Corals
Article link | Terry P. Hughes et al. | Nature | March 2017
Study shows that recurrent coral bleaching is increasing as global warming raises ocean temperatures and shortens reef recovery time.
Marine Ecosystems, Food Webs, and Biodiversity
World's Oceans Break June Heat Record: EU Monitor
Article link | Phys.org | Phys.org | July 1, 2026
Global sea-surface temperatures reached a record high for June, adding to evidence that ocean warming is intensifying marine heatwaves, climate extremes, and ecosystem stress.
World Oceans Day 2026: Rethinking Our Relationship With the Ocean
Article link | Earth.com | Earth.com | June 8, 2026
Overview explains how ocean warming, marine heatwaves, pollution, overfishing, and biodiversity loss are reshaping humanity's relationship with the sea.
Arctic Ocean Food Chain Is Disrupted as a Key Tipping Point Is Crossed
Article link | Phys.org | Phys.org | May 28, 2026
Study shows that sea-ice loss and warming are shifting Arctic Ocean nutrient cycles, threatening plankton and food webs.
More Than 600,000 Seabirds Killed in Single Marine Heat Wave
Article link | Phys.org | Phys.org | April 23, 2026
Study links a massive seabird die-off to marine heatwave disruption of food webs, showing how ocean heat extremes affect species far beyond coral reefs.
New Study Sheds Light on the Threat of 'Marine Darkwaves' to Ocean Life
Article link | Phys.org | Phys.org | January 2026
Scientists describe marine darkwaves—sudden episodes of underwater darkness—that can combine with warming and heatwave stress to harm marine ecosystems.
Chronic Ocean Heating Fuels 'Staggering' Loss of Marine Life, Study Finds
Article link | The Guardian | The Guardian | February 25, 2026
Study finds that persistent ocean warming is linked to major declines in marine life, with seabed warming and heat stress affecting fish biomass and ecosystem health.
Climate Change Is Accelerating but Nature Is Slowing Down
Article link | University of Zurich | ScienceDaily | February 18, 2026
Research describes how climate change is accelerating ecological disruption while natural systems struggle to adapt quickly enough to warming and extreme events.
Marine Heat Waves Slow the Ocean's Carbon Flow
Article link | Mack Baysinger | Eos | November 3, 2025
Research finds marine heatwaves can alter plankton communities and slow the biological carbon pump, reducing the ocean's ability to move carbon into deeper waters.
How Marine Heatwaves Are Stalling Earth's Carbon Pump
Article link | Earth.com | Earth.com | October 8, 2025
Article explains how Gulf of Alaska heatwaves reshaped plankton communities and disrupted the ocean's carbon transport system.
Ocean Heatwaves Are Breaking Earth's Hidden Climate Engine
Article link | ScienceDaily | ScienceDaily | October 7, 2025
Study shows that marine heatwaves can disrupt food webs and carbon cycling, weakening a major ocean process that helps regulate climate.
Overheating Oceans: Have We Reached a Climate Tipping Point?
Article link | Earth.com | Earth.com | July 27, 2025
Article explains why record marine heatwaves in 2023 raised concerns about a major shift in ocean heat, climate patterns, and ecosystem stability.
The Oceans Are Overheating—and Scientists Say a Climate Tipping Point May Be Near
Article link | ScienceDaily | ScienceDaily | July 26, 2025
Research describes accelerating ocean warming and warns that marine heatwaves are becoming a defining feature of the changing climate system.
The Heatwave That Shattered Ecosystems, Starved Whales and Collapsed Fisheries
Article link | ScienceDaily | ScienceDaily | July 21, 2025
Researchers synthesize evidence from the Pacific marine heatwave known as "the Blob," documenting cascading impacts across marine ecosystems and coastal economies.
Scientists Warn of an Alarming Rise in Marine Heatwaves
Article link | Earth.com | Earth.com | March 4, 2025
Article reports a sharp rise in marine heatwave frequency and warns of escalating damage to coral reefs, kelp forests, fisheries, and food chains.
Ocean Temperatures Broke Heat Records for 450 Straight Days
Article link | Earth.com | Earth.com | January 29, 2025
Article reports that ocean warming rates have accelerated sharply since the 1980s, with record sea-surface temperatures lasting hundreds of days.
Marine Protected Areas Are Not Immune to Ocean Heatwaves
Article link | Earth.com | Earth.com | July 13, 2023
Study finds that marine protected areas can still experience damaging heatwave exposure, showing that conservation must also address climate warming.
Rising Ocean Temperatures Are Sweeping the Seas
Article link | University of California, Santa Barbara | ScienceDaily | July 13, 2023
Researchers show that marine heatwaves are creating prolonged periods of ocean warming that can destabilize protected marine ecosystems.
Tracking Marine Heat Waves
Article link | Saima Sidik | Eos | May 24, 2023
Scientists describe how bottom marine heatwaves can strike continental shelves and disrupt deep marine ecosystems independently from surface heatwaves.
Marine Heatwaves and the Collapse of Marine Ecosystems
Article link | Michael T. Burrows et al. | Science | August 2019
Researchers describe how marine heatwaves can trigger abrupt ecological change and threaten the structure and function of marine ecosystems.
Marine Heatwaves Threaten Global Biodiversity and Ecosystem Services
Article link | Dan A. Smale et al. | Nature Climate Change | March 4, 2019
Researchers show that marine heatwaves have already caused widespread ecological impacts, including species shifts, kelp loss, coral bleaching, and fisheries disruption.
A Global Assessment of Marine Heatwaves and Their Drivers
Article link | Charlotte Laufkötter et al. | Nature Communications | 2020
Study examines how global warming changes marine heatwave characteristics and identifies physical drivers of ocean heat extremes.
The Blob: An Unprecedented Marine Heatwave in the North Pacific
Article link | NOAA Climate.gov | NOAA | 2015
NOAA explains the North Pacific marine heatwave known as "the Blob," which became a key example of how persistent ocean heat can disrupt ecosystems.
Ocean Circulation, El Niño, and Climate Patterns
El Niño Is Underway, Satellite Observations Show
Article link | NASA | Phys.org | June 21, 2026
NASA satellite data show El Niño conditions developing, with warm-water signals in the tropical Pacific that can amplify global heat and marine impacts.
Atlantic and Pacific May Follow Different Rules on Long-Term Ocean Temperature Change
Article link | Florida State University | Phys.org | June 17, 2026
Researchers find that the Atlantic and Pacific may warm according to different ocean-temperature dynamics, improving understanding of long-term sea-surface change and marine heatwave risk.
Super El Niños May Lose Their Punch in a Warming World
Article link | Sayan Tribedi | Phys.org | June 16, 2026
Climate-model research suggests that future extreme El Niño events may affect the atmosphere differently as baseline ocean temperatures rise.
Satellite Data Reveal Southern Ocean Vertical Currents Diving 3,000 Feet Below Surface
Article link | Paul Arnold | Phys.org | June 9, 2026
Satellite observations reveal deep vertical currents in the Southern Ocean, offering insight into how heat, carbon, and nutrients move through a warming ocean.
Atlantic 'Cold Blob' Caused by Weakening Ocean Current System That's Likely Nearing a Tipping Point
Article link | Robert Egan | Phys.org | June 7, 2026
Study links the North Atlantic cold blob to weakening ocean circulation, raising concern about tipping points and shifting ocean heat patterns.
A Very Strong El Niño Is Approaching. Here's What We Can Expect
Article link | Phys.org | Phys.org | June 2026
Explainer describes how a strong El Niño could affect ocean temperatures, marine heatwaves, rainfall, storms, and global climate extremes.
New Relative Niño Index Introduces More Robust Way to Measure El Niño Strength
Article link | Phys.org | Phys.org | June 2026
Researchers propose a climate-adjusted El Niño index that may better measure tropical Pacific heat anomalies in a warming world.
Are We Really Headed for a 'Super' El Niño? What the Science Says
Article link | Alexandra Witze | Nature | May 14, 2026
Nature interviews climate scientists about a possible strong El Niño and its implications for ocean heat, weather extremes, and climate records.
Ocean Eddies Are Amplifying Climate Extremes in Coastal Seas
Article link | Phys.org | Phys.org | April 15, 2026
Research finds that ocean eddies can intensify coastal climate extremes, affecting heat, nutrients, and ecosystem stress in warming seas.
Arabian Sea Sediments Reveal Summer and Winter Monsoon Changes
Article link | Phys.org | Phys.org | April 2026
Marine sediment records help scientists reconstruct ocean-climate changes that influence regional warming, circulation, and ecosystem conditions.
Earth's Energy Budget Is Not in Balance. Should We Be Concerned?
Article link | Université catholique de Louvain | Phys.org | May 31, 2023
Article explains Earth's growing energy imbalance, ocean heat uptake, marine heatwaves, sea-level rise, and climate risks.
Regional Seas, Coasts, and Economies
Coastal and Estuarine Carbon Removal Technique May Backfire When Pushed Too Far
Article link | Hannah Bird | Phys.org | June 27, 2026
Study warns that some coastal carbon-removal approaches could disrupt estuaries if pushed too far, showing how climate solutions must account for warming waters, chemistry, and ecosystem limits.
European Waters Break Climate Records
Article link | Earth.com | Earth.com | June 9, 2026
Article summarizes climate records in Europe, including widespread marine heatwaves affecting regional seas and coastal ecosystems.
Two Decades of Data Show That Climate Change Is Transforming Biscayne Bay
Article link | Diana Udel / University of Miami | Phys.org | June 1, 2026
Long-term data show Biscayne Bay is warming and changing, with implications for coastal ecosystems already stressed by climate change.
Canada's Ocean Economy Is at Risk as Climate Change Hits Ecosystems
Article link | Simon Fraser University | Phys.org | March 31, 2026
Researchers warn that warming oceans, shifting ecosystems, fisheries stress, and climate impacts threaten Canada's ocean economy.
With Average Temperatures Above 21°C, Oceans Approach New Heat Records
Article link | Le Monde | Le Monde | April 3, 2026
Article reports that global ocean surface temperatures approached new records in early 2026, increasing concern about marine heatwaves and biodiversity loss.
How a Marine Heatwave Transformed Life Along the Pacific Coast
Article link | Earth.com | Earth.com | July 23, 2025
Article reviews how the 2014–2016 Pacific marine heatwave reshaped ecosystems from plankton to whales and fisheries.
A Marine Heat Wave in Northwest Australia Is Killing Huge Numbers of Fish
Article link | Phys.org | Phys.org | January 29, 2025
Report describes a large marine heatwave off northwest Australia causing major fish kills and raising concern for ecosystems farther south.
South Florida Estuaries Warming Faster Than Gulf of Mexico, Global Ocean
Article link | University of South Florida | Phys.org | August 7, 2024
Studies find South Florida estuaries are warming faster than the Gulf of Mexico and global ocean, including strong responses to the 2023 marine heatwave.
Researchers Uncover Decadal Climate Linkages Between Western Australia and the Tropical Pacific
Article link | Chinese Academy of Sciences | Phys.org | June 5, 2024
Researchers identify climate connections that help explain increasing marine heatwaves and coral bleaching along Western Australia's coast.
Compound Extreme Events Threaten Marine Ecosystems
Article link | Eos | Eos | January 23, 2024
Study warns that marine heatwaves can combine with low oxygen, acidification, and other stressors to create especially dangerous conditions for marine ecosystems.
Marine Heatwaves Don't Just Hit Coral Reefs. They Can Cause Chaos on the Seafloor
Article link | The Conversation | Phys.org | September 5, 2023
Researchers explain that marine heatwaves can penetrate to the seafloor, threatening fish, kelp beds, sponges, shellfish, and cold-water corals.
Foundational Science, Definitions, and Climate Reports
Ocean Warming and Marine Life
Article link | IPCC | Intergovernmental Panel on Climate Change | 2022
IPCC assessment explains that ocean warming, acidification, deoxygenation, and marine heatwaves are already affecting marine ecosystems and human communities.
Marine Heatwaves: A Silent Threat to Oceans
Article link | IUCN | International Union for Conservation of Nature | 2021
IUCN brief explains what marine heatwaves are, why climate change is making them worse, and how they threaten biodiversity, fisheries, and coastal economies.
Explainer: Marine Heatwaves
Article link | Marine Heatwaves International Working Group | MarineHeatwaves.org | 2021
Scientific explainer describes how marine heatwaves are defined, measured, monitored, and linked to ecological disruption.
The Ocean and Cryosphere in a Changing Climate
Article link | IPCC | Intergovernmental Panel on Climate Change | 2019
IPCC special report summarizes how ocean warming, marine heatwaves, sea-level rise, and ecosystem shifts are transforming oceans and coasts.
Marine Heatwaves: Definition and Ecological Consequences
Article link | Alistair J. Hobday et al. | Nature Communications | 2016
Scientists propose a standard definition for marine heatwaves, helping researchers compare ocean heat extremes and their ecological impacts.
