Oceanography Climate Impact Studies

Tagging whales with drones is transforming marine research—and it’s a powerful example of how AI, robotics, and advanced sensing are accelerating conservation efforts. Fascinating? For decades, studying whales required researchers to approach animals by boat, a process that was expensive, time-consuming, and often limited by weather and ocean conditions. Today, drones are changing the game. Researchers can deploy tags, collect respiratory samples (“whale blow”), measure body condition, and monitor behavior from the air with far less disturbance. Some drone-based photogrammetry systems can measure whale size and body condition with centimeter-level accuracy, providing critical insights into health, pregnancy, nutrition, and population trends. Consider the scale of the challenge: 🐋 Blue whales can reach over 30 meters (100 feet) in length and weigh more than 180 metric tons. 🌊 Many whale species migrate 5,000–20,000 kilometers annually, making long-term monitoring incredibly difficult. 🚢 More than 80% of global trade travels by sea, increasing the importance of understanding interactions between marine life and shipping routes. 📊 AI-powered image analysis can process thousands of aerial images, identifying individual whales, estimating population sizes, and detecting behavioral changes far faster than traditional manual methods. 🌍 The ocean absorbs approximately 25–30% of human-generated CO₂ emissions, making healthy marine ecosystems increasingly important in the fight against climate change. The future is even more exciting. Imagine autonomous drone networks working alongside satellites, underwater acoustic sensors, autonomous surface vessels, and AI models that continuously analyze data streams from across the world’s oceans. Researchers could: ✅ Track migrations in near real time ✅ Detect health issues before populations decline ✅ Reduce ship strikes through predictive routing ✅ Monitor the effects of climate change on feeding grounds ✅ Build digital twins of marine ecosystems for simulation and planning This is where technology becomes more than innovation—it becomes a force multiplier for conservation. The same advances in AI, edge computing, sensors, and autonomous systems that are transforming industries are now helping scientists better understand and protect some of the largest animals ever to live on Earth. Every tag deployed, every image captured, and every AI model trained brings us closer to a future where technology and conservation work hand in hand to protect our oceans for generations to come. #AI #Drones #Whales #MarineBiology #OceanTech #Robotics #Conservation #ClimateChange #MachineLearning #AutonomousSystems #DigitalTransformation #Innovation #Sustainability #WildlifeConservation #BlueEconomy #FutureTech #DataScience #EnvironmentalScience #TechForGood #ResearchAndDevelopment

On 30 June 2026, the global ocean recorded its warmest temperature anomaly ever measured for that date.... Globally. 🌊 This visualisation, based on Copernicus Marine Service data, shows sea surface temperatures across almost the entire ocean are running above the long-term average, with the global anomaly reaching +0.5°C — a record for this time of year, in a dataset stretching back to 1993. Two of the signals I've been tracking closely this year are converging in this single map: 🌡️ The Mediterranean marine heatwave remains firmly in place 🌊 The equatorial Pacific, where developing El Niño conditions are adding further warmth on top of an already-hot ocean 📈 The historical trend line tells that this isn't a single spike, it's the continuation of a climb that has been steepening for years The ocean is the planet's great heat regulator, absorbing 90% of the excess energy trapped by greenhouse gases. It has spared land temperatures from rising even faster. But it comes at a cost: warmer waters intensify storms, disrupt marine ecosystems and fisheries, and prime the atmosphere for more extreme, more humid heat on land. 🌡️ None of this would be visible without sustained, near-real-time ocean observation. Copernicus Marine and Climate Change Services are what let us see a record forming as it happens, rather than discovering it in hindsight — turning raw data into the lead time that preparedness for extreme weather depends on. 🛰️ 🛰️ Data: European Union, Copernicus Marine Service & Copernicus Climate Change Service

We are conducting a massive uncontrolled experiment on the oceans which produce half of the Earth’s oxygen (https://lnkd.in/g2yA7nYU.). In tropical oceans, there is a significant temperature difference between the surface layer which is warm and the bottom layer which is cold. The warm layer stays at the top while the cold layer stays at the bottom. This is called stratification of the water column. Because nutrients are found in the bottom layer (as marine organisms die and sink to the bottom), stratification means less mixing and hence less nutrients brought up from deep. This is why when you look at the chlorophyll map of the oceans (as a proxy for phytoplankton count), the highest content is near the polar regions where the difference between surface and deep ocean temperatures is minimal (ie more mixing of nutrients). This is why whales migrate to polar regions to feed on krill which in turn feed on phytoplankton. Tropical oceans tend to be clear and are characterised by reduced marine life. The profusion of life in tropical coral reefs are actually oases in a desert. Fun fact: the separation between the warm surface layer and cold deep layer is called the thermocline. Submarines hide below the thermocline to minimise detection by sonar. "Climate change is causing marine heat waves to become more common, leading to increased stratification of the water column. This in turn causes hypoxic events and reduced mixing between the surface layer and the deep ocean. Food webs rely on nutrients brought up by this mixing, and marine heat waves can disrupt this process, impacting zooplankton populations through bottom-up interactions with their main food source, phytoplankton." https://lnkd.in/gP8M3Win "“The ocean heatwave is an immediate threat to some marine life,” said Professor Piers Forster of the International Centre for Climate at Britain’s University of Leeds. “We are already seeing coral bleaching in Florida as a direct result and I expect more impacts will surface.” The overheating of the oceans is predicted to have other effects on marine plant and animal life too, including on the migration of certain species and the spread of invasive species. This could threaten fish stocks and thus undermine food security in certain parts of the globe. Warmer oceans are also less capable of absorbing carbon dioxide (CO2), reinforcing the vicious cycle of global warming." https://lnkd.in/gvCY5XWS

5 ways parametric sub-bottom profilers transformed dredging. Early 2000s brought a revolution to marine site investigation: Parametric sub-bottom profilers like the SES-96 system changed how we see beneath the seabed. Before these tools, marine investigation was essentially educated guessing between borehole locations and joining the dots. 1. Real-time subsurface imaging Instead of drilling blind every 100 meters, like throwing darts on a dartboard, you could see continuous layers, boundaries, and objects up to 50 meters deep. No more "hope there's no rock where we're going to be dredging." 2. Targeted borehole placement Stopped random drilling and started strategic sampling. Put boreholes exactly where they'd provide useful data, not where they were convenient. 3. Buried object detection Found pipelines, cables, debris, and archaeological features before dredging equipment hit them. Saved many projects from expensive surprises and delays. 4. Accurate volume calculations Mapped sand reserves sitting on lateritic clay layers. Identified optimal dredging depths for breakwater foundations. Turned volume estimates from guesses into measurements. 5. Predictive operations Moved from reactive firefighting to proactive planning. Problems identified during investigation, not during construction. Claims based on "unforeseen conditions" became much harder to justify. The transformation was immediate: Before: Desktop studies and wishful thinking. After: Real data showing actual subsurface conditions. Now it's standard equipment. What seemed revolutionary 20 years ago is basic kit today. Technology is advancing in strides and newer techniques build on this knowledge base ‘Meten is weten’ or measurement is knowledge as the dutch say. But the fundamental issue remains: We need to stop gambling with what's underground. And start seeing it.

The latest State of the Cryosphere Report presents deeply concerning evidence of accelerating ice loss and its cascading impacts on global water resources and climate systems. Let me highlight several critical findings: We are witnessing unprecedented rates of cryosphere decline. Mountain glaciers globally set record losses in 2023-2024, with some regions like Sweden showing the highest melt in 80 years of observations. The Arctic is warming 3-4 times faster than the global average, while Antarctic sea ice reached historic lows for three consecutive years. These losses have severe implications for water security. Over 2 billion people depend on glacier-fed rivers for water, agriculture and hydropower. Many glacier-dependent regions have already passed "peak water" - the point where meltwater supply begins declining. The Hindu Kush Himalaya region saw record low snowfall this winter, threatening water supplies across South Asia. The global impacts extend far beyond mountain and polar regions. Sea level rise has doubled in the last 30 years. If current emissions continue, we risk triggering irreversible melt of parts of Antarctica and Greenland that could raise seas by multiple meters over centuries. Ocean circulation patterns are showing concerning changes, with potential disruption of critical systems like the Atlantic Meridional Overturning Circulation. That means every fraction of a degree matters!! At 1.5°C warming, we can still preserve significant mountain glacier ice and limit sea level rise to more manageable levels. But current policies put us on track for over 2°C warming, which would lead to catastrophic and irreversible ice loss. We face a critical choice. Strong emissions reductions this decade could still prevent extreme loss and damage. But the window for action is closing rapidly. We must strengthen climate commitments in 2025 NDCs to credibly limit warming to 1.5°C through: - At least 40% emissions cuts by 2030 - Net zero emissions by 2050 - Increased support for adaptation in vulnerable regions The cryosphere cannot wait. We cannot negotiate with the melting point of ice. The decisions we make this decade will determine the future of Earth's ice and snow - and the billions who depend on them. Green Climate Fund, Asian Development Bank (ADB), #ClimateAction #ClimateEmergency, #GlobalWarming, #NetZero2050, #GlacierMelt #SeaLevelRise, #WaterSecurity, #PolarIce #ArcticAmplification

The compounding effects of climate change - when tropical cyclones meet marine heatwaves There is uncertainty about how climate change will impact the frequency of tropical cyclones. On the other hand, rapid intensification (when a storm strengthens considerably in a short period of time before making a landfall) has become more common since the 1980s and is projected to become even more frequent in the future with continued warming. Meanwhile, as oceans absorb about 90% of the human-driven heat trapped in Earth's system and that sometimes, that heat gets more difficult to diffuse, marine heatwaves become more frequent and more pronounced. Now, when more frequent rapidly intensifying tropical cyclones meet more frequent and more intense marine heatwaves, the landfall is more brutal (maximum sustained wind speed ahead of landfall and rate of rainfall at landfall). And, when controlling for levels of coastal development, storms that pass through a marine heatwave during their rapid intensification cause 93% higher economic damages than storms that do not. So yes, climate change may not increase the overall frequency of tropical cyclones but (unless if tropical cyclones are made less likely by maritime heatwaves which does not seem to be the case) each of them is more likely to be more intense and cause more damages. 🔗 Carbon Brief reporting on an academic study published last week https://lnkd.in/esVZrYMY

What if our oceans held the secrets to some of our biggest environmental challenges? Sailing across the vast oceans, gathering data without a crew on board—that’s exactly what Saildrone is doing. Imagine a sailboat, its hull covered in solar panels, gliding across the water, powered by the wind and the sun, completely fossil-fuel-free. Saildrone, a company based in San Diego, has reimagined ocean exploration, using autonomous, wind-powered drones to collect environmental data from some of the most remote places on Earth. One of Saildrone’s biggest breakthroughs? In 2019, a Saildrone made history by becoming the first autonomous vehicle to circumnavigate Antarctica, gathering data on the Southern Ocean’s climate and ecosystem. This data, later analyzed on Amazon Web Services (AWS), offers insights into fish stocks, shark migration, and the shifting patterns of our oceans—critical knowledge for sustainable fishery management and marine conservation. The company’s Data Explorer tool even allows us to visualize this data: each dot on the map represents a data point, and darker colors show where information is most densely collected. It’s like a window into our oceans' health. In a world where 80% of the ocean remains unmapped and unexplored, initiatives like Saildrone remind us that technology can be a partner in conservation. As future business leaders and community members, seeing projects like Saildrone inspires us to think beyond traditional boundaries and ask how we, too, can contribute to a sustainable future. This isn’t just data—it’s a call to action for anyone who wants to protect and understand our planet. Would you answer that call? #Saildrone #Sustainability #ClimateAction #OceanExploration   #EnvironmentalData

How warming seas are transforming the world’s reefs Coral reefs are among the most productive ecosystems on Earth, built slowly by animals that resemble plants. Each coral polyp hosts microscopic algae that convert sunlight into energy. When ocean temperatures rise, this partnership breaks down. The coral expels the algae, loses its color, and turns white — a process known as bleaching. The coral is still alive but weakened. If stressful conditions persist, many die. Mass bleaching events were once rare. Over the past four decades they have become increasingly frequent and severe, driven by warming seas. A rise of just 1–2°C above typical summer temperatures can trigger bleaching across entire regions. A global analysis of the 3rd Global Coral Bleaching Event (2014–2017) provides a stark benchmark. Marine heatwaves affected reefs worldwide for three years. Researchers estimate that more than half of the world’s reefs experienced moderate or worse bleaching, and about 15% suffered significant mortality. Repeated heatwaves left little time for recovery, compounding long-term damage. Bleaching is a breakdown of symbiosis. Corals rely on algae for up to 90% of their energy. When heat disrupts photosynthesis, the algae produce harmful molecules, prompting expulsion. Deprived of food, corals enter physiological stress. Some recover; others succumb to starvation, disease, or algal overgrowth. Recovery, if it occurs, can take decades. Mass bleaching often follows large-scale climate patterns such as El Niño. Not all reefs suffer equally. Local factors — depth, currents, water clarity, and past exposure to temperature swings — influence resilience. Some reefs act as temporary refuges, while others are highly vulnerable. Future projections suggest worsening conditions. Many reefs may experience longer bleaching seasons and more frequent heat stress. These projections are already materializing: a 4th Global Coral Bleaching Event began in 2023, affecting multiple ocean basins. Bleaching is only one pressure among many. Reefs also face ocean acidification, overfishing, pollution, and physical destruction from mining, dredging, and development. These stresses reduce recovery after heat events. Reefs matter beyond biodiversity. They support fisheries, tourism, and coastal protection for hundreds of millions of people. By dissipating wave energy, they reduce erosion and storm damage. If reefs decline, shorelines become more exposed. Some corals show resilience, particularly in variable environments, and scientists are exploring restoration and experimental interventions. Yet most experts agree these efforts can only buy time locally. The long-term outlook depends largely on global warming. Coral bleaching is a recurring stress reshaping reefs across the tropics, leaving a narrowing margin for survival in a rapidly changing ocean. 🪸 Full piece: https://mongabay.cc/E12pAf 🔬The paper: https://mongabay.cc/xIe757

Less than a third of our oceans have been mapped, yet they hold the key to some of our biggest global challenges, from climate change to energy security. That's why I find the work of XOCEAN so critical. By using uncrewed vessels powered by hybrid energy systems, they can gather critical seabed data continuously, at a fraction of the cost of alternative solutions and with dramatically lower emissions. By building on AWS, the terabytes of data they collect every day can be processed in near real time by teams across the world, with AI helping to identify and map seabed features instantly. The impact is already significant: XOCEAN's seafloor mapping has supported the development of nearly 50GW of offshore wind projects, with ambitions to reach 100GW this decade. It's a powerful example of how technology can unlock entirely new ways of working - while accelerating the energy transition and reducing environmental impact. Hear from Charlotte Beechey below. #WorldOceanDay

In my recent efforts of expanding research efforts here at Six Senses Kanuhura, I have been working on AI-driven automated detection of fish to measure fish abundance on our surrounding seagrass meadows (a strong indicator of ecosystem health). Early efforts show promising signs of detection, even with fish that are seemingly inconspicuous in the seagrass! This could prove to be a hugely valuable tool that saves hours of time flicking through RUV (Remote Underwater Video) footage, whilst also removing an element of experimenter bias and compiling crucial data to support the protection of these misunderstood ecosystems in the Maldives. For context, I am using a pre-trained model, namely the MegaFishDetector that runs through YOLOv5. I know that for many Marine Biologists working in resorts they can find it hard to dedicate time (or even find the motivation) to analyse data, well these days we have the technology at our fingertips to make this often arduous task much easier, and also kinda fun- think outside the box and be inspired by the possibilities!