The water exceeds 32 ºC and the forecasts are not good

Summer advances and the classic refreshing feeling when entering the waters of the Mediterranean It is something that little by little we no longer feel the same way. The reason is none other than that year after year the water continues to warm up and exceed record numbers, which not only makes us feel less cool when bathing, but is also causing alterations in our climate, reaching the point that it could even exceed the temperatures of the Caribbean Sea during this summer. Setting record. The data recorded on the Spanish coasts They are especially forceful, and here the oceanographic buoys are our best ally by serving as a source of these measurements and which have been recording exceptional figures. To put ourselves in context of what is happening in our waters, we can look at the Bay of Pollença in Mallorca, where one of the buoys detected a water surface temperature of 32.1 ºC. The reason. Here the main culprit is undoubtedly the constant train of heat waves that is leaving the water of the western and central Mediterranean above 30 ºC in many of its sectors. But in addition to affecting the marine ecosystem, these extreme temperatures on the ocean surface contribute a greater amount of water vapor to the air, which increases relative humidity to levels between 80% and 90% and destroys thermal comfort in the form of torrid nights. And it is not something specific, but rather it is an inertia that we are moving towards, as confirmed by the Copernicus Marine Service, what points that during the first half of 2026 the Mediterranean experienced an average surface temperature of 18.07 ºC. This makes the semester between January and June the third warmest ever recorded, only surpassed by 2024 and 2025, and the same European organization points out that marine heat waves have affected about 82% of the global ocean, consolidating the Mediterranean as one of the highest risk hotspots worldwide. From space. Satellites have also detected these anomalies that confirm in another way the records that our Mediterranean is facing. Specifically, the ESA recorded on June 29, 2026 that the Mediterranean suffered anomalies in its surface temperature of up to 8 °C above the average for the period 1991-2020. If we are more specific, the wildest temperature increases were located off southern France and around the islands of Corsica and Sardinia, as well as on the Italian peninsula. Globally, Copernicus detected that on June 30 the global sea surface temperature anomaly was +0.5 °C, the highest value ever recorded for that calendar date. All this goes hand in hand with a suffocating atmospheric context, since the Copernicus C3S service documented that June 2026 was the second hottest June globally, reaching an average temperature of 16.54 °C, which is 1.39 °C above the pre-industrial level. The Mediterranean takes the worst part. The average temperature in the Mediterranean area has already risen approximately 1.5 °C since the pre-industrial era and this warming is progressing at a rate 20% faster than the global average. These figures are very serious, since future projections require urgent action, since it is expected that the Mediterranean could warm up to 5.6 ºC by the year 2100, varying depending on the final volume of our emissions. In Xataka | AEMET says it bluntly: in the Mediterranean it no longer makes sense to talk about a “tropical night” because almost all of them are.

One of the most advanced yachts in the world keeps its biggest secret below deck: cryogenic tanks at -253 ºC

At first glance, Breakthrough It could seem like another superyacht destined to attract attention due to its dimensions. It measures 118.80 meterswas built by Feadship and is part of that category of boats in which each meter is usually accompanied by swimming pools, terraces and private spaces. The difference is that here the real claim is not on the external postcard. The point that makes this project something exceptional is below deck: a cryogenic system designed to bring liquid hydrogen at -253 ºC in a luxury vessel. The project was not born as Breakthrough, but as Project 821, the name with which Feadship unveiled it at its Amsterdam shipyard in 2024. The Dutch shipyard defines it as the first superyacht with a hydrogen fuel cell system, a statement that should always be attributed to the company to maintain rigor. The idea was not only to build another large ship, but to explore how far a non-combustion electricity generation technology could be taken within a platform of more than 100 meters. The “secret” of the yacht is below deck Carrying liquid hydrogen on a yacht is not simply about changing one tank for another. Feadship details that Project 821 incorporates a 92 m³ cryogenic tank for about four tons of hydrogen, integrated into a dedicated and very isolated room. The problem is that liquid hydrogen takes up much more space than a conventional fuel when the available energy is calculated: the shipyard speaks of between eight and ten times more volume compared to a non-fossil diesel equivalent. That hydrogen does not burn like a conventional fuel. It passes through 16 PowerCell systems that function like small power plants: They combine hydrogen and oxygen to generate electricity, and the exhaust is water vapor. The resulting energy powers an architecture integrated by ABB, with direct current electrical grid, intelligent energy management and Azipod thrusters. This means that hydrogen does not directly move the yacht, but rather produces the electricity that allows it to move and keep its on-board consumption active. As we can see, its most ambitious part is designed not to be seen, but the boat does not give up showing itself as a large superyacht. Feadship highlights that it incorporates more hull openings than any other Feadship to date, with 14 balconies, seven platforms and nine hull doors. The Edmiston listing completes the picture with a swimming pool, three hot tubs, Nemo lounge, spa, cinema, hospital, touch-and-go helipad and three elevators. At this point, the question is obvious: Does Breakthrough always run on hydrogen? No. Feadship does not present it as a yacht capable of doing everything with its fuel cells, but as a hybrid boat that uses that energy in specific scenarios. The shipyard talks about a week of silent operation at anchor or sailing at 10 knots in protected areas without fossil fuels. It is an interesting figure, but it also marks the limit: hydrogen serves to reduce noise and local emissions in certain uses, not to completely replace the conventional system. The reason is physical, not commercial. Even on a 118.80 meter yacht, there is not enough space to carry the liquid hydrogen necessary for a complete ocean crossing. That’s why Breakthrough combines its fuel cells with MTU generators capable of running on HVO, a second-generation biofuel, within a hybrid architecture. The project was also an exercise in integration. Feadship maintains that there were no specific class, Flag State or IMO regulations for hydrogen storage and fuel cell systems on such a project, so it worked with Lloyd’s Register to develop specific equipment, protocols and safety procedures. ABB completes that part from the electrical side: it integrated the 3 MW system with the Onboard DC Grid network, energy management and Azipod thrusters. The other big challenge is outside the boat. It is one thing to design a yacht capable of using liquid hydrogen and quite another to create the infrastructure to safely supply it. Air Products announced in 2025 which had supplied Breakthrough with liquid hydrogen in what was the first bunkering of this type in the Netherlands. The data is important because it remembers that the technology does not depend only on the tank, fuel cells or propulsion: it also needs ports prepared to handle fuel at extreme temperatures. In Xataka The future of war at sea is hybrid: Navantia is clear about how to win it with its new ship for the United Kingdom Breakthrough demonstrates that a technology that is difficult to store, regulate, integrate and supply can leave the laboratory and enter a real ship. It may remain an exception for years, available to very few. Still, its value lies in having brought one of the most complex conversations in maritime energy to a hull that is already sailing. Images | Feadship In Xataka | Norway gives the green light to the construction of the world’s first tunnel for ships: a colossal engineering feat that has been waiting for 150 years (function() { window._JS_MODULES = window._JS_MODULES || {}; var headElement = document.getElementsByTagName(‘head’)(0); if (_JS_MODULES.instagram) { var instagramScript = document.createElement(‘script’); instagramScript.src=”https://platform.instagram.com/en_US/embeds.js”; instagramScript.async = true; instagramScript.defer = true; headElement.appendChild(instagramScript); – The news One of the most advanced yachts in the world keeps its biggest secret below deck: cryogenic tanks at -253 ºC was originally published in Xataka by Javier Marquez .

An end of February with 20 ºC, haze and full reservoirs is not "good time": it is the sign of a completely misplaced meteorology

If we take a brief look at how February 2026 is ending (the sun, the 20 degrees, the haze, the candy-like reservoirs), it is difficult not to say to ourselves: “Finally some good weather!” Above all, if we take into account that after these days of calm, a front will enter from the northwest, inaugurating meteorological spring in style. And yet, it is inevitable to raise an eyebrow. But let’s start at the beginning…. The arrival of a front from the northwest is not only synonymous with rain, but with a progressive drop in temperature and the return of the frosts after disappearing for a few days. Of course, the southern half is not going to notice it too much. Otherwise, the haze has been there for days causing problems (and locust rains in the Canary Islands) and, in the background, a DANA starts to give signs about what will approach Andalusia on Monday or Tuesday. In Xataka After the rains, Spain faces the same problem as a year ago: a devastating fire season Where is spring? If that’s the question, the answer is that it’s already here. Not just because this weekend ‘astronomic spring’ beginsbut because the meteorological dynamics have made everything accelerate in a strange way. Neither the processions deceiveneither allergies disappear. And that means the trap is already here. Because, although the reservoirs are full, they are not filled homogeneously. While Spain is at 83%, there are many basins with many problems (the Segura is at 47.2% and that of Júcar at 63.7%). And, starting in March, both evaporative demandas consumption (agricultural irrigation, urban peaks, tourism) skyrocket. Therefore, with the history of poor management that we have in the country and this feeling of “false security” that is spreading, having the reservoirs full unfortunately means nothing. Absolutely nothing. {“videoId”:”x7zoac4″,”autoplay”:false,”title”:”Climate change and the influence of humans”, “tag”:”Earth”, “duration”:”304″} More problems, many problems. To all this we must add that we do not know what is going to happen from now on. We will never know, it is true: but this precipitation scenario is so new and unusual that all scenarios are open. The only thing that is clear is that, if we do not start managing the forest, forest fires are going to mark the country as soon as the heat arrives. The new normal? That is the second big question because the pan-European studies agree that we are going towards an earlier start of spring compared to previous decades. But no one is very clear if this is an anomaly or a first step. What is clear is that, no matter what happens, this is especially noticeable here in the south. And that is the first big question: Are we prepared? Are we willing to do what we have to do? Image |AEMET In Xataka |In China they are deploying metal firefighters. Maybe they are more useful than robo-waiters (function() { window._JS_MODULES = window._JS_MODULES || {}; var headElement = document.getElementsByTagName(‘head’)(0); if (_JS_MODULES.instagram) { var instagramScript = document.createElement(‘script’); instagramScript.src=”https://platform.instagram.com/en_US/embeds.js”; instagramScript.async = true; instagramScript.defer = true; headElement.appendChild(instagramScript); – The news An end of February with 20 ºC, haze and full reservoirs is not “good weather”: it is the sign of a completely misplaced meteorology was originally published in Xataka by Javier Jimenez .

prevent plasma at 150 million ºC to destroy the reactor

The adjective “titanic” fits as a glove if our intention is to describe the reactor of nuclear fusion experimental ITER (International Thermonuclear Experctor reactor), The machine that an international consortium led by Europe He is building in the French town of Cadarache. This ingenuity is titanic for its dimensions. Also by The size of the challenges that raises. Even for its ambition. Inside His huge vacuum chamber 29 x 29 meters stainless steel, with a weight of 3,850 tons and a volume of 16,000 m³ an extremely powerful magnetic field a gas that is at a temperature of at least 150 million degrees Celsius. It is necessary that this plasma reaches this temperature because in these conditions the deuterium and tritium nuclei that contains acquire the kinetic energy they need to overcome their natural electrical repulsion. Almost without realizing we have repaired in one of the great challenges that the nuclear fusion entails: it is necessary that the plasma reaches that extreme temperature because on the earth we do not have the intense gravitational field that helps the stars to keep on “the nuclear oven”. And less pressure implies more temperature if our purpose is to recreate the necessary conditions so that the fusion reactions between the deuterium and tritium nuclei take place. To monitor the temperature, a lot has needed to develop a lot of technology The most exposed components not only at the extreme temperature of the plasma, but also to the action of high energy neutrons that it is not possible to confine inside the magnetic field are Tungsten shields that cover the inner mantle of the vacuum chamber and the diving. These components must withstand the bombardment of plasma high energy neutrons, transforming their kinetic heat into heat. To release this thermal energy and refrigerate the diving is responsible for the water that circulates inside. The diving is responsible for purifying plasma, allowing the extraction of the ashes and impurities resulting from the nuclear fusion reaction The tungsten has been chosen to put the shields exposed to plasma because this is the metal that has the highest melting point: nothing less than 3,422 degrees Celsius. In addition, the diving is responsible for purifying plasma, allowing The extraction of ashes and impurities resulting from the nuclear fusion reaction and plasma interaction with the most exposed layer of the mantle. In any case during the reactor operation, it is necessary to monitor the temperature that the components most exposed to the plasma action reaches. If the tungsten shields, the diving or any other component of the vacuum chamber exceeds its maximum temperature threshold could be irremediably damaged. And changing one of these pieces in a 23,000 tons machine is not at all pathered bread. Fortunately, engineers who participate in Iter have resolved this challenge. In the cover photography of this article we can see the machine used to carry out the thermal cycles tests to which the prototype of a mirror has been subjected to the National Institute of Aerospace Technique of Spain, which is one of the research institutions that have participated in the project. And is that precisely to measure the temperature of the components most exposed to the plasma, the engineers of Iter will use A great angle vision system which uses several mirrors manufactured with great precision to collect the visible and infrared light from the diversion and the main wall of the camera. This architecture will allow to measure the temperature of all surfaces in real time, so that the reactor operators can identify if a component is overheat and prevent damage in time. This system brings together no less than 15 independent lines of vision that will be housed in four different locations of the vacuum chamber with the purpose of covering 80% of the internal surfaces. Spectacular. Image | Fusion for Energy More information | Fusion for Energy In Xataka | China is unstoppable in nuclear fusion: the construction of its own iter is aimed at beating all records

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