heat

There is already a date for the last flight of the Megacohete Starship as we know it: v3, heat what you go out

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Spacex is ready to move on to the next chapter. Elon Musk’s company has announced the eleventh date Starship test flight: The last launch of the current version of the rocket, which will give way to a new iteration much more powerful. Next Monday, October 13, it could be the day we see the Starship V2 furrow the heavens for the last time. Starship’s 11 flight is here. As Ha confirmed Spacexthe launch window will open at 18:15 CT (01:15 in the morning of Tuesday 14 during Spanish peninsular schedule). As usual, the company will broadcast the live flight from Starbase through its website and its X profile, starting the broadcast about 30 minutes before takeoff. This eleventh flight will not be a simple repetition of the previous one (The first successful after a failure streak). In addition to serving as a final brooch for the second version of Starship, it will make a test bench for technologies that will be implemented in the expected V3. Spacex plans to bring both the Super Heavy propeller and the Starship ship with a series of experiments designed to collect data for future releases. A goodbye in style. Flight 11 will have as its protagonist the Super Heavy 15 propeller, which had already blown successfully during flight 8. 24 of its 33 engines will take off for the second … and last time. For this launch, the Super Heavy will try a new configuration in the landing maneuver. Instead of the three usual raptor engines, it will turn on five during its final phase, which will be the standard configuration in the Super Heavy V3 for a matter of redundancy. But the objective is not to recover it for the second time with the arms of the tower, but simulate a soft ametering about the Gulf of Mexico to study the dynamics of the vehicle during the complex transitions of off and ignition of landing engines. Another starship to the limit. The Starship ship has an agenda similar to that of the previous flight. On its suborbital trip, it will deploy eight Starlink satellite simulators and turn one of its engines again in the emptiness of the space, practicing for future orbital insertion maneuvers. Perhaps the most striking is the stress test to which its thermal shield will be submitted. Spacex has deliberately retired several ceramic tiles, including some critical areas that lack a secondary protection layer, to see how they behave during the reentry. The final trajectory will include a banqueo of the ship to imitate the approach that the future Starship will make when returning to the launch base. The shocking, if everything goes as planned, will be again in the Indian Ocean, in broad daylight. The generational jump V2 to V3. As he points out Next Spaceflightthis flight will be the last one for Starship version 2 and for the current Starbase launch platform configuration. Spacex prepares to welcome the Starship V3. The differences between versions are significant. While the V2, with its 123 meters high, can put about 35 tons in low orbit, the V3 will grow slightly to 124.4 meters, firing its useful load capacity up to 100 tons. The thrust at the time of takeoff will also increase from the current 74,400 kilonewtons to more than 80,800 kN. A giant jump that will allow Spacex to display its new generation Starlink network, and then focus on the ultimate goal of getting to Mars. Image | Spacex In Xataka | The European space agency wants its own mini-starship. And just given 40 million to an air to design it

If we want to know how climate change will affect the Pyrenees, you should not look at heat or level. You have to study the caves

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Sometimes we have already talked about the threat that climate change supposes for the Pyrenees, for their ecological balance and for one of the key elements in the economy of the region, skiing. The mountainous regions are vulnerable areas in the face of changes in the weather, but to discover how we do not have to look at their snow, but in their stones. 16,500 years. A new study He has studied The evolution of temperatures in the surroundings of the Pyrenees during the last 16,500 years. The study allows us to establish a correspondence between the evolution of temperatures on this natural border of the Iberian Peninsula and the evolution of the climate in other regions of the world. Almost seven degrees. One of the details emphasized by the study responsible for the study is a sharp change in the temperature of the region registered about 14,600 years: an increase of about 6.7º Celsius (with a margin of error of about 2.8º) in the temperature of the mountainous environment. This increase in temperatures corresponds to a change in the climate of the northern hemisphere that occurred during the same era and has a counterpoint: a decrease of more than six degrees occurred almost two millennia later, about 12,800 years ago, during the event known as Younger Dryastowards the end of the last glacier period. This increase in temperatures corresponds to a change in the climate of the northern hemisphere that occurred during the same era and has a counterpoint: a decrease of more than six degrees that occurred almost two millennia later, about 12,800 years ago, during the event known as Younger Dryas, towards the end of the last glacier period. Analyzing stalagmites. The study was conducted by applying A new technique It allows to extract new climatic data from the incursions of water trapped in stalagmites, the mineral deposits that are formed in numerous tests, similar to the stalactites but whose growth occurs from the bottom up. The analysis was carried out in two caves of Ostolo and Mendukilo, in the north of Navarra. According to The team stands out Responsible for the study, the new analysis allows us to “not only identify the qualitative temperature changes of the last 16,500 years, but also to offer quantitative numbers of these variations with high chronological precision.” The details of the study have been published In an article In the magazine Climate of the past. Learn for the future. The new study is proof that our environment responds “quickly and synchronized” to changes in the global climate and also does so in relatively short time scales. This can help us to prevent the local impacts of future changes in the weather with greater precision, something of unique importance in an environment already vulnerable to these alterations. “Know how the climate in the past It helps us to better understand what can happen in the future in the face of similar disturbances. So that the future predictions of the climatic models are as robust as possible need data from the past to understand how the climate has worked in the face of phenomena such as the thermhaline circulation stop or previous increases in CO2 ”, stood out in a press release Ana Moreno, co -author of the study. In Xataka | The Pyrenees have become a huge weather laboratory: torrential rains have multiplied by four in Spain Image |

Heat was always the enemy of solar energy. A new study says it will be your best ally

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For decades, heat has been considered the Achilles heel of solar energy. When the sun squeezes and the temperature rises, the solar panels They begin to lose efficiency. In sunny places, from Madrid to Sydney, the paradox is known: a lot of sun to achieve a lot of energy, but also a lot of heat that plays against. However, where some see problems, a new study has found a possible solution. An unexpected ally. A study by the University of Laughborough, Posted in The Journal of Chemical Physicsturn this logic. Researchers have tried some photoelectrochimic flow cells (PEC), an emerging technology that captures light and stores it. The most striking thing about this research is that the more heat they receive, the faster they store energy. The team has even identified an “optimal point” around 45 ° C, where performance reaches its maximum before stabilizing. More in depth. But to understand the importance of this finding, it should be remembered why heat is a problem in conventional photovoltaic panels. The increase in temperature causes an increase in internal electrical resistance. This means that electrons lose energy in the form of heat instead of contributing to electric current, which reduces voltage and efficiency. As we have explained in Xatakafor each additional degree above 25 ºC, the plates lose between 0.05 % and 0.34 % yield, which can translate into falls from 10 to 25 % in very hot days. Instead, PEC cells behave totally the other way around: heat energizes liquid electrolyte, accelerating the ion movement. In this way, internal conductivity is improved and reduces losses, achieving a faster and more efficient load. The benefit of heat. The project led by the University of Laughborough by not needing active refrigeration systems, installation and maintenance costs are reduced. For their part, the most benefited regions would be those with abundant sun and high temperatures. As Dr. Bae has highlighted in Interesting Engineering: “This revolutionizes popular belief and gives us a new way of designing solar storage systems that prosper in heat conditions.” Other ways. Beyond the PEC cells, there are also initiatives that seek to take advantage of heat in solar energy. The Australian startup Coolsheet has designed a passive water cooling system that is installed in the rear of the solar panels. This reduces the temperature of the plate and, at the same time, water is heated that can be used in industrial or domestic processes. As we have explained in Xatakaevery 10 ºC less on the plate can translate into an increase of 4 % in electrical efficiency. From enemy to ally. Solar energy crosses an intense innovation phase. From technologies such as PECs, which make heat into an ally, to hybrid solutions such as Coolsheet, which reuse leftover heat, the future seems to get away from the traditional vision that heat is a problem to fight. What is clear is that, As the University of Laughborough concludeswe are one step closer to a scenario in which the sun not only generates electricity, but also enhance the efficiency and reliability of our energy systems. Image | Freepik Xataka | The window that does not seem solar panel, but is: China seeks that each glass facade produces clean energy

The effect of heat on our heart rate when playing in summer

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It is the summer stamp: go running or riding by bike and, a few minutes later, the pulsometer is triggered to figures that do not correspond to the effort. And it’s not a strange thing to see. It is the body that is trying to respond to a series of stimuli such as heat and exercise, and understanding its physiology is important for Do not turn sports into a health risk. Exercising in summer is a great challenge. In this situation the body is forced to respond to two specific demands. On the one hand, Muscles in action need a lot of energy in the form of ATP To contract. However, this is an inefficient process, since It only takes advantage of between 20 and 25% of the ‘produced’ energy releasing the remaining 80% in the form of heat. This energy in the case of not dissipating it correctly can raise internal body temperature by 1 ºC every 5-10 minutes. How to avoid it. On the other hand, to avoid precisely that lethal overheating, the body thermoregulatory center located in the hypothalamus, Activate powerful cooling mechanisms. One of them is to pump huge volumes of hot blood from the body nucleus to the skin, causing it to be red by that large amount of blood that is going through the surface of the body. This double duty is the fundamental reason why the pulse shoots and becomes the most sensitive and critical indicator of the stress to which the body is subjected The organism has to compensate. These two situations cannot be carried out in parallel, but A balance must be achieved. And it is that when the system is taken to the limit by the intensity of the exercise and the severity of heat, something has to yield. Or blood flow is reduced to the muscles, limiting the ability to maintain rhythm, or the flow to the skin is committed, limiting heat dissipation and increasing body temperature to dangerous limits. Understanding this internal negotiation is key to understand why training in summer is much more than a simple matter of willpower. The skin becomes a giant radiator. The first and most powerful response of the body to the increase in skin temperature and body nucleus It is body vasodilation. Controlled by the ‘thermostat’ of the body, the preoptic area of ​​the anterior hypothalamus, this mechanism causes the blood vessels close to the skin to widen and make it become a refrigerator. Under resting conditions and neutral temperature, the cutaneous blood flow is just about 300 ml/min. However, during an intense exercise in a hot environment, this flow It can shoot until reaching 7 or 8 liters per minute. Something that also represents around 50 and 70% of all cardiac output. And this is a simple deviation of resources with the objective of dissipating heat by convection and radiation. Although it is not free. It has an important cardiovascular cost. The heart accelerates to compensate. The fact of opening the ‘pipes’ that lead the blood to the skin causes the heart to have to activate an important compensation mechanism so that the organs remain perfused. We talk about heart rate, which will be increased. The objective is to maintain cardiac output, so that blood pressure is stabilized despite the low peripheral resistance due to vasodilation. A crucial aspect of this process is speed. The initial increase in heart rate is an incredibly fast neural reflex, triggered by Thermal skin receptors. This response often precedes any significant increase in central body temperature. This shows that the body not only reacts to heat, but anticipates it, preparing the cardiovascular system for the thermoregulatory battle that is coming. The key is in cardiovascular drift. Any athlete who trains with a pulsometer in summer will have noticed a disconcerting phenomenon: even maintaining a constant rhythm, the pulse tends to rise progressively throughout the training. This is something that has been documented and called ‘cardiovascular derives‘, which is defined as the gradual and continuous increase in the heart rate that occurs during a prolonged exercise of constant intensity, accompanied by a decrease in systolic volume (the amount of blood that the heart pumps in each beat). And precisely the heat stimulates the two mechanisms that drive this phenomenon: The increase in skin flow by vasodilation. This causes blood to ‘stagnate’ temporarily on the periphery, which reduces venous return. This means that the heart does not fill so much in each beat, and therefore the amount of blood that will expel will be less. Dehydration Sudoration is essential to cool the complete system, but it entails a loss of body fluids, mainly from the blood plasma. This again reduces that the blood returns to the heart so that the same volume can be pumped. And to compensate the only thing left is to increase the heart rate. The pulse increase per centigrade grade. Once the ‘why’ of this increase in heart rate is known, an athlete is interested in knowing the ‘how much’. And the reality is that studies have established a very useful general rule to know how our body temperature increases when exercising: In dry heat conditions, with environmental temperatures above 24 ° C, the heart rate Increase approximately one beat per minute for each celsius degree of temperature increase. In wet heat conditions, the impact is multiplied. Here the increase in heart rate triggers between 2 and 4 beats per minute for each degree Celsius that increases the ambient temperature. This difference is not trivial. Exercise at 34 ° C in a dry climate (10 ° C above the threshold of 24 ° C) could involve an increase of about 10 beats per minute in the heart rate for the same effort. On the other hand, to those same 34 ° C, but with a high humidity, the increase could be 20 to 40 beats per minute. This additional load on the heart explains why we call as ’embarrassing’ feels much more … Read more

This year it seemed destined to be the recovery of the crops. Heat waves and fire are changing this

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The last years have been convulsive for the Spanish field. After more than a year suffering a drought that put many against the strings, the arrival of an exceptional humidity period between autumn of 2024 and the recent spring seemed to bring the long -awaited relief. However, the arrival of summer has brought a script. Heat and fire. The intense heat seen in recent weeks has been the climax of a remarkably hot summer, with an exceptionally warm month and one month of August on the way to be (if the imminent cooling does not avoid it). Both extreme heat, as the fires associated with this heat wave have introduced new threats For crops. Direct and indirect damages. The damage associated with heat and fire can be both direct and indirect. It is evident that fire can destroy crops whole and that heat It can also affect to the productivity of plants, but the effects are even more complex. Fire can be an indirect risk. For example, areas that have not been affected by the flames They can be inaccessible During the fires, either due to smoke or by the cut of access roads. Extreme heat can also limit the time that workers can dedicate to work abroad. To this can be added the impact that heat and fires have on the Water availabilityincreasing the ghost of water stress even after almost a period of extraordinary economic bonanza. The oil. Recently, Agricultural Associations such as Asaja, Coag, UPA and Union of Unions They pointed to EFEAGRO Some of the crops that could be more affected by heat and flames. Among them, one about to go through one of its critical points: oil. The Olivar sector fears that this season is not kind to the olive harvest. Water stress can affect the maturation of the fruit so the sector believes that the current situation could lead to olives, dynamiting the (Already scarce) Hopes to recover from the sector. The other crops at risk. The list of harvest at risk by heat is wide. Includes crops like the vineyardpotato, tomato and fruit trees. In the case of grapes, for example, lack of water can replace its phenolic maturation with maturation by dehydration, they explain from the sector, which impacts the quality of the product. Not even crops such as cereals are saved. Although a good part of the harvest has already been collected, in some areas fires can prevent farmers from finishing the collection of these crops. What is true for agriculture can also be for livestock. They are not rare the times that fires are primed with farm animals: even when the fire does not put them directly, their pastures and their abbrevics can disappear overnight. More quantity, less price. Heat and fire add uncertainty to a year marked by Important drops in prices of agrarian products. A very marked fall in some crops but that in general responds to the recovery of agricultural productivity after years of drought. A recovery for which now the sector fears. The good news is that they await us a few days, Maybe weeksof thermal relief. The issue now is whether it is down the temperatures and rainfall that is expected these days are able to relieve this situation. In Xataka | We thought we were facing a “historical” oil harvest. Farmers now foresee a reality bath Image | Matt Palmer / Eberhard Grossgasteiger

Aemet has already concluded the heat wave. Now experts look at Hurricane Erin to know if the cold will endure

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After a heat wave long and intenseSpain begins to travel a few days of thermal relief. However, after several warm episodes, it is worth asking whether the stabilization of temperatures will last over time or if on the contrary the heat will return. Days of calm ahead. Everything seems to indicate that we have several days in which temperatures will remain within normality. We will even see several days in which these will be something below the usual for these summer dates, According to the forecasts of the State Meteorology Agency (Aemet). So much so that even the rebound of temperatures that are expected towards the end of this week and beginnings of the next will not lead us to a particularly warm situation. The cold thermal anomalies At some points they could be below the nine degrees in some areas of the peninsular center, according to expert predictions. Gone is therefore the last heat wave, an episode that has not only been intense but also Looking at the western Atlantic. At the beginning of the week we pointed out that experts looked closely at what happened these days in places as far from our territory as the Western Atlantic and the Antilles archipelago. The reason was in the tropical storm Erin, a storm that reached the category of hurricane and whose journey seemed to turn to the north first and northeast later, undertaking a direction that would take her from the tropical waters to middle latitudes. Why interest? The key is on the impact that this storm could have on atmospheric circulation in these latitudes. According to explained a few days ago The physicist, disseminator and researcher at Aemet, German JJ, the emergence of this cyclone into medium latitudes could complicate the average weather prediction in Europe. Erin regroups. Erin seems to follow the established script and is already in the north direction. The storm has restructured in the last hours, so it can be expected that its progress will continue during the next few days. According to the National Hurricane Center (NHC) of the United States, the hurricane is off the coast of Florida. If the forecasts are completed, the storm will run in parallel to the east coast of the US during the next few days and between Friday and Saturday will reach the 40th parallel, already standing in our latitude. This, details German In another publicationimplies an important change in both atmospheric circulation and in the Jet Stream On the Atlantic, which will strengthen the cooling effect we are now seeing. “Thanks to this, atmospheric dynamics in our region will give a radical change, seem more like that of autumn,” he says. Uncertainty. We will have to wait to learn more about Erin’s course and its impacts, direct or indirect, about Europe. This hurricane reached category 5, becoming the first significant hurricane in a relatively meek season in Atlantic waters. The good news is that, if we can reach our environment, it will already do so as a subtropical storm or post-tropical cyclone, probably entering the continent to higher latitudes than ours. In Xataka | We have centuries studying the different types of clouds. What tells us the shape and color of these atmospheric phenomena Image | NHC / ECMWF

In Spain there is a “black triangle” of fires between Ourense, Zamora and León. And it is not explained only by heat

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The drawing is bleak. If you open Google Mapsactivate the “fire” function And you take a look at the map of Spain you will see that much of the flames that are devouring the mountain of the country (and some populated areas) seem to concentrate on a particular ‘triangle of fire’ between the provinces of Ourense, León and Zamora. There are the fires of Mozyuelas de la Caballea, Yeres or that of Queixa Chandrexawhich have already razed thousands and thousands of hectares. It is not the only region of Spain punished by the flames, but the big question is … Why do forest fires seem to be primed right in that region? The Spain that burns. It is not being a good August for the mountains of the country. According to The last report of the Ministry of Environment (Miteco), still incomplete because its technicians do not have the data of the large active fires, so far this year the flames have devastated 138,800 ha. And that is the calculation to August 10, so it does not include the devastated surface during the last week. To better understand what this data is, remembering that between January and the first week of September 2024 the forest fires burned 43,655 ha or that throughout 2023 they had calcined 89,000. If we look back, at the last decade, there was only one more disastrous exercise than the current one: 2022, when at this point of the year they had burned Around 215,000 hectares. Is the whole country the same? No. The flames have punished to a greater or lesser extent Andalusia, Estremadura, Castilla-La Mancha, Catalonia and the regions of Valencia and Madridto quote only some examples, but there is a specific area of the Peninsula that is suffering from the dentelladas of the fire with special virulence: the triangle formed by the provinces of Ourense, León and Zamora. Tan a Fast look To Google Maps to check it. There is Chandrexa de Queixa, which has affected more than 17,000 ha And it is already considered The most destructive of the history of Galicia. Also that of Mozyuelas de la Carballedathat passed from Zamora to León and has calcined several dozens of hectares. Looking for the causes. The big question is … why do that region hit so much fury? What are the causes? The question is interesting because it is not an isolated phenomenon: there are populations, like Castromil’sbetween Ourense and Zamora, who have resigned themselves to deal with fire every year. For the impact of the flames on the ‘triangle’ between Zamora, León and Ourense He wondered Recently in X Francisco M. Azcárate, professor of ecology, biology and environmental sciences. And its entry response is interesting: the succession of forest fires in that region of the Peninsula cannot be attributed to pyologists or negligence. Or that is not the only cause at least. In the background there are more complex structural reasons that have to do with the characteristics of that area or changes in the use of the territory. Meteorology earrings. “Climatically, the area fits perfectly with ecosystems that, naturally, have a high frequency of important fires,” Azcárate starts Before aiming the influence of the rainy season, during which biomass accumulates, and dry, marked by the mass of dry and very flammable vegetation. To this factor is added the frequency of fires in humid Mediterranean climates or the effect of climate change, which influences extreme temperatures and “extends the risk season.” The fire wave has in fact coincided with Another heat which began in early August and that already stands out as one of The most durable Since at least the 70s, which is when the historical Aemet starts. Although it is not an inflexible guideline, experts have not been warning that the fight against forest fires is especially complex when the known as the known as ‘Rule 30-30-30’: Temperatures above 30ºC, wind gusts of more than 30 km/Hy a humidity of less than 30%. Click on the image to go to Tweet. The perfect cocktail. Not only do climatic conditions or heat wave influence, which has spread far beyond the Ourean-Leon-Zamora triangle. Another of the keys that explains the impact of fires in that concrete area of the Peninsula must be sought, Azcárate points out, on the ground and orography. “The region has acidic and little fertile soils. This favors more flammable plant communities, due to the composition of plants’ tissues,” The expert reflects. At stake also enters the orography of that region, marked by an “abrupt relief” that hinders the access of “erratic and strong” seals that can abruptly change the direction of the flames. A few years ago Civio analyzed The main fires recorded in Spain throughout the 2007-2016 decade and discovered that in almost 80% of cases (153 of 196) the gusts exceeded 30 km/h, which could influence the evolution of fire. Something more than weather and orography. Not everything is climate, meteorology, orography or soil characteristics. In the fires it is influencing another factor than You are talking a lot During the last days: the depopulation of the rural one (which is usually accompanied by the abandonment of fields and a change in forest management), something that starts from the provinces of Ourense, Zamora and León They know well. “In general in Spain there has been rural, population and peoples abandonment and depopulation is a food for fires,” Celso Coco warnsfire expert and forest management in The opinion-the mail of Zamora. And what does that suppose? “The consequence is that in those areas where it was worked, it was grown, it was granted, natural vegetation has been installed and there is no use of them, which has increased the forest area greatly. This continuity of vegetation, without management, results in a vulnerable landscape,” duck. In their opinion, forest fires “have existed, exist and exist” and constitute “a natural process”, but changes in the landscape have affected their impact: where they were previously found with land … Read more

We believed that the heat wave was over. Aemet warns that, in reality, we still have the worst ahead

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The heat wave that affects the peninsula is leaving shocking data. Yesterday, three of the weather stations of the State Meteorology Agency (AEMET) collected maximums above the 45º Celsius, with 55 registering more than 42º. Two records of record. On August 11 and 12 they beat, According to Aemettwo temperature records. With an average temperature that touched the 29th in peninsular Spain, this month has seen on August 11 and 12 more than at least 1950. In fact, they are among the warmer days registered in August: only three times the 29th Celsius barrier has been overcome. On August 12, it was also the hottest day than is going 2025. If they are fulfilled The agency’s forecaststhe first twenty of August will be the warmest in peninsular Spain since there are records, exceeding a few tenths the previous registry (of 2003), and for more than one degree the next highest record, last year. From Seville to Badajoz. Yes Let’s go to the most extreme caseswe can find the 45.2º of the weather stations of Seville, Tablada and El Granado (in Huelva), or the 45.5º collected in Badajoz. Another striking fact were the high minimum temperatures: 29.7º in Osuna (Seville), the highest in peninsular Spain (in Gran Canaria there were thermometers that did not fall from the 30). A number that does not want to leave. The answer to the question of “what is happening” has to do with atmospheric stagnation a “synoptic configuration continues quite stationary”, In Aemet’s words. A dorsal anchored on the peninsula That allows the entry of warm and dry air from Africa, as well as the high degree of insolation propitiated by summer and stable skies, are main responsible for a heat wave that is not only being intense, also long. The latest update of Aemet’s forecasts indicate that this exceptional situation will last at least until Monday 18. The “more likely” scenario is that the entrance of a fresh air mass from the Atlantic serves to relieve the situation, but there are still a few days left for us to know greater certainty when and how the end of this heat wave will be given. What can we expect. Meanwhile, what can we expect? After a kind of brief respite today, Aemet foresees A new increase in temperatures tomorrow Thursday, a more marked ascent in Galicia, where the thermometers can exceed 38º. On Friday this ascent will be extended throughout the north, where orange notices are already planned due to an important risk derived from high temperatures. In Xataka | Every summer fires ravage to Spain. There is a usual guilty that goes unnoticed: old tractors Image | ECMWF

After weeks of concern, the Mediterranean is very close to normal. The heat wave threatens to throw everything into the fret

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Something has changed sharply in the Mediterranean Sea: its temperature. If a few weeks ago the sea that unites Europe, Africa and Asia burning, now the surface temperature of the sea has plummeted to almost normal values, only slightly above what we could expect during these summer dates A few tenth. The latest data on the surface temperature in the Mediterranean Sea have given us good news in the form of stabilization. According to the data Of the coastal observation and prediction system of the Balearic Islands (Socib), as of August 7, the Mediterranean surface is, on average, at 26.03º Celsius. This implies an anomaly was 0.54º Celsius, that is, the sea is more than half a hot than what would correspond at this time. As a contrast, in the middle of June We reported that this anomaly was 2.26º. East to the west. The sea temperature has decreased on average, but has also changed in its distribution. A few weeks ago the focus of the heat was in the Western Mediterranean, while to the east the temperatures were warm but more moderate. Now it happens just the other way around. According to the Socib datathe average west temperature of the Mediterranean is 25.01º, which implies a thermal anomaly of 0.29º. Meanwhile, the eastern side is at 27.06º, 0.81º more than what would be normal in that area and on these dates. A very diverse sea. The data allow us to analyze the change in different regions and, perhaps the area where this change is most palpable, the Northwest Mediterranean. Here, at the beginning of July the thermal anomaly was around four degrees. Now is the most “normal” area of the sea, with a positive anomaly of only 0.17º. Another of the spotlights a few weeks ago was in the surroundings of the Balearic Islands, especially in the waters of the National Park of the Cabrera Archipelago. In these areas, thermal anomaly on June 12 was 3rd and 3.18º respectively. Now, the environment of the Balearic archipelago is only 0.36º above the average, while the waters of the Cabrera archipelago have an anomaly of 0.35º. What happened? June was an extremely warm month in Spain, but it was also hotter than normal in other areas. The absence of section of section and high insolation made the Mediterranean a boiling pot, but the month of July was different. The arrival of a time less torrid in a month of July in which the storms took the prominence in the Mediterranean basin changed this. “Thanks to the dynamics of atmospheric circulation in recent weeks, with the passage of different troughs, the surface waters of the Mediterranean already draw a panorama with a more normal spatial variability,” explained on social networks The physicist, disseminator and researcher at Aemet JJ German. Without throwing the bells on the flight. The descent of temperatures is great news: a Mediterranean too warm increases the risk of storms and copious rainfall like the ones we see in Danas and in episodes of “cold drop”. The question now is to know if this stabilization will be lasting or if we will see a new thermal rebound in marine waters. August has started with a heat wave in Spain with reach beyond the peninsula. June’s thermal rest has ended and we do not know how this change to the waters of the Mediterranean will affect. The issue is relevant due to the environmental and meteorological problems that this overheating would imply. In Xataka | “The Mediterranean already has only three stations”: the European Observatory of the drought confirms that winter is dying Image | Valentin Perret / ECMWF

will pause its AI during heat waves to relieve the electricity grid

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Google has announced A pioneering agreement with two of the main electrical companies in the United States to reduce the consumption of their data centers during energy demand peaks. In other words, Google will pause its artificial intelligence during heat waves. AI is hungry. It is no secret that generative artificial intelligence has a voracious energy appetite. Train and execute the huge models that drive from the summaries in the Google search engine to the youtube folded videos requires dozens or hundreds of megawatts of power continuously. This massive consumption, concentrated in huge data centers, has become a growing concern for electricity companies, which see how energy demand triggers at a rate that the current infrastructure is not prepared to support. An unthinkable movement. Until now, the main concern was to add enough power to the network, with solutions that go From reopening abandoned nuclear centers until Sign the largest hydroelectric agreement in history. But Google’s last movement proposes an unthinkable solution in the competitive AI industry: instead of just increasing energy supply, managing demand flexibly. The measure, agreed with two of the main electrical companies in the United States (TVA and I & M.), arrives just when both states prepare for an intense heat wave. While millions of homes and companies light their air conditioners, putting the electricity to the limitGoogle has agreed to reduce the consumption of its less urgent tasks to avoid overloads and possible blackouts. Demand flexibility. Google has not invented anything new. This type of Flexible response to network demand It already applies in many industries, usually to pay a lower price for the light. Google itself has used it for a long time to postpone non -essential tasks, such as the processing of YouTube videos, moving them to data centers in other time regions or executing them at night, when the demand for the network is lower. The novelty is that, for the first time, it will apply contractual to automatic learning workloads, the heart of the AI. According to the agreement, if the demand for energy increases dangerously or there is an interruption in the network due to extreme weather conditions, operators can ask Google to reduce their consumption. Google will respond by reprogramming or limiting non -urgent tasks until the network stabilizes. You won’t run out of Google Maps. The company has made it clear that this demand response system has its limits. Critical services that require 100% reliability and constant availability, such as the search engine, Google Maps or cloud services for clients of essential sectors such as health, will not be affected. Flexibility will apply to tasks such as the training of new AI models thanks to advances in techniques such as Checkpointing (which allows you to save the progress of training and resume it later). A model could be trained exclusively at night, when the network capacity is greater, without losing the work already done. What does Google win with this? In addition to relieving the overload of the network and preventing off, the clients of the network will end up reducing the light of the light thanks to this system. Including Google data centers. Image | Pawel Czerwinski in Unspash In Xataka | The AI has disrupted Google’s plans to be sustainable. His plan to remedy it: the “four m”

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