Very few countries in the world are dedicated to the industrial production of avocados. Now an unexpected one has joined: Japan

Tsutomu Uchida is 64 years old, is a retired entrepreneur and for a while now He spends hours working on a plot located in the Shizuoka districtwhere different cultivation techniques prove. So far unusual. The funny thing is that Uchida is not dedicated to Plant riceneither soy nor Mikana very popular citrus in the region. No. His interest has little to do with traditional vegetables. What is trying to grow since 2020 are avocados, a plant that wakes up more interest in Japanese agriculture. The reason: the market … and climate change. What happened? That in Japan, Rice landcherries and citrus, there are farmers who begin to Look with interest A new variety of crop, a very popular in other latitudes but that has so far had an almost testimonial weight in the country of the rising sun: avocado. And the most curious thing is what that curiosity is awakening. Beyond the growing Internal demand or the Production increase Worldwide, the factor that has led Japanese farmers to plant avocados is climate change. Shizuoka avocado. The news I advanced it A few days ago The Japan Times: More and more farmers in Shizuoka Prefecture show interest in avocados. The phenomenon is curious for several reasons. First, because the traditional cultivation of that region is another good, the Mikana citrus similar to mandarin. The second reason is that this interest It is promoted by local authorities. Shizuoka Prefecture has just activated a triennial plan that aspires, among other goals, to develop cultivation techniques and sales channels focused on avocado. With that purpose the institution plans to invest over the coming months 18 million yen (about 100,000 euros) in investigations to improve local production. Putting his head. If everything goes as planned, in three years you will publish a manual for farmers. It may seem like a modest initiative, but it is quite significant: Shizuoka is one of the main producing regions of Mikan From Japan and right now the avocado cultivation in the country is very small. According to the Ministry of Agriculture, in 2022 there were hardly any 34 tons who came out above all from Saga, Ehime and Wakayama, territories that (exact!) have always stood out for their citrus. TEMPERATURES QUESTION. The most curious thing is that this growing interest in avocado is not explained only for its internal demand or market prospects. At stake there is another equal or even more relevant factor for Japanese farmers: climate change. Their effects already They let themselves feel in the Rice crops and They threaten to punish to much of the plantations of Mikan of the country while They favor to those of avocado, a tree originally from Mesoamerica. “We cannot simply advance complaining about the negative impact of change on the agricultural environment. We are trying to convert this adversity into an opportunity and make the most of it,” Recognize to The Japan Times Yuji Hirano, responsible for agricultural strategies in the government of Shizuoka. With that clear idea, the prefecture probes the pros and cons of betting on a dozen subtropical crops in the region. Among them there was one that stood out for their “pull” in the market and that could also be favored by the weather: the avocado. But … what are they based on? In forecasts that draw such a promising scenario for avocado as a funeral for the Mikan. In March the National Organization for Agricultural and Food Research (Naro) public A report in which he warns that the future of citrus in Japan “will depend largely” on greenhouse gas emissions while avocado suitable areas could expand its current size more than 2.5 times by the middle of the century. An uncertain horizon. Nikkei It goes further And he warns that climate change can make that at the end of the Japanese century find that 80% of the areas that are right now for the cultivation of tangerines cease to be. With the land suitable for avocado plantations, a subtropical fruit, the opposite would happen: they would multiply by 7.7. “Maybe you think that a temperature difference of 1ºC does not mean much,” Clarify Toshihiko Sugiura, from Naro. “But for him Mikan It makes the difference. “ Hence the scenario can vary greatly depending on what happens in the coming years. If for 2100 the temperature rise does not exceed 1.4ºC the country may keep 80% of the current surface destined for Mikan. If the increase is 4.3ºC as soon as any. However, and although the increase in temperatures may make it easier, the avocado is not guaranteed in Japan either: the winter cold waves would mean a serious threat. The other key: the market. The other factor that explains Shizuoka’s interest in avocado should be sought in the market. The Japan Times remember that today the fruit is much more popular in the Japanese fruit shops than a few decades ago. And the data show it. In 1988, only 3,400 tons were imported. In 2020 there were already 80,000. That boom coincided with an increasing exposure of the fruit in the country’s media, which began to highlight its nutritional value as “superfiment” rich in vitamins and fiber. Today the avocado is already integrated from the diet of many Japanese and it is easy to find in supermarkets, although the nation basically depends on imports. The vast majority (at least in 2020) comes from Mexico, where they start around 85% of importsand Peru, which brings together about 11%. National production is scarce and is sold at prices greater than foreign fruit. Images | Eddie Pipocas (UNSPLASH), 光曦 刘 (UNSPLASH) and Rui Hao Lim (UNSPLASH) In Xataka | Japan is suffering a bankruptcy record from Ramen. And in part it is the result of the “1,000 yen barrier”

If you had always dreamed of having your own tunnelador or an industrial crane, good news: they are in Aliexpress

If there is an absolutely reference country in the field of tunneladoras, that is China. The funny thing is that these industrial machines can be found and buy very easily: it is enough to take a walk through Aliexpress or Alibaba to see them already prepared the sale along with other machines in the field of construction such as Cranes for containers. Second -hand tunneladoras. As Point out The specialized medium JR Urbane Network in X, it is possible to find second -hand tunneladoras in Alibaba or Aliexpress. It is enough to search for its conventional name (Tunnel Boring Machines, TBM) so that among the results a good number of them appear. As this media explained, China Recycle these tunneladoras and reuse them in different underground projects. Prices. The image machine, the CTE6250, is a medium -sized TBM with a weight of 500 tons and a six meter shield diameter. This model is Available in Alibaba for $ 688,000. A “micro machine” of “underground elevation” without excavation and with a six -meter shield diameter is $ 288,000. If we want it bigger, 9.1 meters in diameter, we will have to pay $ 748,000although taking it home will not be easy: it weighs 1,150 tons. Its manufacturer, the company Gansu Technology Equipment CO, has various models available in Alibaba. How TBM operates. These machines go beyond being a gigantic and powerful drill: in addition to the rotating cutting device, the tunnelador is equipped with a equipment that allows it to collect the rubble that is generated as the galleries open and stabilizes its structure. In addition, models that excavate underwater tunnel Hermetic mixture special and prefabricated and intertwined concrete blocks. Giant tunneladoras. In July 2023 we already talked about the Tunnel Mixshield S-880 “Qin Liangyu”. It was designed for the underwater tunnel project Tuen Mun-Chek Lap Kok in Hong Kong, and served to dig a stretch of about 5 km under the sea. It measures 120 meters long, weighs 4,850 tons and most importantly: the diameter of its shield is 17.63 meters. She is the largest tunnelador in the world. Although the tunnelador was manufactured in Germany by the company Herrenknecht Agthe assembly and operation was carried out in one of the factories of this company in China. Excavates about 30 meters of tunnel a day and is officially The largest TBM in the world According to the Guinness book of records. China winning Germany. We already have a candidate to overcome it: The Jianghaideveloped by China Railway Construction Heavy Industry (CRCHI) and the so -called China Railway 14th Bureau Group. This machine weighs about 5,000 tons, measures 145 meters long and has a shield diameter of 16.64 meters. The goal is to use it to build a tunnel that cross the Yangtsé River in the Chinese province of Jiangsu, between Nantong and Suzhou. And many industrial machines. A TBMS search in Aliexpress Not only offers offers for this type of machines, but for many other of this segment – perforas, industrial milling machines – and even cranes for maritime transport containers. In Amazon it is possible to find excavators/milling machines of “small” dimensions (1.8 m in diameter) for about $ 25,000, but the Chinese machines are at another level. Musk’s are small. It is not the only one in its class. Much more recently We met the Shanhe tunnelador163 meters long, 5,200 tons of weight and 17.5 meters in shield diameter. This machine is used to build the world’s largest diameter submarine tunnel. The company The Boring Company created by Elon Musk uses much smaller, almost “portable” tunneladoras: the PRUFROCKfor example, it has a shield diameter of 3.6 meters, although that allows it to dig much faster: approximately 1.6 kilometers per month. China, referent. In China Daily They point How 7 out of 10 tunneladoras sold in the world are Chinese, and within the country 95% of these machines are also of national manufacture. As in other industries, there is a strong commitment to self -sufficiency and technological domain in key areas like this. Although the largest are Herrenknecht, companies such as China Railway Engineering Equipment Group (CREG) have been one of the market leaders in manufacturing and sale of tunneladoras for years. In Xataka | England and Ireland wanted to create the longest tunnel in the world. A “stupid” and “advanced in your time”

China is immersed in a nuclear revolution and needs industrial amounts of Uranium. His solution: “fish” in the sea

China is one of the countries that is most promoting the adoption of renewable energy thanks to Great ‘farms’ and market saturation of solar panels. At the same time, they have approved the Construction of ten new nuclear reactors. It may seem a contradiction, but in the midst of a Strong commercial warit is another step in energy self -sufficiency, and to achieve it they will need tons of uranium. Your solution? Squeeze the uranium of the seas. Marine mine. The country account with 56 nuclear reactors and has between 25 and 29 under construction. This implies that they need a lot of Uranium and the problem is that they do not produce enough. HE esteem That, in 2023, China’s production was only 1,700 tons, 4% worldwide, and although they have strong reserves, they need more. In turn, China imported Some 22,000 tons in 2024 and have begun to put solutions. In 2024 began The construction of the National Project of Uranium Nº1 in Ordos. It will become the largest uranium mine in the country and a few months ago They announced that had discovered another important site, also in Ordos. However, it still is not enough, so they have seen the sea. Uranium fish. Because yes: there is uranium in the oceans. Its concentration is extremely low, about 3 micrograms per liter, but due to oceanic immensity, it is estimated that the total is 4.5 billion tons of uranium. There are a thousand times more uranium in the seas than in known land reserves. Extract Uranium from the sea is not something new and, during the 80s, Japan led the development of marine uranium extraction techniques. The problem is that it is a complex and, above all, inefficient process. That is why researchers focus on active uranium collection methods‘dapando’ different materials to be able to extract more material per liter. It is also a expensive method, about ten times more to extract it from terrestrial sources. Miraculous material. But this is where the Chinese team of the Frontiers Science Center For Rare isotopes of the University of Lanzhou enters. In a study published in NatureThey explain that the key to extracting more efficient marine uranium resides in the MOF, or metal-organic frameworks. It is a crystalline material composed of metal ions that are coordinated with organic elements to form structures of great porosity. It is like an extremely efficient fishing network to catch small particles that, in the case of uranium, allows you to better separate this element from others to which it can be attached. The Chinese team has dopa with Dipniletinelo molecules and claim that this new DAE-MOF material allows an uranium absorption capacity of 588 mg per gram, according to the tests. This involves an efficiency 40 times higher when separating uranium from metals and vanadium and has been tested both in simulated and real sea water. Aim. The idea is now to create test extraction plants this year, with pilot plants on the tons scale for 2035 and with a continuous production by 2050. wait That China’s demand for uranium is more than 40,000 tons in 2040, so land mines in conjunction with these marine alternative sources are essential to achieve the goal. Without a doubt, it is an advance in marine uranium extraction at a time when the rest of the players on this board are also found Looking for ways to get more out of the sea for energy independence at a time when buying to other countries He has put up legs. And the United States, of course, is also in that fight, with the US Department of Energy analyzing The technical, economic and environmental viability of large -scale uranium extraction in its waters. Images | Robordouderio, Robert Taylor from StirlingNature In Xataka | Spanish nuclear have been criticized for their role in the blackout. This was what they did before, during and after collapse

Huelva has been the forgotten industrial pole of Spain for decades. We are realizing the consequences

Industrial and miners are a problem in different points of our geography. It is still a problem in places where deindustrialization left hectares of empty but contaminated soils and is a problem in the vicinity of some active industrial poles. And one of the places where this is most appreciated is in the estuary of the Odiel and Tinto rivers, on the coast of the province of Huelva. As, PB, CD, MO, SE. A new study He has found evidence that people who live in the vicinity of Huelva industrial areas accumulate in their bodies amounts higher than the average heavy metals such as those we usually associate with industrial activity. The study observed that among the inhabitants of the region, the accumulation in the body of certain elements was greater than usual. The study was done In the city of Huelvabut it was observed that the pollutants varied depending on the residence area of ​​the participants. Different concentrations. Among those who lived in areas closer to the rafts of phosphoyesos From the region, the study found a greater presence of elements such as arsenic (as), lead (PB), cadmium (CD), molybdenum (mo) and selenium (se). These types of elements can be found, precisely in places where this type of waste is stored. On the other hand, the team also found areas that stood out for the presence of elements such as copper (cu), zinc (zn) and aluminum (al). These areas were the closest to the industrial area of ​​the region. In general, the inhabitants of the city of Huelva presented greater concentrations of iron (faith), nickel (ni), chromium (cr), selenium (se), arsenic (as), and copper (co) according to the results of the study. The “chemical and industrial pole. The study was conducted in the city of Huelva, a city located near the coast, between the confluence of the red and odiel rivers. The city counts around, explains the team responsible for the study, with three important industrial areas. First, phosphoyesos rafts can be found, an industrial residue resulting from the extraction and processing of phosphoric acid. This residue is categorized as a radioactive material that occurred naturally or norm (Naturally Occurring Radioactive Material) and the Huelva reserve is the largest in Europe, the team recalls. To this we must add two more conventional industrial areas, the “Chemical Pole for the Promotion and Development of Huelva – Punta del Sebo” and the “Nuevo Puerto Palos de la Frontera”. Both areas also located in the vicinity of the capital (being the first adjacent to it). 55 participants. The study was conducted with a little girl from participants residing in the capital. Samples extracted from the feet nails of these to estimate the concentration in the bodies of a series of elements: aluminum (al), arsenic (as), cadmium (CD), copper (cu), chrome (cr), iron (faith), nickel (ni), Uranium (U), Vanadio (V) and Zinc (Zn), among others. The details of the study were published In an article In the magazine Journal of Xenobiotics. In Xataka | The countries that most pollute the world, gathered in a detailed graphic Image | Victor / Manuel Cortés Núñez

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