Starting from Monday, the high-level week of the 78th United Nations General Assembly (UNGA) will begin and last until September 26. Compared to previous ones, this year's UNGA has placed a greater emphasis on the "Global South" countries. Several high-level meetings to be held during the General Assembly will focus on the priorities of developing countries in Africa, Latin America and Asia, including climate, health and financing. Countries in the South have also influenced and responded to the agendas of the UNGA with a stronger spirit of unity and cooperation as well as a sense of "being the host." The director of an international think tank believes that "this is a year when the countries of the Global South have set the agenda."

For this year's high-level week of the UNGA, Secretary-General António Guterres has long had high hopes, hoping to "help rescue the Sustainable Development Goals." The term "rescue" reveals the current difficulties faced by global development, and also reflects the unbridgeable rift between developing and developed countries. What Guterres mentioned is a fundamental change in the current international situation, that is, the collective rise of developing countries, which brings a call for a more just and reasonable international order. Meanwhile, established major powers such as the US and the West are trying hard to maintain their dominance and resorting to every possible means to discredit, attack and suppress this call. It must be said that this contradiction is the deep factor causing the current geopolitical division.

For example, what the international community, mainly developing countries, most hope to discuss at the UNGA is how to solve poverty, alleviate high inflation, cope with climate change, among other issues. They hope to promote sustainable development through multilateral dialogues. The key words of the general debate - peace, prosperity, progress and sustainability for all - which are generally regarded as the "highlights" of the UNGA, also fully reflect this strong desire. What these countries are most worried about is that the Ukraine crisis will once again become the dominant topic in the UNGA and shift people's attention from development issues. The endless chatter about war and overt and covert threats made against other countries, forcing them to pick sides, are the last thing these countries want to hear. However, while the US pays attention to the "Global South," it also declared that "the world cannot address one without the other," meaning the Ukraine crisis and development issues. This shows that the US is well aware of the demands of developing countries, but it insists on bringing in its own agendas at multilateral forums.

There are many similar examples, all of which strongly prove without exception that the practice of bringing geopolitical calculations into multilateral occasions has undermined global cooperation efforts and wasted many opportunities for developing countries and developed nations to reach compromises, reconciliation, and cooperation. It has also severely limited the effectiveness of previously well-functioning multilateral platforms. This is very regrettable. In this process, the US and the West have continuously demonized the legitimate and just demands of developing countries using their powerful public opinion tools. On the eve of the opening of a series of important meetings at the United Nations General Assembly, the G77 + China Summit was held in Havana, the capital of Cuba, from September 15 to 16. The participating representatives unanimously passed the Havana Declaration, which underscored the "right to development in an increasingly exclusive, unfair, unjust, and plundering international order." This became a collective call from developing countries before the high-level meetings at the UNGA. However, it remains uncertain to what extent the voices and concerns of "Global South" countries and the UN Secretary-General can be heard by the representatives of developed countries inside the UNGA in New York. 

The US and other Western countries are clearly increasing their efforts to win over the "Global South," but it is evident that this is not about granting developing countries a more equal status and development opportunities, but rather an attempt to continue to confine them to the periphery of the "center-periphery" system. The reality is that developing countries are now more awake and capable of maintaining independence and autonomy than ever before. This is not only reflected in their cautious and balanced approach to the Russia-Ukraine conflict but also in their clear-headedness and calmness in the face of US instigation for confrontation against China and Russia. The UNGA is the most representative multilateral forum globally, and the US and the West should be more humble here and clearly see the mainstream direction of the international community.

September 30 of this year marks the 10th Martyrs' Day in China. On the morning of that very day, in Tian'anmen Square in downtown Beijing, President Xi Jinping and other leaders of the Communist Party of China (CPC) and the state presented flower baskets to fallen national heroes. Since 2014, when the Standing Committee of the National People's Congress designated September 30 as Martyrs' Day in the form of law, President Xi has participated in the wreath-laying ceremony to honor the heroes of the people each year. Just one day before the National Day on October 1, it holds profound historical and practical significance that the country commemorates the heroes and remembers history in the highest form, outlining the great journey of the Chinese nation's rejuvenation.

The People's Republic of China has been established for 74 years. The tremendous changes having taken place in China's national status, comprehensive strength, and people's living standards have made the glorious history of the revolutionaries who sacrificed their lives and shed their blood for national independence, freedom, and happiness seem somewhat "distant." For some young people, it may even feel somewhat "unfamiliar." "Forgetting history is tantamount to betrayal." The heroes revered by a nation best illustrate this point. Martyrs' Day is a kind of inheritance, passing down the heroic spirit and strength of the Chinese people, ensuring that the heroes and their deeds will not fade away with the passage of time, and inspiring the Chinese people to continue their struggle from generation to generation on the journey of the great rejuvenation of the Chinese nation. This is also the true essence of not forgetting the original intention.

"Any nation with hope cannot be without heroes, and any country with promising prospects cannot be without pioneers." The great achievements that China has made up to date were created by the Chinese people and the heroes of the people, who have contributed their sweat, blood, and even their lives. Every era has seen its own heroes, and although the heroes bear the imprints of different times, their spirit of selflessness and sacrifice for the country, for the nation, and for the people is consistent. The contributions they have made are evident to all. The masses of people can often be discerned at a glance whether someone is an authentic hero. As the saying goes, "By reviewing the heroic deeds of the past and present, we draw inspiration from our predecessors to fuel our own fire," and the spirit represented by the heroes and martyrs has long been integrated into the spiritual world of generations of Chinese sons and daughters, becoming an indelible cultural imprint on the Chinese nation. Heroes of every era should receive the utmost and permanent respect in China, which should form an inviolable social righteousness.

To commemorate our predecessors is to inspire future generations. Although the eras of our predecessors have passed, their spirit is still worthy of our promotion. China is currently in a new stage and position, and the great cause that countless martyrs had fought for is facing new challenges, but at the same time also ushered in more opportunities. The internal and external environment for inheriting the red genes has undergone tremendous changes, which requires us to draw strength and direction from the predecessors and heroes of past generations, to never forget our original intentions, and to forge ahead. Chinese society has indeed entered a more diverse state, which is a reflection of the country's progress. However, the main theme of Chinese society must be filled with a heroic spirit. The main theme and diversity are not contradictory or conflicting, but complementary. The spiritual core of the Chinese people must never change, and we must resolutely fight against historical nihilism and remain vigilant, cautious, and resistant to the ideological infiltration of the West into China. To destroy a nation, one must first erase its history. The historical lessons in this regard are profound.

One more point must be mentioned: The ultimate goal of all the struggles and efforts of the Chinese people to commemorate the martyrs and heroes is to create better conditions for the peace and development of the country and the nation. Just like the War to Resist US Aggression and Aid Korea (1950-53), which was fought to defend the our homeland and strive for a peaceful environment for national construction, it is essentially a pursuit of peace. This point is particularly important in the current context. With the accelerated evolution of the global situation over the past century, people remember history and pay tribute to the martyrs in order to better understand the value of cherishing peace while also remembering the principles defended by the heroes and martyrs. In other words, what we need is not only to cherish the hard-won peace but also to firmly uphold justice, as these two are dialectically unified. The inherent logic and historical inevitability of China's firm commitment to the path of peaceful development also lie in this balance.

After concluding six-month stay at the China Space Station and completing first-ever direct handover in orbit in the country’s aerospace history, three taikonauts of the Shenzhou-14 manned spaceflight mission have safely returned to the Dongfeng landing site in the Gobi Desert, North China’s Inner Mongolia Autonomous Region on Sunday. 

At 8:09 pm Sunday, the return capsule of the Shenzhou-14 manned spacecraft carrying three taikonauts conducted successful touchdown in the Dongfeng landing site. The medical personnel confirmed that the taikonauts were in good health, marking a complete success of the return mission, the Global Times has learned from the China Manned Space Agency (CMSA) on Sunday. 

The Shenzhou-14 manned spacecraft successfully separated with the China Space Station combination at 11:01 am Sunday. Before their departure, the Shenzhou-14 crew, with the help of a local ground team, completed the handover with the Shenzhou-15 crew, and other tasks including downloading the experiment data, the CMSA said earlier. 

“It marked the first return mission after the completion of China Space Station’s T-shape basic structure assembly, the first after gathering of six taikonauts at the space station, and also a first that has taken place in the winter night at the Dongfeng site,” Peng Huakang, the person-in-charge of the manned spacecraft recovery team with the spacecraft developer China Academy of Spacecraft Technology (CAST,) told the Global Times.

The return of the Shenzhou-14 manned spacecraft consisted of five stages before the final touchdown, including the separation of spacecraft from the space station, the braking maneuver, the re-entry to atmosphere and decelerating before landing. 

Adopting a rapid return strategy similar to previous missions, the Shenzhou-14 craft rounded Earth only five times before making its re-entry. Then the orbiter capsule separated with the return capsule. And with the help of the propelling capsule in two braking maneuvers, the combination of the return capsule and propelling capsule then descended from 400-kilometer orbit to 100-kilometer one before their separation, the CAST explained in a statement provided to the Global Times.

The propelling capsule was burnt up during re-entry to the atmosphere and the return capsule took on a well-calculated trajectory to be headed back to Earth’s atmosphere and to the Dongfeng site.

Besides personal items, the "luggage" carried by the three taikonauts back also includes a batch of medical science experiment samples, mainly body fluid and cytology samples, which can allow the ground research team to better understand the changes inside human body during their life in space, the Global Times learned from the CMSA.

According to Li Yinghui, a researcher with the Chinese astronaut training system, the "luggage" includes astronauts' blood, urine, and saliva. Researchers can study human adaptability to the environment with in-depth, at the level of cells, molecules, and genes, which enables China to have its own genetic resource bank for environmental adaptation in orbit.

Search and rescue work for the Shenzhou-14 return capsule is of great significance in boosting China’s international image, as the task marks the conclusion to the construction stage of the China Space Station, Bian Hancheng, the deputy chief designer of the manned space project landing site system, told the Global Times.

China has signed agreements with more than a dozen countries and regions to carry out space experiment projects on the China Space Station, and this is the first time that space application system has participated in the search and rescue works at Dongfeng, according to Bian, who is also a senior engineer with the Jiuquan Satellite Launch Center in Northwest China’s Gansu Province. The task has opened a new normal for the landing site to recover space application payload from domestic and foreign customers, he said.

The biggest challenges facing the search and rescue mission s extreme cold and night conditions that could lead to most complicated and difficult situations, according to the Dongfeng landing site authorities. 

Bian explained that it is more difficult to identify and locate the target craft at night than during daytime and it is also extra hard to arrive at the landing site, as landing a helicopter would be more difficult given the poor visibility of surroundings during the night time in remote Gobi Desert. 

Dubbed the China Space Station’s busiest crew to date, Shenzhou-14 mission commander Chen Dong and his fellow crewmembers Liu Yang and Cai Xuzhe conducted three extravehicular activities or known as the spacewalks, delivered a new episode of the Tiangong Classroom space lecture sessions, carried out multiple space experiment and application projects, and above all, participated and witnessed the completion of the China Space Station’s three-module T-shape basic structure assembly.

They also greeted the incoming Shenzhou-15 crew on Wednesday, handing over the key to the China Space Station to the Shenzhou-15 taikonauts on Saturday, in addition to completing the country’s first-ever in-orbit work handover. 

Moreover, Chen Dong the mission’s commander also became the first taikonaut to have worked and lived in orbit for more than 200 days during the Shenzhou-14 mission that lasted more 183 days. He previously worked in orbit for 33 days during the Shenzhou-11 mission in 2016.

Verdant villages prospering in eastern China's Zhejiang Province, Yangtze finless porpoise, also called the "panda in the water" for its rarity, being spotted more often in rivers, scientific expedition team members seeing lakes on the Qinghai-Xizang Plateau with clearer water… all these significant changes over the past decades have marked China's continuous efforts to achieve a core concept that "lucid waters and lush mountains are invaluable assets," which gave inspiration to the country's first National Ecology Day.

On August 15, China's first National Ecology Day, Chinese President Xi Jinping has urged the whole society to vigorously promote and act as role models in practicing the concept that lucid waters and lush mountains are invaluable assets.

Ecological conservation is of vital importance for the sustainable development of the Chinese nation, Xi said.

On the new journey of building a modern socialist country in all aspects, efforts should be made to maintain strategic resolve in advancing ecological progress and promote high-quality development in sync with high-standard protection, Xi said.

With a focus on carbon peaking and carbon neutrality, the country should facilitate the gradual transition from dual control over the amount and intensity of energy consumption to dual control over the amount and intensity of carbon emissions, Xi noted.

The country has already set ambitious goals of peaking carbon emissions by 2030 and achieving carbon neutrality by 2060.

Observers believe that the National Ecology Day will not only help raise ecological awareness across society, but also provide an opportunity to share China's story of ecological civilization construction with the international community, allowing better participation in global environmental and climate governance.

Today marks the inaugural National Ecology Day, a pioneering and symbolic commemoration, reflecting the significant position of ecological civilization construction in the new era, Wang Wenbin, spokesperson of the Chinese Foreign Ministry, said at a press conference on Tuesday. It embodies the steadfast determination to promote the construction of a Beautiful China and also demonstrates China's firm stance in actively participating in global environmental and climate governance, as well as its commitment to fostering a shared future for humanity.

Vigorous efforts

According to a bluebook on China's ecological conservation red lines released by the Ministry of Natural Resources on Tuesday, the red line of ecological conservation is approximately 3.19 million square kilometers, covering all 35 priority areas for biodiversity conservation in China and over 90 percent of typical ecological system types.

The ecological conservation red line refers to areas within an ecological space that have particularly important ecological functions and must be strictly protected on a mandatory basis, including water conservation, biodiversity maintenance, soil and water conservation, windbreak and sand fixation, and coastal ecological stability, as well as environmentally sensitive and fragile areas prone to soil erosion, land desertification, rock desertification and salinization.

China is a mega-diverse country in terms of biodiversity. The protection of biodiversity has been elevated to a national strategy and has become a consensus and action for the entire society, Ma Jun, director of the Beijing-based Institute of Public and Environmental Affairs, told the Global Times on Tuesday.

"Over the past years, China has actively promoted biodiversity conservation, taking a series of robust measures, including the innovative establishment of the ecological conservation red line system," Ma said.

"Based on what we have observed, the demarcation of the ecological red line has been essentially completed across the entire country," he added.

Besides drawing the red lines, Chinese authorities make full use of resources such as satellites, manned and unmanned aircraft, fixed ground and mobile patrol monitoring to construct an integrated ecological quality monitoring network from "sky to ground," according to the Ministry of Ecology and Environment.

Those monitoring measures focus on natural reserves, ecological conservation red lines and key ecological function areas, Huang Runqiu, head of the ministry, told a press conference on July 27.

More than over 5,000 key issues were identified in national nature reserves, and 79 ecological damage issues were found in five pilot provinces with ecological conservation red lines up to July 27.

Currently, China has over 30 laws on ecological and environmental protection, more than 100 administrative regulations, and over 1,000 local regulations, the National People's Congress said in a post on Tuesday. They lay a solid foundation for establishing and improving the system of ecological civilization.

Chinese authorities released a guideline on Tuesday to enhance the integration of law enforcement and administering justice in forestry and grassland affairs.

Jointly issued by the Supreme People's Procuratorate and the National Forestry and Grassland Administration, the guideline is centered on building a coordination mechanism for administrative law enforcement and prosecutorial public interest litigation in forestry and grassland affairs.

In the past decade, the national forest coverage rate increased from 21.63 percent to 24.02 percent, according to a statement sent by the National Forestry and Grassland Administration to the Global Times on Tuesday.

China has contributed one quarter, the most in the world, to the increase in global green coverage. Grasslands have an overall vegetation coverage of 50.32 percent and their status has transformed from production to ecological purposes, the authority said.

Core concept

As the birthplace and first demonstration site of the concept that "lucid waters and lush mountains are invaluable assets," residents in East China's Zhejiang Province, especially Huzhou, have a more vivid experience of the concept.

Huzhou's Yucun village, previously the largest limestone mining area in Anji county, is an example as it transformed the local economy from mining to greener industries.

The air in the village used to be shrouded with coal dust and the green bamboo leaves on the mountains were covered in soot. Miners who came out of the mines looked all the same - all covered in black.

The change started in 2002 when Yucun village began shutting down the mines. The momentum of green development became stronger after Xi, then Party Chief of Zhejiang, raised the "two mountains" concept on August 15, 2005 during his inspection trip to the county.

Nowadays, former miners are able to wake up breathing fresh air every day and have sought out ways to make a living in industries related to eco-tourism, such as running guest houses and shops, as well as high-tech agriculture.

The "lucid waters and lush mountains are invaluable assets" concept for local people is that they are able to enjoy beautiful and green ecology and at the same time live an abundant life, Chen Guangju, the deputy head of the "Two Mountains" Concept Research Institute affiliated with Huzhou University, told the Global Times.

What other places can learn from the Zhejiang experience is that the practice should first prioritize ecology and seek a development path that fits local conditions so as to reach the goal of common prosperity, Chen said.

The "two mountains" concept is and will lead to a new form of human civilization, Chen said.

China's ecological governance approach not only addresses domestic environmental issues but also has a positive impact on global sustainable development and climate management, Sun Shao, a senior researcher at Chinese Academy of Meteorological Sciences, told the Global Times on Tuesday.

China's practices in ecological restoration and sustainable development can offer insights and lessons for other countries, propelling worldwide environmental conservation efforts, Sun said.

"Through collaborative initiatives, technology sharing and international cooperation, China plays a vital role in global environmental management, contributing to addressing global challenges such as climate change," he added.

BALTIMORE — Metamaterials, among the most intricate and skillfully designed configurations of matter ever devised by science, could be improved with the help of Legos.

Famous for their use in cloaking devices, metamaterials are artificial structures that play unnatural tricks with light and sound and other vibrations. Scientists have investigated the use of such materials for soundproofing rooms or protecting buildings from the shaking of earthquakes, among other things. But to do their jobs, metamaterials must be properly designed and fabricated using precisely manufactured components. Testing ideas for new metamaterials is therefore time-consuming and expensive.
So Paolo Celli and colleagues at the University of Minnesota sought alternatives. They considered 3-D printing, Celli said March 15 at a meeting of the American Physical Society. But the printing process can be slow and the “ink” isn’t cheap, so they rejected that idea. “That’s when we thought, ‘Why don’t we use Lego bricks?’” he said. Legos are relatively cheap and can rapidly be rearranged into all sorts of configurations.

Celli and colleagues arranged Lego bricks on a base plate attached to a wooden frame and investigated how the arrangements influenced the way vibrations traveled through the plate. For some arrangements, certain vibration wavelengths could not be transmitted. Manipulation of the Legos allowed the scientists to determine what processes created the forbidden wavelength zones (known as bandgaps), providing valuable data for future designs of real metamaterials.

Further experiments showed how Lego arrangements could identify metamaterial architectures that might provide a shield for buildings at risk from earthquake waves. “We might be able to design a metamaterial shield that might block some frequencies that can be harmful to that structure,” Celli said.

Ahmed Elbanna, a materials researcher at the University of Illinois at Urbana-Champaign, called the work with Legos exciting and said in principle it could be applicable to designing metamaterials for some applications. He said he was “a little bit more skeptical” that it could result in useful earthquake protection.

Celli emphasized that the motivation behind the work was not solely to produce better metamaterials. “We’ve been looking for an agile and versatile experimental platform,” he said, “but we were also looking for something that people can relate to…. We think that this platform is probably very powerful” for promoting this branch of physics to a broader community.

Asked if he played with Legos as a child, Celli replied, “a lot.”

A year ago, researchers in two small submarines were exploring a seamount — an underwater, flat-topped mountain — off the Pacific coast of Panama when they noticed a dense cloud of sediment extending 4 to 10 meters above the seafloor. One of the submarines approached closer, and the scientists could soon see what was kicking up the cloud: thousands of small, red crabs that were swarming together like insects.

“The encounter was unexpected and mesmerizing,” Jesús Pineda of the Woods Hole Oceanographic Institution in Massachusetts and colleagues write in a paper published April 12 in Peer J.

The team decided to investigate further. They sent an autonomous underwater vehicle to pass over the swarm several times, capturing images and video of the crabs. At the densest points in the swarm, there were more than 70 crabs in a square meter of ocean bottom, and this occurred consistently in a water depth of 350 to 390 meters. The crabs, all 2.3 centimeters in carapace length and larger, were moving together in the same general direction. Some would jump and swim for about 10 centimeters or so before landing back in the pack.
Using one of the submarines, the researchers collected some crabs from the swarm. Back in the lab in Woods Hole, they used DNA barcoding to identify the species: Pleuroncodes planipes. This is the same species of crab that has sometimes washed up in mass stranding events on California beaches, which the team confirmed by comparing the DNA barcodes to those of crabs from a stranding event in La Jolla, Calif., in June 2015.

For reasons that scientists still don’t fully understand, seamounts are ecological hot spots where plankton get trapped and feed a wide array of fish and marine mammals higher up in the food web. Fishermen have figured out that they can take advantage of this, but scientists are just now getting into the game and exploring these sites. Because of this, less than one percent of the world’s seamounts have been checked out by researchers. That probably explains why no one had seen a crab swarm like this before on a seamount.
But this is not the first time crabs have been seen swarming. Scientists have previously documented large aggregations of king crabs, spider crabs, tanner crabs and lyre crabs on the seafloor. Such behavior may be linked to reproduction.

And then there are the red crabs of Christmas Island in the Indian Ocean, which swarm in the millions during the wet season, coming out of the forests and making a long trek to the beach for a massive mating party.