Global Pulse

分类： science

  • China reports rising investment in science popularization in 2024

    China reports rising investment in science popularization in 2024

    China has demonstrated significant advancements in its national science popularization infrastructure during 2024, according to official statistics released by the Ministry of Science and Technology. The comprehensive data reveals substantial growth across multiple dimensions of scientific public engagement.

    The country’s network of science and technology museums expanded considerably, reaching 1,890 facilities nationwide—marking an increase of 111 institutions compared to the previous year. This expansion represents China’s continued commitment to creating physical spaces dedicated to public science education.

    Financial investment in science outreach initiatives reached unprecedented levels, with total funding climbing to 22.22 billion yuan (approximately $3.19 billion). This figure reflects a 3.32 percent year-on-year increase, demonstrating sustained government and institutional support for science communication programs.

    The human capital supporting these efforts similarly grew, with the science popularization workforce expanding to approximately 2.21 million professionals working either full-time or part-time in the field. This represents a 2.62 percent increase from 2023, indicating career growth and opportunity in science communication sectors.

    Public participation metrics reached extraordinary scales, with over 1.44 million science lectures conducted through both online and offline platforms, collectively attracting more than 2 billion participants. Additionally, approximately 109,200 specialized science and technology exhibitions were organized nationwide, drawing 480 million visits. In a significant move toward institutional transparency and public access, 9,680 research institutions and universities opened their facilities to public tours, receiving over 24.95 million visits throughout the year.

    These developments highlight China’s strategic emphasis on enhancing public scientific literacy through multidimensional approaches including infrastructure development, financial investment, workforce expansion, and diverse public engagement initiatives.

  • Last year was wetter and warmer in China

    Last year was wetter and warmer in China

    China witnessed unprecedented climate patterns throughout 2025, characterized by record-breaking warmth and increased precipitation levels nationwide. According to the recently released China Climate Bulletin (2025), the country’s annual average temperature reached 10.9°C, matching the previous record set in 2024 and standing 1°C above the 1991-2020 baseline. This places both years as the warmest since comprehensive meteorological records began in 1951.

    The warming trend manifested most dramatically through prolonged heatwaves that affected extensive regions of central and eastern China from late June through early September. The number of high-temperature days across the nation surged to unprecedented levels, establishing new historical records.

    Precipitation patterns showed significant deviation from historical norms, with annual rainfall exceeding long-term averages by 4.5%. The summer months brought particularly intense weather activity, as frequent rainstorms triggered severe flooding across northern China. Between late July and early August, North China experienced rainfall of both exceptional duration and volume during its rainy season, while western regions recorded their heaviest autumn precipitation in history.

    Tropical cyclone activity intensified markedly, with both typhoon formation and landfall numbers surpassing seasonal averages. An unusual sequence of five consecutive typhoons made landfall or significantly affected southern China between September and October.

    While meteorological drought conditions remained generally mild nationwide, regional water shortages emerged in southern China and along the middle and lower Yangtze River reaches, where consecutive winter and spring droughts developed. The year also saw increased wind intensity, with strong wind days reaching their highest frequency since 1991. Sandstorm activity intensified during spring months, though the season’s first sandstorm event occurred later than typical timing.

    National Climate Center Deputy Director Gao Rong attributed these complex weather variations to multiple interacting atmospheric and oceanic factors across different timescales. Key influences included the early northward movement and subsequent retreat of the subtropical high-pressure system, a robust East Asian summer monsoon, and intensified rainstorm patterns across northern and northeastern regions.

    Despite these extreme weather events, vegetation growth during the 2025 growing season reached its highest level this century, particularly in western Northeast China and central-eastern Inner Mongolia.

    Looking ahead, meteorological authorities have issued specialized forecasts for the upcoming Spring Festival travel period. National Meteorological Center Deputy Director Huang Zhuo indicated that a potent cold air mass will affect central and eastern China from February 5-7, bringing widespread strong winds and temperature declines of 4-8°C, with some regions experiencing drops exceeding 10°C. Additional precipitation events are expected between February 10-13, potentially affecting transportation networks during peak travel periods. A subsequent cold air process is forecast for the early Spring Festival holiday period from February 15-23. The China Meteorological Administration will provide daily weather briefings throughout the travel season to assist public planning and safety.

  • Polar bears bulk up despite melting Norwegian Arctic: study

    Polar bears bulk up despite melting Norwegian Arctic: study

    In a remarkable ecological paradox, polar bears inhabiting Norway’s Svalbard archipelago have demonstrated unexpected resilience to climate change by actually increasing their body mass despite significant habitat degradation. Published in Scientific Reports, the comprehensive study reveals these Arctic predators have adapted their feeding strategies to survive in rapidly changing conditions.

    The Barents Sea region has experienced among the most dramatic temperature increases globally, with some areas warming by up to 2°C per decade since 1979. This accelerated warming has caused sea ice habitats to vanish at twice the rate observed in other polar bear territories, losing approximately four days of ice coverage annually. Yet contrary to scientific predictions, the local bear population has not only maintained but enhanced its physical condition.

    Researchers from the Norwegian Polar Institute conducted detailed analysis of 770 adult bears over a 24-year period (1995-2019), measuring body condition indices to track fat reserves. The findings revealed a surprising trend: after initial declines until 2000, bear fitness metrics showed consistent improvement despite accelerating ice loss.

    The secret to their success lies in dietary adaptation. With reduced access to their traditional seal hunting grounds, Svalbard’s polar bears have increasingly turned to land-based prey including reindeer and walrus calves. These alternative food sources have become more abundant due to successful conservation efforts and reduced human exploitation. Additionally, warmer temperatures have concentrated ringed seals into smaller ice areas, making hunting more efficient where ice remains.

    Lead researcher Jon Aars acknowledged the counterintuitive nature of these findings: ‘The increase in body condition during significant sea ice loss was unexpected. Had I been asked to predict outcomes in 2003, I would have anticipated skinnier bears.’

    The study highlights critical regional variations in climate impact responses, cautioning against extrapolating findings from other Arctic areas where polar bears have indeed suffered nutritional stress. While currently thriving, scientists warn this adaptation may represent a temporary reprieve rather than long-term salvation, as continued habitat degradation will eventually overcome even these remarkable adaptive capabilities.

  • Abu Dhabi researchers develop nanotechnology for better cancer detection, treatment

    Abu Dhabi researchers develop nanotechnology for better cancer detection, treatment

    Scientists at NYU Abu Dhabi have engineered a groundbreaking nanotechnology platform that significantly enhances both cancer detection and treatment methodologies. This innovative approach centers on photothermal therapy, an emerging technique that utilizes light energy to generate localized heat within tumors, effectively destroying malignant cells while preserving healthy tissue.

    The research team developed uniquely designed nanoparticles constructed from hydroxyapatite—a naturally occurring mineral in human bones and teeth—ensuring biocompatibility and biodegradability. These nanoparticles are engineered to transport a specialized dye that activates upon exposure to near-infrared light. This specific light wavelength was strategically selected for its superior tissue penetration capabilities, enabling treatment of deeper tumors previously inaccessible to surface-level therapies.

    A critical advancement lies in the nanoparticle’s surface engineering, where lipid and polymer coatings enable extended bloodstream circulation while evading immune detection. This design dramatically improves tumor accumulation compared to previous photothermal agents. Additionally, the nanoparticles feature pH-responsive peptides that activate specifically in the acidic microenvironment of tumors, facilitating selective cancer cell entry while minimizing impact on healthy tissue.

    The integrated system provides dual functionality: upon near-infrared activation, the nanoparticles generate precise thermal destruction of tumor tissue while simultaneously producing real-time fluorescent and thermal imaging signals. This allows clinicians to visualize tumors and monitor treatment efficacy during therapeutic procedures.

    Professor Mazin Magzoub, the study’s senior author and associate biology professor at NYUAD, emphasized the transformative potential: “Our platform merges targeted treatment and diagnostic imaging within a single, biodegradable system. By overcoming fundamental delivery challenges, we’re advancing toward more precise cancer interventions with reduced side effects.”

    This research represents a substantial leap forward in nanomedicine, offering a promising alternative to conventional cancer treatments like chemotherapy and radiation by minimizing systemic toxicity while improving therapeutic precision.

  • China records markedly warm and wet climate conditions in 2025

    China records markedly warm and wet climate conditions in 2025

    China experienced unprecedented climate conditions throughout 2025, characterized by record-breaking warmth and significantly increased precipitation patterns, according to the authoritative China Climate Bulletin (2025) released by the China Meteorological Administration and National Climate Center.

    The comprehensive report reveals the national average temperature reached 10.9°C, matching 2024’s record and exceeding the 1991-2020 average by a full degree Celsius. This temperature parity establishes both years as the warmest since comprehensive meteorological record-keeping began in 1951. The frequency of high-temperature days similarly achieved unprecedented levels, with extended heatwaves affecting central and eastern regions from late June through early September.

    Precipitation patterns demonstrated notable increases, with annual rainfall volumes exceeding long-term averages by 4.5%. Northern China experienced particularly severe flooding during summer months, especially between late July and early August, due to intensified rainstorm activity. Gao Rong, Deputy Director of the National Climate Center, confirmed that North China’s rainy season reached historic peaks in both duration and total precipitation volume, while western regions recorded their most substantial autumn rainfall in meteorological history.

    Typhoon activity surpassed normal parameters, with both formation frequency and landfall incidents exceeding seasonal averages. Five consecutive typhoons made landfall or significantly affected southern China between September and October, creating compounded weather challenges.

    While meteorological drought conditions remained generally mild nationwide, specific regions experienced pronounced seasonal dryness. Southern China and the Yangtze River’s middle-lower reaches endured consecutive winter and spring drought periods. Cold air movements remained relatively subdued overall, though cold wave events occurred more frequently than typical patterns. Spring sandstorm activity intensified, with the inaugural annual sandstorm event occurring later than historical averages.

    Gao Rong attributed these complex weather variations to multifaceted atmospheric and oceanic interactions across multiple timescales, emphasizing the early northward movement and subsequent retreat of subtropical high-pressure systems combined with an intensified East Asian summer monsoon.

    The climate conditions produced significant societal impacts: heating-related energy consumption decreased across northern provinces during winter months, while cooling demand surged nationally during extended summer heat. Vegetation growth during the growing season reached its highest level this century, particularly in western Northeast China and central-eastern Inner Mongolia.

    The China Climate Bulletin, published annually since 1994, serves as a critical reference for governmental decision-making and public climate education, providing comprehensive analysis of major weather events and their socioeconomic implications.

  • Polar bears on Norwegian islands ‘fatter and healthier’ despite ice loss

    Polar bears on Norwegian islands ‘fatter and healthier’ despite ice loss

    In a remarkable ecological paradox challenging scientific expectations, polar bears in Norway’s Svalbard archipelago have demonstrated significant improvements in body condition despite accelerating sea ice loss driven by climate change. Published in Scientific Reports, comprehensive research conducted by the Norwegian Polar Institute between 1992-2019 documented surprising physiological adaptations among the region’s apex predators.

    Researchers meticulously assessed 770 adult polar bears during the 27-year study period, discovering that contrary to predictions, the animals had become substantially heavier and healthier despite the region losing approximately 100 ice-free days annually. This counterintuitive finding directly contradicts established understanding of polar bear ecology, as these mammals traditionally depend on sea ice as their primary hunting platform for capturing blubber-rich seals.

    Dr. Jon Aars, lead researcher at the Norwegian Polar Institute, expressed both surprise and cautious optimism: ‘The fatter a bear is the better it is. I would have expected to see a decline in body condition when the loss of sea ice has been so profound.’ The study reveals that Svalbard’s polar bears have developed adaptive hunting strategies, increasingly targeting land-based prey including reindeer and walruses to supplement their traditional seal-based diet.

    This dietary shift has been facilitated by Norway’s successful conservation efforts. Walruses, once hunted to near extinction in the 1950s, have rebounded significantly under official protection, creating an unexpected food source for resourceful bears. Additionally, researchers speculate that concentrated seal populations in diminishing ice areas may actually improve hunting efficiency for polar bears in certain circumstances.

    However, scientists emphasize this represents a temporary reprieve rather than a long-term solution. As Dr. John Whiteman, chief research scientist at Polar Bears International, notes: ‘Body condition is only one piece of the puzzle. Other recent research on these bears found that more ice-free days reduced survival in cubs and in subadult and old females.’

    The study highlights significant regional variations in climate change impacts across the Arctic’s 20 recognized polar bear subpopulations. While Svalbard bears currently thrive, the Western Hudson Bay population in Canada—among the most southerly and extensively studied groups—has experienced direct population declines correlated with warming temperatures.

    Experts conclude that despite this temporary adaptation, the fundamental reality remains unchanged: polar bears ultimately require sea ice for long-term survival. As ice loss continues unchecked across their range, researchers warn that these temporary gains will eventually give way to the broader pattern of climate-driven decline affecting most polar bear populations worldwide.

  • Chinese fossil find illuminates Earth’s earliest mass extinction

    Chinese fossil find illuminates Earth’s earliest mass extinction

    A groundbreaking fossil discovery in central China is transforming scientific understanding of Earth’s earliest mass extinction event that occurred approximately 513 million years ago. Researchers from the Nanjing Institute of Geology and Palaeontology at the Chinese Academy of Sciences (NIGPAS) have uncovered an extraordinary collection of ancient marine fossils that provides unprecedented insight into how life persisted through the catastrophic Sinsk extinction event.

    The Huayuan Biota, named after its discovery location in Hunan province, represents a treasure trove of exceptionally preserved soft-bodied organisms dating to about 512 million years ago—immediately following the devastating extinction that eliminated 41-49% of marine species. The discovery site, accidentally exposed during road construction in 2020, has yielded over 50,000 fossils to date, with preliminary analysis identifying 153 animal species, 59% of which are previously unknown to science.

    What distinguishes this find is the remarkable preservation quality, capturing delicate anatomical features including digestive systems, neural tissues, and gill structures in organisms ranging from primitive worms and jellyfish to early chordates. This level of detail provides scientists with an unprecedented window into a complete ancient ecosystem that flourished in deep-water environments while shallow marine habitats experienced catastrophic collapse.

    The research, published in Nature, demonstrates that the Sinsk extinction event—triggered by widespread ocean deoxygenation—disproportionately devastated sunlit, nearshore environments while deeper ocean zones served as crucial refuges where biodiversity persisted relatively unscathed. This differential survival pattern explains how marine life eventually rebounded from this planetary crisis.

    Additionally, the Huayuan Biota reveals surprising global connections, sharing numerous species with the renowned Burgess Shale formation in North America despite the vast oceanic separation between these continents during the Cambrian period. This suggests that certain marine organisms possessed unexpected dispersal capabilities across immense distances.

    International paleontologists have hailed the discovery as one of global significance, with the site’s diversity rivaling the world’s most celebrated fossil localities. According to NIGPAS researcher Zhu Maoyan, this finding not only illuminates a pivotal chapter in Earth’s evolutionary history but also provides valuable insights into ecosystem resilience and recovery mechanisms following planetary-scale disturbances.

  • Ultra-strong magnet sets world record

    Ultra-strong magnet sets world record

    Chinese scientists have achieved a monumental breakthrough in magnetic field technology by creating the world’s most powerful all-superconducting user magnet, registering an unprecedented central magnetic field strength of 35.6 tesla. This extraordinary achievement, accomplished at the Synergetic Extreme Condition User Facility in Beijing’s Huairou district, represents a magnetic force exceeding 700,000 times that of Earth’s natural magnetic field.

    The newly developed magnet stands as the globe’s sole superconducting apparatus capable of generating ultra-strong magnetic fields beyond 30 tesla specifically designed for scientific experimentation. This technological marvel distinguishes itself through its open-access architecture, enabling both domestic and international research teams to conduct cutting-edge material investigations under extreme experimental conditions.

    Superconducting magnet technology offers revolutionary advantages including zero electrical resistance, exceptional operational stability, and significantly reduced energy consumption when maintained at cryogenic temperatures. These characteristics make such instruments vital for advanced scientific infrastructure, medical imaging applications, and national defense technologies.

    The record-breaking performance was realized while maintaining a substantial 35-millimeter bore diameter, achieved through groundbreaking innovations in core technologies. The Institute of Electrical Engineering at the Chinese Academy of Sciences spearheaded revolutionary advances in magnet design and construction methodologies, while their counterparts at the CAS Institute of Physics conquered challenges related to precision measurement and system integration under extreme environmental conditions.

    According to CAS academician Wang Qiuliang, the current bore dimensions adequately accommodate most experimental requirements including nuclear magnetic resonance studies, specific heat measurements, and electrical resistance assessments. Research initiatives are already underway to expand the magnet’s bore diameter to support an even broader spectrum of measurement techniques.

    Professor Luo Jianlin from the Institute of Physics emphasized the significant operational cost advantages of all-superconducting magnets compared to conventional resistive magnets, noting that superconductors eliminate energy loss through their zero resistance properties. Future development plans target surpassing 40 tesla magnetic field strength while enhancing the refrigeration capacity of liquid helium systems to reduce long-term maintenance costs for ultra-low temperature environments.

  • Australian astronomers discover potentially habitable ‘Earth-like’ planet 150 light years away

    Australian astronomers discover potentially habitable ‘Earth-like’ planet 150 light years away

    An international research team spearheaded by Australian astronomers has announced the identification of a promising Earth-sized exoplanet candidate located approximately 150 light-years from our solar system. The discovery, detailed in a recent publication in The Astrophysical Journal Letters, marks a significant milestone in the ongoing search for habitable worlds beyond our own.

    Designated as candidate HD 137010 b, this celestial body exhibits remarkable similarities to Earth in both physical dimensions and orbital characteristics. It completes a revolution around its host star, which closely resembles our Sun, every 355 days—just 10 days shy of an Earth year. Despite occupying an orbital distance comparable to Earth’s position relative to the Sun, the exoplanet receives approximately 70% less stellar radiation, resulting in considerably cooler surface conditions.

    The research collaboration, led by Dr. Alexander Venner from the University of Southern Queensland, utilized observational data from NASA’s extended Kepler K2 mission conducted in 2017. While initial findings position HD 137010 b near the outer boundary of its star’s habitable zone—where liquid water could theoretically exist—preliminary temperature estimates suggest surface conditions may plummet to approximately -70°C in certain regions, creating a climate more analogous to Mars than Earth.

    Dr. Chelsea Huang, a co-researcher from the University of Southern Queensland, characterized the discovery as ‘genuinely thrilling’ in statements to the ABC, emphasizing that while this isn’t Earth’s identical twin, it represents meaningful progress toward that ultimate astronomical goal. The scientific team currently estimates a 50% probability that the candidate planet might support habitable conditions.

    As the celestial body has only been observed transiting its star on a single occasion, researchers have classified it as a ‘planet candidate’ pending verification through subsequent observational campaigns. The relative brightness of the host star enables comprehensive follow-up studies that could confirm the planet’s status and further elucidate its atmospheric properties and potential for hosting life.

  • Google unveils AI tool probing mysteries of human genome

    Google unveils AI tool probing mysteries of human genome

    Google DeepMind has launched AlphaGenome, a groundbreaking artificial intelligence system designed to interpret the complex regulatory language of the human genome. This deep learning model represents a significant advancement in genomic research, potentially accelerating the discovery of treatments for genetic disorders.

    According to Pushmeet Kohli, Vice President of Research at Google DeepMind, while the 2003 mapping of the human genome provided ‘the book of life,’ interpreting its contents remained profoundly challenging. ‘We have the text—a sequence of three billion nucleotide pairs—but understanding the grammar of this genome represents the next critical frontier,’ Kohli explained during the announcement.

    The technology specifically targets non-coding DNA, which constitutes approximately 98% of the human genome. Once dismissed as ‘junk DNA,’ this genetic material is now understood to function as a regulatory conductor, directing how genetic information operates within cellular structures. These sequences contain numerous variants associated with diseases that have previously eluded comprehensive analysis.

    AlphaGenome distinguishes itself through its ability to process exceptionally long DNA sequences—up to one million nucleotides—while maintaining high resolution predictions. The model analyzes how each nucleotide pair influences biological processes, including gene activation and RNA production. This capability allows researchers to compare mutated and non-mutated sequences, providing unprecedented insight into genetic disease mechanisms.

    Trained on public datasets measuring non-coding DNA across hundreds of human and mouse cell types, AlphaGenome builds upon Google’s established scientific AI work, which includes the Nobel Prize-winning AlphaFold protein structure prediction system. The tool is already being utilized by 3,000 researchers across 160 countries and remains openly accessible for non-commercial scientific investigation.

    Independent researchers have acknowledged the model’s transformative potential while noting limitations. Ben Lehner of Cambridge University confirmed the system ‘performs very well’ but emphasized that AI models remain constrained by training data quality. Robert Goldstone of the Francis Crick Institute noted that while environmental factors influencing gene expression fall outside the model’s scope, AlphaGenome nevertheless represents a ‘breakthrough’ for simulating genetic disease foundations.