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Business Standard
12-05-2025
- Science
- Business Standard
China boosts Xinjiang rainfall using 1 kg silver iodide and cloud drones
Chinese scientists used cloud seeding drones and just 1 kg of silver iodide to add over 70000 cubic metres of rainfall in Xinjiang enough to fill 30 Olympic-sized swimming pools Boris Pradhan New Delhi China boosts Xinjiang rainfall using 1 kg silver iodide and cloud drones Boris Pradhan New Delhi Chinese scientists have successfully boosted rainfall by over 4 per cent in Xinjiang using a fleet of cloud seeding drones, The South China Morning Post reported on Monday. The researchers have published the findings from a weather modification experiment in Xinjiang, a dry region in western China, in a peer-reviewed paper. Using a fleet of cloud seeding drones, the operation boosted rainfall by more than 4 per cent across an area exceeding 8,000 sq km in a single day, according to the team led by Li Bin, a senior engineer at the China Meteorological Administration (CMA). The effort produced over 70,000 cubic metres of extra rainfall — enough to fill 30 Olympic-sized swimming pools at 2 metres deep — by deploying just 1 kg of silver iodide, a common cloud-seeding substance. This amount of powder, which is six times denser than water, is small enough to fit in a travel mug. The CMA's key laboratory for cloud-precipitation physics and weather modification in Beijing conducted the test, described in a peer-reviewed paper published in the Chinese-language journal Desert and Oasis Meteorology on 10 April. What is cloud seeding? Cloud seeding is a method of weather modification aimed at increasing rainfall by dispersing substances into the atmosphere that encourage cloud saturation. The process begins with identifying suitable clouds using weather data and tools like aircraft or ground-based systems. Once identified, substances known as seeding agents are released into these clouds. These agents help form larger water droplets by acting as nuclei, eventually resulting in enhanced precipitation. Common seeding materials include salts like silver iodide, potassium iodide, sodium chloride and dry ice (solid carbon dioxide). These compounds serve as the "seeds" around which moisture in the cloud condenses, promoting the development of raindrops. Cloud seeding not feasible in Delhi: CPCB Last year, the Central Pollution Control Board (CPCB) stated that the feasibility of cloud seeding as an emergency measure to fight Delhi's severe air pollution crisis would be limited. The CPCB has stated that cloud seeding faces significant challenges due to insufficient moisture in the air and the dependency on pre-existing clouds influenced by Western Disturbances. Delhi Environment Minister Gopal Rai had floated the idea several times to his Union counterpart Bhupender Yadav. The CPCB shared its observations on a cloud seeding proposal by IIT Kanpur. The information was shared in response to a Right to Information query filed by activist Amit Gupta.
Daily Express
09-05-2025
- Business
- Daily Express
Nature Coffee puts Sabah on the map at China's Smoke and Fire Coffee Festival
Published on: Friday, May 09, 2025 Published on: Fri, May 09, 2025 Text Size: Chiew presents a souvenir to Tongmeng Ancient Town Marketing Operations Director Li Bin, accompanied by Lee. KOTA KINABALU: Nature Coffee from Sabah made the country proud as it was the sole international brand invited to be featured in the Smoke and Fire Coffee Festival held in Tongmeng Ancient Town, Huojia County, Zhengzhou. The event, embracing the 'early coffee, late alcohol' lifestyle trend among China's youth, gathered over 40 coffee brands from cities including Beijing, Shanghai, and Chengdu for tastings, sales, and workshops. Nature Coffee, co-founded by Sabah China Chamber of Commerce vice-president Chiew Heng Hock and vice-chairman Dick Lee, used the opportunity to showcase Sabah's unique Catimor variety and foster international collaboration across the coffee supply chain. Visitors were treated to the rich, complex aroma of Sabah-grown beans, with notes of popcorn, genmaicha, and grapefruit, offering both a sensory and cultural exchange experience. The festival coincided with the May Day holiday and featured concerts, traditional performances, local delicacies, and cultural crafts, creating a lively atmosphere that celebrated coffee and Chinese heritage. * Follow us on Instagram and join our Telegram and/or WhatsApp channel(s) for the latest news you don't want to miss. * Do you have access to the Daily Express e-paper and online exclusive news? Check out subscription plans available. Stay up-to-date by following Daily Express's Telegram channel. Daily Express Malaysia
South China Morning Post
04-05-2025
- Science
- South China Morning Post
China's weather modification test: cup of cloud seed makes 30 swimming pools of rain
Chinese government scientists have released the results of a weather modification experiment in the dry western region of Xinjiang. Advertisement A fleet of cloud seeding drones increased rainfall by over 4 per cent across more than 8,000 sq km (3,089 sq miles) in a day, according to the project team led by Li Bin, senior engineer with the China Meteorological Administration. The operation generated more than 70,000 cubic metres (18.5 million gallons) of additional precipitation – enough to fill 30 Olympic-sized 2 metre-deep (6.5 feet) swimming pools – using 1kg (2.2 Ibs) of silver iodide, a common cloud-seeding compound. Such an amount of silver iodide powder, six times the density of water, can barely fill a travel mug. The test, led by the CMA's key laboratory of cloud-precipitation physics and weather modification (CPML) in Beijing, was detailed in a peer-reviewed paper published in Chinese-language journal Desert and Oasis Meteorology on April 10. Advertisement
