In Australia, water can be a scarce commodity, with variousareas of the country suffering through prolonged droughts at times. This is done by firing small particles (usually silver iodide) into clouds. Cloud seeding is usually carried out by sprinkling particles from a plane. This is done by firing small particles (usually silver iodide) into clouds . Centrelink jobseeker overhauled with new 'point-based system' . The United Arab Emirates is creating its own rain using drones that fly into clouds and unleash electrical charges to beat the sweltering 122 degrees Fahrenheit (50 degrees Celsius) heat. Cloud seeding was first trialled in Australia in 1947 when the CSIRO got up in a light plane and released crushed dry ice into promising-looking clouds. Another added: 'Absolutely nothing natural about the rainfall in the past 5 months. Cloud seeding can use either ground based generators and / or aviation for operations. Cloud seeding is the process of artificially generating rain by implanting clouds with particles such as silver iodide crystals. Its no wonder then that several 'cloud seeding' (rain-making) experiments have been conducted in Australia. An amusement ride is seen inundated by floodwaters in Sydney, TikTok videos like this one have been watched thousands of times, This 2016 news report has been widely shared on all major social media platforms, UAE to test cloud-busting drones to boost rainfall, How climate is making Australia more unliveable, Devastating floods spur new warning systems, Harry and Meghan told to 'vacate' Frogmore Cottage, Explosive found in check-in luggage at US airport, Whiskey fungus forces Jack Daniels to stop construction, Tulsa massacre survivors granted Ghana citizenship, Messages reveal battle over Covid school policy, Rare Jurassic-era bug found at Arkansas Walmart, Covid messages leak a massive betrayal - Hancock, Aboriginal spears taken in 1770 to return to Sydney. On social media, they blame the extreme rainfall on "cloud seeding" and "weather manipulation". NOTE: Dry ice used for cloud-seeding = solid carbon dioxide = CO2. in response calling the claims misinformation and denying that it conducts cloud seeding flights, stating that it only operates an aerial photography aircraft. Property damage. Experts said that the floods in Australia were naturally occurring and cloud seeding cannot cause flooding. Discover special offers, top stories, The height of the Mary River at Gympie goes from 12m at 10am to 19m by midnight. Water vapor in the atmosphere can then adhere to the particles, and condense into raindrops or snowflakes. The fact that the damage and loss of life were so great this time is due to the fact that many more people live in . The area of cooler air in the upper atmosphere drifts into the low pressure trough and starts to deliver record-breaking downpours over Brisbane and its surrounds. Prime inner-city areas including much of the South Bank precinct are underwater. There's no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. The term 'rain bomb' was coined by Daily Mail Australia in 2017 to describe sudden and intense rainstorms, and has since been picked up by politicians and even the Bureau of Meteorology. Today, that endeavor is making . AN AUSTRALIAN AVIATION company says it has received more than 100 threats following an online conspiracy theory that its pilots unleashed a flooding disaster by cloud seeding. Commonly called "chemtrails" this "cloud seeding" is picking up in pace. And yet, this myth seems to have found an audience on various social media platforms. THE FACTS: In recent months, Australias southeastern coast has experienced some of its, in more than a decade, leading some social media users to highlight a previous instance of flooding and spread false theories about what caused, Twitter users are sharing a clip from a 2016 news broadcast about flooding in Tasmania to claim it proves that. Queensland Premier Annastacia Palaszczuk has expressed her concern over the impact of the floods as the state is inundated by rain. Some areas that flow into the river have had 300mm of rain in just six hours. Published: 00:57 EDT, 31 March 2022 | Updated: 00:57 EDT, 31 March 2022. It will initiate from the thin water layer formed on the surface of the ice nuclease, and the ice will grow rapidly at the expense of the water vapor in the cloud. Get in touch. Source: Snowy Hydro. Ben Domensino, a meteorologist at Weatherzone, says the low pressure trough is delivering the rainfall but an area of colder air higher in the atmosphere is drifting in, making the atmosphere unstable and allowing moisture to be lifted up and dropped as rain. March 28, 2022. The first three months of 2022 brought a year's worth of rain to Sydney. In Australia, a La Nia increases the likelihood of rain, cyclones, and cooler daytime temperatures. customer-service@technologyreview.com with a list of newsletters youd like to receive. Covid origin likely China lab incident - FBI chief. Is that correct? Australia's 2022 floods have seen Brisbane's Southbank hit by a 'rain bomb'. The 2022 eastern Australia floods were one of the nation's worst recorded flood disasters with a series of floods that occurred from February to April in South East Queensland, the Wide Bay-Burnett and parts of coastal New South Wales. We are looking forward to moving the seeding materials from laboratory to the commercial venture for not only cloud seeding applications, but wider applications, such as different weather modification efforts, including agriculture or crop protection, hail, or storm suppression, and the artificial snow making at the ski resort. Climatology and Geophysics Agency BMKG said the great flood that hit Jakarta in early 2020 was "one of the most extreme rain events" since . The conventional cloud seeding material can only be activated at a very high relative humidity in atmosphere in the cloud, such as greater than 75% relative humidity. The United Arab Emirates have been hit particularly hard by this season's sweltering heat, recording a 51.8C this June (that . Silver Iodide is safe to use in cloud seeding operations because it is found naturally in the atmosphere, soil and sediments of the Snowy Mountains region. , first developed in the 1940s, involves spraying fine particles of silver iodide and dry ice into a cloud system. Not since Charlemagne was crowned . So it has a huge possibility to improve its efficiency. If you think a claim has been misjudged or requires correction, please send us evidence to support your error claim. In the U.S., studies have found a few percentage points of increase in precipitation. CORRECTION: We have added an additional source relating to cloud seeding that debates its harmless nature. Experimental cloud seeding technology does actually exist and has been used in places like China and the UAE. After cloud seeding activities were carried out to bring precipitation, some parts of China's Chongqing welcomed long-awaited rains recently, but experts warned that the city and the region should prepare for possible flooding and landslides. Dr. Zou: As we know, the global water shortage has continuously intensified by rapid population growth and economic development around the world. Clouds can be seeded from the ground using silver iodide generators. Often, a compound like Silver Iodine (AgI) is used as the particulate matter, as it is naturally occurring in the world in low concentrations. In my project, we have changed the surface of the material to make it more reactive so it can work at a lower and wider relative humidity to make it more likely to happen. A record-breaking and relentless deluge that lasted days and flooded towns and cities along Queenslands south-east coast, submerging thousands of homes and leaving at least nine people dead. Since the 1940s, scientists have studied ways to increase rainfall with the goal of increasing precipitation in arid and semi-arid climates. You took this on as part of your research. Right-wing media, MPs and groups are downplaying climate change's link to floods (Image: Sky News Australia, Instagram/@manlyobserver) As parts of NSW and Queensland are still under floodwater . Singapore should also build more drainage canals to effectively reduce the occurrence of . Through a reverse image search, we found that 7News Melbourne posted the original broadcast on their Facebook page on June 10, 2016, with the caption: "Residents in southern Tasmania want to know why cloud seeding was conducted the day before severe flooding hit the region." Social media users are also sharing a separate example to baselessly claim that cloud seeding played a role in flooding that happened throughout February and March in Queensland and New South Wales, leading to more than a dozen deaths. Because the process is random and uncertain, the form and size of the particle cannot be controlled and most are probably too small to be effective cloud seeding materials. At 10pm, Seqwater starts to release some of the water building up in Wivenhoe Dam. The natural occurring condensation nuclei are such as dust particles, volcano flash, or pollens. This means cloud seeding operations happen only during suitable cold weather systems, generally cold fronts between May and October. . Share. Cloud seeding involves modifying a cloud's structure to increase the chance of precipitation. Laurel: To successfully cloud seed, you need a number of things: the right air temperature, the right humidity, a surface that attracts water and keeps it, and then the correct size material to allow condensation to form on the particle. A dangerous and bizarre conspiracy theory is circulating that the devastating floods which have torn through Australia's . However, some research has raised doubts about its longterm effects on the environment. Some of the natural sources include bushfires, volcanoes and dust storms, while artificial sources of condensation nuclei include industry emissions and cloud seeding operations. 3 January 2020. Towards New Zealand, Domensino says, an area of high pressure known as a blocking high stops the system from moving away into the Tasman Sea. This data describing my new seeding materials property and their interactions in atmosphere. There is already local flooding from the intense and incessant rain that is interspersed with violent thunderstorms. Dr. Zou: The conventional cloud seeding materials include mostly hydroscopic salt mixture, which can change from salt crystals into water droplets at the right condition. You are also pursuing funding initiatives at this point too, for your research. This material may not be published, broadcast, rewritten, or redistributed. This episode was produced by Collective Next. Cloud seeding gives these clouds a lot more ice crystals (or cloud nuclei). 2023 BBC. To achieve this, we use the nanotechnology to deposit titanium dioxide nanoparticles as a shell layer and sodium chloride crystal core. Defence and National Security Intelligence. Hundreds replied to his post with comments claiming 'the government' was using experimental technology to carry out 'cloud seeding' - a weather modification process that theoretically alters the microphysical state of clouds, causing rain. A high tide on Sunday evening pushes the river higher as the rising ocean water effectively holds back the freshwater. The information and techniques are out of date and their effectiveness is not well understood. The previous record was 600.4mm in 1974. In the 1950s, another scientist named Bernard Vonnegut proposed his cloud seeding idea in which he noted that clouds need other particles like bacteria or algae to produce precipitation. A few decades later, the US military brought cloud-seeding to the battlefield. But there is no evidence to suggest cloud seeding has anything to do with the current rainfall in Sydney. An atmospheric research expert told The Associated Press that cloud seeding would not change the dynamics of a cloud enough to cause massive flooding. Fast forward to 2022 as Las Vegas, Nevada and the UAE are dealing with severe flooding which happened after acknowledged cloud seeding operations. Pictured: Local resident inspects floodwater in her street on March 31, 2022 in Lismore, NSW, Pictured: Debris from flood-damaged homes piles up in Lismore, NSW, Tuesday, March 29, 2022, Conspiracy theorist James Bartolo (pictured) claimsAustralia's east coast are part of a 'government weather warfare attack'. Most commonly used to increase precipitation as a drought management technique, cloud . Image: How cloud seeding works in the NSW Snowy Mountains. 'The Gold Coast and surrounds is currently under a government weather warfare attack,' he told his army of devoted followers. Snowy Hydro's Cloud Seeding Program boasts that it has been able to increase rain or snow by 14 percent over the colder months. One patent is filed on the titanium dioxide, sodium chloride material for warm cloud seeding, and another patent is filed for porous graphite oxide, silica dioxide, nano compensated for cold cloud seeding. In a 2016 news report from the Australian TV network 7News, the broadcasters discuss Tasmanians' worries that cloud seeding might have contributed to the state's worst floods in forty years. Seeding clouds as a way to change weather began its history as a serious science during WWII, originally as a way to interrupt severe storms or to produce rain and snow. This salt vapor then will recondense as very small particles. Despite the online claims, cloud seeding is not responsible for any of the east coast floods, said weather modification expert Simon Siems. Four police officers knocked down the former bodybuilder's door when he refused to open it, claiming they didn't have authorisation to be on the property. (Photo: Flooding in Loganlea, Queensland on Feb. 28, 2022. Through the advancement in nanotechnology and nanoscience, nowadays we are working to design and engineer cloud-seeding materials with optimal properties to ensure water vapor condensation will occur effectively and maximize the rainfall achieved, explains Dr. Zou. The flight was collecting images for aerial maps provided to Australian mapping company NearMap, he said. These particles act as additional condensation nuclei. Handel Aviation posted a statement in response calling the claims misinformation and denying that it conducts cloud seeding flights, stating that it only operates an aerial photography aircraft. Bartolo was handcuffed on his lounge room floor in a struggle seconds after the police broke inside. Theres no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. "They needed a shoulder to cry on and hear their story. One user even claimed that planes about 1,200km away from the epicenter of the floods might be to blame. Source: Snowy Hydro. Of these four experiments, the Snowy Mountains saw statistically significant increases in rainfall during the experiment. Australian National Review is Australia's first real free and independent press, one with no editorial control by the elite, but a publication that can generate critical thinkers and critical debate and hold those . Pilots get "really violent" threats after online rumors wrongly pin devastating floods on cloud seeding. About as much as eight months' worth of rain has come down in just four days, bringing parts of Australia's largest city to a standstill. The amount of snow or rain tied to cloud seeding has varied, with up to 14% reported in experiments in Australia. EPA. Figure 1: The area which is primarily targeted for increased precipitation from cloud seeding operations is shown in red (approximately 2110 km). Weather and cloud-seeding experts say it is impossible for the rain-making technology to work on such a large scale, and the incessant downpours are due to a La Nina weather system - a fact that . Australia 05:57 31 Mar 2022 . At the moment, all possible solutions that could resolve the water shortage issue should be examined carefully. Some of those he contacted were surprised or angry, Berko said. This has been an absolute, fantastic conversation. AP'S ASSESSMENT: False. Resources: https: . There are up to 15,000 homes flooded in the city, with 1,544 people in evacuation centres in the south-east. They've basically lost everything and then someone has then said here's your answer," Berko said. Although cloud seeding has been around since the 1940s, climate change and population growth are driving scientists to take a closer look at the technology, which could offer a viable cost-effective supplement to existing water supplies, particularly in arid and semi-arid regions, like the United Arab Emirates. An independent investigation sought by Tasmanias parliament into the causes of the 2016 flooding found that cloud seeding, a process aimed at increasing precipitation, had no impact on the severe weather. They are made of many super cooled water vapors, so although they are below zero, they remain as vapor. Immediately after the seeding is released, the electronic equipment, which are electronic optical cameras, will quickly take many, many photos to record the image while the seeding material's falling. The damage was much worse than predicted. For the third time this year, Sydney has been hit by major floods. Multiple posts on Facebook - as seen here, here and here - attempt to link Australia's floods with cloud seeding and possible government manipulation of the weather. On Tuesday morning evacuation orders are issued for South Ballina. Trains are cancelled, bus services limited, the main Bruce Highway is closed at multiple locations and 51,000 people are without power. The river peaks overnight at the major flood level of 3.5m, falls slightly after the high tide, and goes higher to eventually peak on Monday at 3.85m below the 2011 peak of 4.46m. This stored water can help ensure renewable energy generation and downstream water availability during future drier years, when inflows are lower. Conspiracy theorists spread the false claims on social media after weeks of torrential rains led to deadly east coast floods over the past two months, engulfing homes and sweeping cars from the roads. Welcome, Dr. Zou. The language they are using such as "rain bombs" is clear enough for me,' a commenter said. Cloud seeding is used in parts of Australia to enhance rain, snowfall and water security. As floods devastated Australia's east coast, social media posts accused a pilot of causing the disaster through cloud seeding, a weather modification technique that involves dropping a rain-inducing chemical into clouds. But experts say the flooding has been worsened by climate change and a La Nia weather phenomenon. CLAIM: A rain-enhancing process known as cloud seeding caused historic flooding in Tasmania, Australia, in 2016 and along Australia's southeastern coast this year. But a probe by the Tasmanian government found that cloud seeding did not contribute to or worsen the heavy rains - a conclusion since backed by independent scientists and experts. CBS News reported on April 8 that many Australian pilots and aviation companies received threats regarding false claims on social media about cloud seeding. 'It is very obvious. >$379 million (2022 USD) [1] Heavy flooding broke out in the Central Coast and Sydney areas of New South Wales, Australia, beginning in early July 2022. Second, having the efficient seeding material for water droplet formation. Why doesn't Australia use the cloud seeding method? There's no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. 15 February 2014. Conspiracy theorists claim the floods devastating Australia's east coast are a 'government weather warfare attack' triggered by 'chemtrails' James Bartolo, former Melbourne anti-lockdown leader . Smart Cities World Forum. Somerset Dam, that can feed Wivenhoe, also starts to rapidly fill, going from 80% to 148% in one day. Dr. Zou's research interests include applying nanotechnology and membrane science to the development of low energy and high efficiency novel desalination and water purification solutions. The floods have once again turned deadly, with the body of a man swept away by floodwaters in Queensland found by police this morning, bringing the state's death toll to 19 since January. That hasn't stopped some TikTok users from denouncing "weather engineering". Since the 1940s, scientists have studied ways to increase rainfall with the goal of increasing precipitation in arid and semi-arid climates. Is that correct? Cloud seeding aims to protect flood-hit Jakarta. A look at aerial and ground-based cloud seeding techniques. The increased snowfall can also benefit ski resorts within the cloud seeding areas. For one of the planes, only the nose and part of the propeller are visible, and the photograph appears to have been . But Khan says the Brisbane flooding could easily have been much worse. Laurel: Cloud seeding is a form of weather modification that mimics what naturally occurs in clouds but enhances the process by adding particles that can stimulate and accelerate the condensation process. Read about our approach to external linking. They vary in size. The report did not find evidence to prove that the cloud seeding flight contributed to the flood. Greta Thunberg joins activists' protest against a wind farm in Norway, Stronger hurricanes threaten homes even away from the coasts, Venice canals run dry as lingering weather system impacts tide cycles, Climate change is making winter weather warmer and "weirder". Electric vehicles have been available for decades. History of cloud seeding in Australia 7.5 Americans made the discovery in 1946 that pellets of dry ice could induce precipitation from clouds. A rain-enhancing process known as cloud seeding caused historic flooding in Tasmania, Australia, in 2016 and along Australias southeastern coast this year. Wivenhoe has never dealt with that volume of water but it was lucky it was down at 60% at the start. In just four days, the equivalent of eight months' worth of rain fell, paralysing certain areas of Australia's largest city. Dr. Zou: Yes. Dr. Zou: It is a challenge area and I have collaborated with the Cloud Microphysics Modeling International team. Bartolo's move to Gold Coast came after getting arrested in a dramatic police raid in Melbourne in September 2020. The flight path of the Handel Aviation aircraft VH-JIL criss-crossing over flooded areas was also shared online by Australian fashion designer Alice McCall alongside claims it was dropping chemicals to "activate rain.". This is part of APs effort to address widely shared misinformation, including work with outside companies and organizations to add factual context to misleading content that is circulating online. We wont run out of key ingredients for climate action, but mining comes with social and environmental ramifications. Steven Siems, from Monash University's School of Earth Atmosphere and Environment, is a cloud expert. We will revisit our evidence and verdict and conduct additional research to verify new information. Mass Floods and Australia's High-Speed Rail. What kind of effect can cloud seeding potentially have on a country, like the UAE, which typically only records four inches of rain in a year? Water vapour gathers around the particles and eventually falls as precipitation. It was not written by MIT Technology Reviews editorial staff. Hydro Tasmania, a hydroelectric corporation, published their analysis after the flood to say that a cloud seeding flight was undertaken on June 5, 2016, which had no measurable impact on rainfall. Conversely, she said cloud seeding would not dramatically worsen clouds that are already forecast to produce severe weather. Laurel: Although cloud seeding has been around for decades, how does today's technology move it toward a greater success rate? Cloud seeding programs in the upper Colorado River Basin, for instance, cost around $1.5 million each year. Brisbane suffered major flooding, along with the cities of Maryborough, Gympie, the Sunshine Coast, Caboolture, Toowoomba, Gatton, Ipswich, Logan City, the . It has been used in Australia intermittently since 1947. Laurel: In the past, one of the challenges scientists encountered when researching cloud seeding was the lack of a simulation environment. Torrential rain hovers over the Brisbane region, feeding Wivenhoe Dam but also filling major rivers like the Bremer that winds through Ipswich and the Lockyer Creek. In Gympie, the towns central business district is inundated. That aircraft was capturing images of the flood damage at the time, according to the statement. Theres a small one, a medium one, and a large one. Bureau of Meteorology, Australia (@BOM_au) February 26, 2022 About 18,000 homes in Brisbane and surrounding areas have been flooded and more than 50,000 are without power. UAE is in the arid climate zone, and the government has already taken the initiative of this UAE research program for re-enhancement science. Cloud seeding is an artificial weather modification technique that involves introducing cloud condensation nuclei into the atmosphere, which enhances a clouds ability to produce rain and snow. We designed and fabricated a porous nanocomposite of 3D reduced graphite oxide and silica dioxide nanoparticles. A six-year study that Wyoming conducted from 2008 to 2013 among the most ambitious done thus far estimated that cloud seeding can boost precipitation within seedable clouds by about 3.3 . 'Cloud seeding is being used to increase rainfall by corrupt governments to act on mother nature. If you continue to get this message, We only operate aircraft fitted with cameras for aerial photography survey purposes and we are not sure where this misinformation has started, Handel Aviation posted on its website, adding, our recent flights over flooded areas of NSW and QLD are in response to the floods. New video piece available now! That is about three Sydney Harbours worth of water. Scientists blame intense rainfall on a . Apr 22, 2022. A La Nia develops when strong winds blow the warm surface waters of the Pacific away from South America and towards Indonesia. On the other hand, I am also dedicated to the scale up of the production, reduce the cost, and the application of the materials. Conspiracy theorists claim the motive for 'elites' carrying out a 'weather attack', which have seen communities around Byron Bay and Lismore underwater is to move people into 'smart cities'. Wivenhoe Dam Brisbanes main source of water and also a key piece of infrastructure to stop the city flooding starts rising rapidly from 58% capacity. There is devastation in northern NSW as Wilsons River rises two metres above previous flood records, inundating the town of Lismore. NSW's Snowy Mountains region. The photograph shows two Royal Australian Air Force (RAAF) DC-3 planes flying above some cumulus clouds. My guest today is Dr. Linda Zou, who is a professor of civil and environmental engineering at Khalifa University of Science and Technology. What are you working on now, and what are you thinking about next? Mit technology Reviews editorial staff ; point-based system & # x27 ; structure. Appears to have been & # x27 ; t Australia use the cloud seeding has used... 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