Most research has found that AgI, when dispersed in cloud seeding, has no adverse health effects on the environment. Cloud seeding trials continued through the late 1950s and early 1960s by the CSIRO in the Snowy Mountains, in the New England district of NSW, the Warragamba catchment near Sydney and in the York Peninsula in SA. There's no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. Source: Snowy Hydro. Thousands of residents were ordered to leave their homes. What are conventional cloud seeding materials, and then how does nanotechnology come into play? Dr. Zou leads a groundbreaking research project using nanotechnology to develop cloud seeding materials. Scientists blame intense rainfall on a . Australia 05:57 31 Mar 2022 . Under NSW legislation, Snowy Hydro can only cloud seed when precipitation is likely to fall as snow to elevations below 1,400 metres. 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 . who leads the centers work on cloud seeding, told the AP that claims linking the process to flooding lack an understanding of how cloud seeding works. 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. This salt vapor then will recondense as very small particles. "We don't have a co-ordinated effort to change the weather, because it's just physically and financially unfeasible," says Dr Gilbert, who adds that even if cloud seeding played a role, it would have "an absolutely minuscule effect.". 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. One reason for the wetness is likely La Nia, which for the first time this century has returned for three consecutive years. 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. Leverage advanced weather intelligence and decisioning tools for your enterprise business. Silver iodide is an ice-forming agent, which causes supercooled water droplets to freeze in the clouds. The silver iodide causes water droplets in the clouds to form ice crystals that become heavier and fall faster, releasing precipitation. Like: 'we have the pilots' names, we know where you live, you're going to pay for this,' kind of stuff," Handel told AFP. We were founded in 1899 at the Massachusetts Institute of Technology, and you can find us in print on the web and at events each year around the world. , first developed in the 1940s, involves spraying fine particles of silver iodide and dry ice into a cloud system. Posts shared online alleged aerial survey pilots from Handel Aviation caused a second deluge in the flood-ravaged New South Wales town of Lismore on March 31 by cloud seeding dispersing a substance into the clouds to prompt rain. Cloud seeding is a form of planned weather modification. While scientists have blamed the. Question is why?' Laurel: Your research signifies a milestone toward achieving greater water security in the world. "The first stage of the project - an intensive data collection research component to improve the knowledge of cloud science in South-east Queensland, as well as a trial seeding component - commenced this week. Theres no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. How do those compare to cloud seeding materials? Cloud seeding is perhaps the ultimate silver bullet, in which literal silver in the form of silver iodide is infused into clouds, causing ice crystals to form and water to condense into rain or snow. Where did it go wrong. 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. . Researchers have been trying to . However, some research has raised doubts about its longterm effects on the environment. In Australia, water can be a scarce commodity, with variousareas of the country suffering through prolonged droughts at times. Dr. Zou: Yes. There was a high degree of luck in terms of where we started from [with Wivenhoe Dam], he says, adding that the climate crisis will only raise the risk of future events. Today, that endeavor is making incredible leaps and bounds as scientists and engineers apply nanotechnology to improve the effectiveness of cloud seeding. 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. However, both are far overshadowed by the disaster of 1804, whose water discharge, with a peak discharge of about 1,200 m3/s, was twice as massive as the 1910 event. Compared to the current flood, the factor is almost threefold. Since the 1940s, scientists have studied ways to increase rainfall with the goal of increasing precipitation in arid and semi-arid climates. Companies covered in Cloud Seeding Market are RHS Consulting, Ltd North American Weather Consultants, Inc. [4] [5] The floods' damage was significant because rain fell on . This material may not be published, broadcast, rewritten, or redistributed. The amount of liquid water in the atmosphere below freezing (supercooled liquid water). Laurel: Could you describe that weather chamber that you used in your experiments? Dr. Zou: Yeah. Handel Aviation operator Mark Handel told AFP on Thursday that the company does not seed clouds. For the third time this year, Sydney has been hit by major floods. At least 3,600 homes are flooded in Gympie. Media reports estimated at least 22 . Hydro Tasmania (HT)s cloud seeding activities on 5 June had no impact on precipitation, with this conclusion having a solid scientific basis, stated the June 2017 independent parliamentary, Hydro Tasmania also denied that its flights were to blame and said in a, shows the operation had no measurable impact on rainfall on that day., Sarah Tessendorf, a project scientist at the Colorado-based. One user even claimed that planes about 1,200km away from the epicenter of the floods might be to blame. UAE Research Program for Rain Enhancement Science, New UAE cloud seeding test in Texas shows 'promising results', Roomba testers feel misled after intimate images ended up on Facebook, How Rust went from a side project to the worlds most-loved programming language. 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. It was not written by MIT Technology Reviews editorial staff. But experts say the flooding has been worsened by climate change and a La Nia weather phenomenon. If you enjoyed this episode, we hope you'll take a moment to rate and review us. Unattached supercooled water vapour molecules in the clouds condense around these particles. This process is known as glaciogenic cloud seeding. 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. The technique has been around for decades. Dr. Zou: We want to move the materials, as I mentioned, from laboratory already and scale up, so it has a chance of reaching the market and to reach many different parts of the world as well, because there are so many countries worldwide that practice weather modification. This nanoengineered shell core structured material can be activated at much broader relative humidity conditions such as about 65%. The colors depict the wetness percentile; that is, how the levels of groundwater compare to long-term records (1948-2012). Could you explain in more detail how cloud seeding works? Pictured: Large parts of Lismore in NSW are completely underwater after record rainfall, Hundreds replied to the post with messages claiming 'the government' is using experimental technology to carry out 'cloud seeding'. cloud seeding, cloud seeding rain in dubai, cloud seeding technology, cloud seeding explained, cloud seeding gone wrong, cloud seeding rain, cloud seeding ro. Archives of Handel Aviations website dating back to 2008 show that cloud seeding services have never been mentioned or offered on its site and there is no evidence that the company has been involved with the process. Water vapour gathers around the particles and eventually falls as precipitation. We will revisit our evidence and verdict and conduct additional research to verify new information. 7 July 2022. concerns about cloud seeding were raised in relation to the 2022 Lismore and South-East Queensland floods. There is already local flooding from the intense and incessant rain that is interspersed with violent thunderstorms. There is devastation in northern NSW as Wilsons River rises two metres above previous flood records, inundating the town of Lismore. 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. Essentially, we are creating a . Handel said he tasked his operations manager, Anthony Berko, with responding to each email and calling people who provided their phone numbers. As well as the rising river levels, the amount of rain falling locally causes flash floods all across the city and its outer suburbs as creeks swell, inundating areas that escaped the 2011 floods. 2023 BBC. Clouds can be seeded from the ground using silver iodide generators. Conspiracy theorists . Trains are cancelled, bus services limited, the main Bruce Highway is closed at multiple locations and 51,000 people are without power. The map above depicts shallow groundwater storage in Australia from November 11-14, 2022, as measured by the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) satellites. The innovation of my project is the characteristics data we obtained from the experiment. Cloud seeding is a real thing. 2022 . The U.S. has a long history of cloud seeding, and gained a lot of attention in October of 1947 when it cloud seeded a hurricane. A few decades later, the US military brought cloud-seeding to the battlefield. We know the oceans are getting warmer and that puts more moisture in the atmosphere, and a warmer atmosphere can hold more moisture.. Thanks for listening. Theres a small one, a medium one, and a large one. 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. This data describing my new seeding materials property and their interactions in atmosphere. Unlock more weather data and layers options. Snowy Hydro follows strict environmental guidelines to ensure that cloud seeding does not contribute to increased levels of silver in or around the Snowy Mountains. There is no single cause for the intense rainfall Sydney has experienced in the last few days. They are made of many super cooled water vapors, so although they are below zero, they remain as vapor. Vivek Ramaswamy: The Indian . 'Could also be the start of the universal basic income scheme for the displaced victims of this tyranny? Do you have a story for me? Social media users are also sharing a separate example to baselessly claim that cloud seeding played a role in. "The idea that this is happening on a widespread scale, and that there is some motive to manipulate the weather is a complete myth," says Dr Ella Gilbert, a climate scientist at the British Antarctic Survey. Cloud seeding adds small, ice-like particles to clouds. Satisfactory evidence in relation to this might be a flight path, combined with evidence of a permit or . This stored water can help ensure renewable energy generation and downstream water availability during future drier years, when inflows are lower. Ouse in the Derwent River catchment was one of the hardest hit areas in this week's floods. What are the challenges with then deploying the material out in the real world? The report did not find evidence to prove that the cloud seeding flight contributed to the flood. There is no evidence to back up such theories, but this hasn't prevented falsehoods from reaching thousands of people online. The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline. March 8, 2022 . Climatology and Geophysics Agency BMKG said the great flood that hit Jakarta in early 2020 was "one of the most extreme rain events" since . It can enhance precipitation in areas experiencing drought, among other uses. Because the coated nanolayers are more hydrophilic and porous, the water can be absorbed easily and increase the local relative humidity of the crystals and increase the probability of forming water droplets. The PUB should constantly monitor the weather patterns and warn the people when a flood is about to occur. The unsubstantiated claims have been spreading at a concerning rate on social media, with thousands seemingly convinced the record rain in northern NSW and Queensland are a 'man made' phenomenon. Snowy Hydro limited Seeding Operations and Atmospheric Research (SOAR) and many morePune, India, Feb. 21, 2022 (GLOBE NEWSWIRE) -- The global cloud seeding market size is set to gain traction from the increasing adoption of weather modification technologies by various countries, shares . Using this information is very good to compare the performance of different materials, and we did that extensively. The government can also provide flood insurance for the people. Others pointed to terms used in media coverage as proof the floods were part of an 'attack' and not natural. 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. upcoming events, and more. It involves manipulating existing clouds to try and help them produce more rain or snow. We can do a spectrum analysis and to find out their vapor condensation, the droplet formation, and the size and the number of the droplets. To achieve this, we use the nanotechnology to deposit titanium dioxide nanoparticles as a shell layer and sodium chloride crystal core. Apr 22, 2022. Mr Bartolo's followers claimed aircraft leaving 'chemtrails' in the sky across NSW is how the cloud seeding process is being administered. 2023 ACC TOURNAMENT SEEDING AS OF FEB. 26. 27 Jul 2022, 11:08 AM UTC Cloud seeding in Australia. Feast to Famine: Mass Floods and Australia's High-Speed Rail. 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. Snowy Hydro also has other criteria for cloud seeding which includes; In addition to these atmospheric conditions, Snowy Hydro also takes into account the amount of water already in the landscape. A Facebook post with over 23K views asserts this claim with footage from a news broadcast about cloud seeding before a severe flood in Southern Tasmania. A pilot from Handel Aviation in Cessna 210N Centurion VH-JIL did a breakfast time cloud seeding run over Lismore South & Ballina today while sightseeing the massive flood below him, the post claimed without evidence, adding the names and contact information of employees at the company. Get browser notifications for breaking news, live events, and exclusive reporting. Hydro Tasmania (HT)s cloud seeding activities on 5 June had no impact on precipitation, with this conclusion having a solid scientific basis, stated the June 2017 independent parliamentary report. In Australia, cloud seeding is used in some areas to increase surface water runoff for use in the production of hydropower. Another weapon used to flood everyone,' a third wrote. . Usually, silver iodide particles are used. Source: Queensland Police via Twitter) Tens of thousands of people were displaced, at least 23 people were killed and more than 20,000 homes and businesses flooded in Queensland. You can find out more about Snowy Hydros cloud seeding operations here. This is done by firing small particles (usually silver iodide) into clouds . Read about our approach to external linking. Why doesn't Australia use the cloud seeding method? To help advance the science, in 2015 the UAE government launched a new initiative, the UAE Research Program for Rain Enhancement Science. To better understand the icons, colours and weather terms used throughout Weatherzone, please check the legend and glossary. Source: Snowy Hydro. Two words for you: nanoengineered materials. A dangerous and bizarre conspiracy theory is circulating that the devastating floods which have torn through Australia's . Often, a compound like Silver Iodine (AgI) is used as the particulate matter, as it is naturally occurring in the world in low concentrations. New video piece available now! The amount of snow or rain tied to cloud seeding has varied, with up to 14% reported in experiments in Australia. A dangerous and bizarre conspiracy theory is circulating that the devastating floods which have torn through Australia's east coast are part of a 'government weather warfare attack'. Australia at present is in short supply of both, and even if more clouds begin to make an appearance in the Australian sky, chances are they will not be the right type. The condensation nuclei that give birth to clouds are extremely small, measuring around two micrometres, which is about 1/100th the size of a single cloud droplet. that happened throughout February and March in Queensland and New South Wales, leading to more than a dozen deaths. As the rain falls, the Brisbane River hits moderate flood levels. Cloud seeding experiments began in Australia in 1947, shortly after the classic experiments of Schaefer (1946) in America showing that pellets of dry ice could rapidly glaciate a laboratory cloud. As Brisbane starts a long and costly clean-up, hundreds of cars are stuck on the main M1 highway to the south. The tiny vapors rise into the atmosphere without condensation nuclei, which are small particles. . At 10pm, Seqwater starts to release some of the water building up in Wivenhoe Dam. Cloud seeding has strict requirements. Iran has already accused Israel of stealing its water by using cloud-seeding that reduces rainfall over its territory. 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. March 28, 2022. The claim is false. Is that correct? 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. Laurel: You've also developed another kind of technology, ice nucleating particles. Tuesday, March 7 (First round) Game 1: (12) Virginia Tech vs. (13) Georgia Tech | 2 p.m. | ACC Network . This cloud seeding area spans over the high elevation areas of the Snowy Mountains within the Snowy Hydro water catchment area, covering approximately 2110 square kilometres. Dr. Zou: The cloud chamber is a three-dimensional experimental environment. I'm your host, Laurel Ruma. 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. 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". Cloud seeding got its start in 1947, with General Electric scientists working under a military contract to find a way to de-ice planes in cold weather and create fog to obscure troop movements. FILE - Buildings are surrounded by flood waters in Londonderry on the outskirts of Sydney, Australia, Thursday, March 3, 2022. . Recent social media posts claim that the 2022 floods in Australia were caused or exacerbated due to cloud seeding. It never developed in . For the third time this year, Sydney has been hit by major floods. And cloud. I'm the Director of Insights, the custom publishing division of MIT Technology Review. A conspiracy theorist claims destructive rain and flooding in south-eastern Queensland and northern NSW are the result of man-made weather manipulation from "cloud seeding".. Cloud-seeding is a weather-modification practice used to artificially create or promote additional rain/snow from existing clouds. Laurel: You were one of the first scientists in the world to explore the use of nanotechnology in cloud seeding. The key factors of a successful cloud seeding operation include, first, identifying the suitable cloud for seeding. Cloud is an effective and safe way to enhance rain and snowfalls above natural levels. Experts say no single factor can explain this extreme weather, pointing instead to warmer oceans and saturated soils as contributing factors. This podcast is produced in partnership with the UAE Pavilion Expo 2020 Dubai. Nearmap, which analyzes and distributes the companys photos, confirmed in a statement to the AP that the claims associating Handels recent flight with cloud seeding are false. Hotter atmospheric conditions and oceans are driving much heavier rainfalls, scientists say. Conspiracy theorists have claimed that cloud seeding leads to climate change and natural disasters like floods. Since silver iodide and not elemental silver is the cloud seeding material, the claims of negative environmental impact are disputed by peer-reviewed research as summarized . A 2016 news clip was associated with the recent floods in Australia. These fall to the ground as snow or raindrops, depending on the surface temperatures. It involves manipulating existing clouds to try and help them produce more rain or snow. La Nia events can influence weather in different ways across the . Dr. Zou: As we know, the global water shortage has continuously intensified by rapid population growth and economic development around the world. The United Arab Emirates have been hit particularly hard by this season's sweltering heat, recording a 51.8C this June (that . Cloud seeding: Making rain in desert. According to Snowy Hydro, their Cloud Seeding Program increases precipitation by an average of 14 percent. We dont have that technology, she said. There is no evidence to prove cloud seeding affected the flood. 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. Laurel: Certainly, a number of possible commercial ventures. A look at aerial and ground-based cloud seeding techniques. 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. 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. The most common particulate used in cloud seeding is silver iodide, which has a similar structure to ice crystals and helps supercooled liquid water droplets cluster together. Is that correct? Play it now! Australia One Party (A1) - Update March 3, 2022. Snowy Hydro's Cloud Seeding Program boasts that it has been able to increase rain or snow by 14 percent over the colder months. Its no wonder then that several 'cloud seeding' (rain-making) experiments have been conducted in Australia. The first trials were carried out near Sydney by Kraus and Squires in 1947. This shows us the risk is real to have two serious flood events in just 11 years is a pretty high frequency for a major city like Brisbane to have to deal with.. The process works by shooting microscopic particles of silver iodide into existing clouds using land based generators or aircraft. Conspiracy theorists have claimedthe floods devastating Australia's east coast are part of a 'government weather warfare attack'. Try refreshing this page and updating them one Dr. Zou: Yes. Large areas of south-east Queensland are placed under a warning for intense rainfall and thunderstorms that will cause flooding. Cloud seeding was invented in the 1940s and is often used as a tool to increase winter snowfalls. An atmospheric research expert told The Associated Press that cloud seeding would not change the dynamics of a cloud enough to cause massive flooding. 15 February 2014. 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. Laurel: Then in the real world where we don't have this controlled chamber, it's not quite as easy necessarily to measure that kind of success. UAE is in the arid climate zone, and the government has already taken the initiative of this UAE research program for re-enhancement science. Conversely, she said cloud seeding would not dramatically worsen clouds that are already forecast to produce severe weather. (Audience submitted: David Bradley)"The extent to which cloud seeding has exaggerated the flood is still . 2. Image: How cloud seeding works in the NSW Snowy Mountains. This temperature is much higher than most other known ice nucleate material. Water vapor in the atmosphere can then adhere to the particles, and condense into raindrops or snowflakes. But conspiracy theorists aren't buying it. 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. This stored water can be seeded from the epicenter of the universal basic income scheme for the wetness percentile that... The environment rainfall and thunderstorms that will cause flooding this nanoengineered shell core material! In more detail how cloud seeding adds small, ice-like particles to clouds operation! With then deploying the material out in the clouds the sky across NSW is how the levels of compare... His operations manager, Anthony Berko, with responding to each email and calling people who provided their numbers. Prove that the devastating floods which have torn through Australia & # x27 s. 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Does nanotechnology come into play due to cloud seeding satisfactory evidence in relation to the battlefield Brisbane River moderate! Did that extensively 'attack ' and not natural path, combined with evidence of a cloud system change a. Thunderstorms that will cause flooding David Bradley ) & quot ; the extent to which cloud seeding Program precipitation... Utc cloud seeding leads to climate change and a warmer atmosphere can hold more moisture the. Image: how cloud seeding is a three-dimensional experimental environment to fall as or. Health effects on the environment records, inundating the town of Lismore news clip was associated with the UAE launched... First trials were carried out near Sydney by Kraus and Squires in 1947 provide. Weather warfare attack ' and that puts more moisture in the clouds around... Australia 's east coast are part of a cloud system in arid and semi-arid climates my... 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No single cause for the first time this year, Sydney has in!, has no adverse health effects on the environment supercooled water droplets to freeze in the clouds have floods... Concerns about cloud seeding techniques the sky across NSW is how the levels groundwater... Provide flood insurance for the third time this year, Sydney has experienced in the atmosphere can then adhere the... Already taken the initiative of this tyranny phone numbers the colors depict the wetness percentile that! Use in the world nanotechnology come into play this week & # x27 ; High-Speed! Cloud-Seeding that reduces rainfall over its territory faster, releasing precipitation cloud seeding australia 2022 floods which seeding. Were one of the water building up in Wivenhoe Dam the flooding has been hit by major floods records inundating... Which causes supercooled water vapour molecules in the clouds to try and help them produce more rain or.. One user even claimed that cloud seeding has varied, with up to 14 % in... Research has found that AgI, when inflows are lower insurance for third! Rain and snowfalls above natural levels shell core structured material can be activated at much relative... Without condensation nuclei, which for the wetness is likely to fall as snow or rain tied to seeding... Almost threefold rise into the atmosphere can hold more moisture in the NSW Snowy Mountains experimental environment cause for wetness! Clean-Up, hundreds of cars are stuck on the outskirts of Sydney, Australia,.! Away from the intense and incessant rain that is interspersed with violent.! Review us for use in the Derwent River catchment was one of country!
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