Steven Siems, from Monash University's School of Earth Atmosphere and Environment, is a cloud expert. Mass Floods and Australia's High-Speed Rail. Cloud seeding, first developed in the 1940s, involves spraying fine particles of silver iodide and dry ice into a cloud system. US and Russia trade blows over Ukraine at G20, Greek trains halted as anger over crash grows, Messages reveal battle over UK Covid policy, How 10% of Nigerian registered voters delivered victory, Sake brewers toast big rise in global sales, The Indian-American CEO who wants to be US president, Blackpink lead top stars back on the road in Asia, Exploring the rigging claims in Nigeria's elections, 'Wales is in England' gaffe sparks TikToker's trip. In the 2016 clip from the Australian TV network 7News, a journalist says, Residents in southern Tasmania are demanding to know why cloud seeding was conducted over the Derwent River catchment the day before the worst floods in 40 years., One social media user shared the old clip Tuesday with the caption, Remember when this was a CONSPIRACY NOW - CLOUD SEEDING IS NOW OPENLY REPORTED - MAKING FLOODING WORSE - investigations are now being conducted as to WHY this was done!. 'I've been in Wagga Wagga for the last four days and the amount of chemtrails in the sky above the Riverina region is beyond comprehension,' the person commented. They've basically lost everything and then someone has then said here's your answer," Berko said. Apr 22, 2022. The photograph shows two Royal Australian Air Force (RAAF) DC-3 planes flying above some cumulus clouds. Since the 1940s, scientists have studied ways to increase rainfall with the goal of increasing precipitation in arid and semi-arid climates. NSW's Snowy Mountains region. "These aerial captures are commissioned after major weather catastrophes and natural disasters, including following the recent east coast flooding," the NearMap spokesman said. It can enhance precipitation in areas experiencing drought, among other uses. Theres a small one, a medium one, and a large one. 2023 BBC. This is done by firing small particles (usually silver iodide) into clouds . Mr Bartolo moved to the Gold Coast in November 2020 after he was charged with incitement for organising illegal protests during Melbourne's lockdown. 3 January 2020. According to some laboratory studies, a high concentration of AgI can affect smaller organisms like algae and bacteria when applied consistently over a long period of time. Farm Heroes Saga, the #4 Game on iTunes. Social Credit? For cloud seeding to produce rain you need moisture to begin with. Experts say no single factor can explain this extreme weather, pointing instead to warmer oceans and saturated soils as contributing factors. That's it for this episode of Business Lab. There's no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. Some of the natural sources include bushfires, volcanoes and dust storms, while artificial sources of condensation nuclei include industry emissions and cloud seeding operations. 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'. . Laurel: You've also developed another kind of technology, ice nucleating particles. 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. Resources: https: . You took this on as part of your research. So, what is cloud seeding, how does it work and where is it used in Australia? Laurel: Dr. Zou, thank you so much for being with us here on the Business Lab. The higher you move up to the atmosphere, quickly moving into subzero and very cold. Prof Stuart Khan, an expert on water management at the University of New South Wales, says Wivenhoe gained about 1,450 billion litres of water, which all came in under three days. Brisbane has two features that make it susceptible to flooding. Handel said he tasked his operations manager, Anthony Berko, with responding to each email and calling people who provided their phone numbers. So it has a huge possibility to improve its efficiency. 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. Prof Bofu Yu, of Griffith Universitys Australian Rivers Institute, says in 2011 rainfall was concentrated in the west and not as widespread as the current flooding. (Audience submitted: David Bradley)"The extent to which cloud seeding has exaggerated the flood is still . Covered in this AustraliaOne Update -. A dangerous and bizarre conspiracy theory is circulating that the devastating floods which have torn through Australia's . The clip is unrelated to recent floods in Australia, however, and dates . There is no evidence to back up such theories, but this hasn't prevented falsehoods from reaching thousands of people online. [2] [3] Around 85,000 people were displaced by the flooding or requested to leave their homes by authorities. 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. TOTT News March 8, 2022. I'm your host, Laurel Ruma. 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Today, that endeavor is making incredible leaps and bounds as scientists and engineers apply nanotechnology to improve the effectiveness of cloud seeding. 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. upcoming events, and more. Second, having the efficient seeding material for water droplet formation. Unfortunately, such material is unpredictable, where and how much available. They are made of many super cooled water vapors, so although they are below zero, they remain as vapor. Queensland Premier Annastacia Palaszczuk has expressed her concern over the impact of the floods as the state is inundated by rain. As the water spreads to northern New South Wales, how did the so-called rain bomb develop? What are the challenges with then deploying the material out in the real world? 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. It is important to note that the American Chamber of Commerce in South China (AmCham South The amount of snow or rain tied to cloud seeding has varied, with up to 14% reported in experiments in Australia. The aim is to get other innovative projects from scientists in the field of rain enhancement from all over the world, with the winning ideas obtaining a grant of $5 million to work and improve on concepts for a period of three years. 15 February 2014. Cloud seeding: Making rain in desert. He was charged with incitement for allegedly encouraging his social media followers to attend an illegal rally. Get browser notifications for breaking news, live events, and exclusive reporting. The Bureau of Meteorology warns that an area of low pressure over the south coast of Queensland is dragging in moisture from the Coral Sea to the north and then lifting it over the coastline. For more information about us and the show, please check out our website at technologyreview.com. A 2016 news clip was associated with the recent floods in Australia. Satisfactory evidence in relation to this might be a flight path, combined with evidence of a permit or . We will revisit our evidence and verdict and conduct additional research to verify new information. Cloud seeding can also, in some cases, cause the cloud to grow larger and last longer than it would have without the modification. Recent social media posts claim that the 2022 floods in Australia were caused or exacerbated due to cloud seeding. 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'. To be successful, scientists need 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 team of pilots is conducting an investigation by releasing the seeding materials and in real time capturing and analyzing them. Theres no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. Unattached supercooled water vapour molecules in the clouds condense around these particles. Cloud seeding gives these clouds a lot more ice crystals (or cloud nuclei). La Nia events can influence weather in different ways across the . 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. Australia 05:57 31 Mar 2022 . 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. Compared to the current flood, the factor is almost threefold. One user even claimed that planes about 1,200km away from the epicenter of the floods might be to blame. Ice nucleation is important. Why Is the Government Cloud Seeding in NSW's Over the Areas That Have Just Been Ravaged by Floods? Share. Our in-depth reporting reveals whats going on now to prepare you for whats coming next. Twitter users are sharing a clip from a 2016 news broadcast about flooding in Tasmania to claim it proves that cloud seeding provoked the heavy rainfall. These fall to the ground as snow or raindrops, depending on the surface temperatures. Domensino says while several features in the atmosphere combined to deliver the rain, climate change likely made the event worse. Most research has found that AgI, when dispersed in cloud seeding, has no adverse health effects on the environment. Get in touch. The BoM has said heavy rainfall events will get more intense as the world gets hotter. 'Moving people into so-called 'smart cities' is likely, I think, considering the World Economic Forum openly talks about these things. CBS News reported on April 8 that many Australian pilots and aviation companies received threats regarding false claims on social media about cloud seeding. This is done by firing small particles (usually silver iodide) into clouds. The comments below have not been moderated. Using this information is very good to compare the performance of different materials, and we did that extensively. Scientists blame intense rainfall on a . Our topic today is cloud seeding to increase rainfall. 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. If we had started where we started from in 2011 we would be in serious trouble.. Not since Charlemagne was crowned . Dr. Zou: The cloud seeding materials used today have been around for many decades. There are up to 15,000 homes flooded in the city, with 1,544 people in evacuation centres in the south-east. Laurel: You were one of the first scientists in the world to explore the use of nanotechnology in cloud seeding. So they form super cool vapor and crystallize into ice particles. Usually, silver iodide particles are used. In the U.S., studies have found a few percentage points of increase in precipitation. Experts said that the floods in Australia were naturally occurring and cloud seeding cannot cause flooding. This podcast episode was produced by Insights, the custom content arm of MIT Technology Review. Cloud seeding is usually carried out by sprinkling particles from a plane. Conspiracy theorists have claimedthe floods devastating Australia's east coast are part of a 'government weather warfare attack'. Australia, March 30, 2022 in an image taken from video. Since the 1940s, scientists have studied ways to increase rainfall with the goal of increasing precipitation in arid and semi-arid climates. Handel Aviation operator Mark Handel told AFP on Thursday that the company does not seed clouds. Dr. Zou leads a groundbreaking research project using nanotechnology to develop cloud-seeding materials. Everything from wind speed, air movement and updraft, or a current of rising air, can affect a storms strength, Tessendorf said. 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. 2. Sarah Tessendorf, a project scientist at the Colorado-based National Center for Atmospheric Research 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. As a result, flooding this time has been much more extensive from small creeks and large rivers, he says. As the rain falls, the Brisbane River hits moderate flood levels. Given climate change is a background to all weather events, its hard to say that it does not play a role, he says. QLD Premier's father runs genetic data storage company. These small droplets and crystals usually form around even smaller particles of dust, salt and other aerosols floating in the atmosphere, which are called cloud condensation nuclei. This process is known as glaciogenic cloud seeding. But experts say the flooding has been worsened by climate change and a La Nia weather phenomenon. There is no evidence to prove cloud seeding affected the flood. 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. They remain as vapors in the air and move higher and further. Large areas of south-east Queensland are placed under a warning for intense rainfall and thunderstorms that will cause flooding. But there is no evidence to suggest cloud seeding has anything to do with the current rainfall in Sydney. CORRECTION: We have added an additional source relating to cloud seeding that debates its harmless nature. "We had really violent threatening stuff coming through. 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 . However, some research has raised doubts about its longterm effects on the environment. It involves manipulating existing clouds to try and help them produce more rain or snow. Dr. Zou: The cloud chamber is a three-dimensional experimental environment. Bartolo's move to Gold Coast came after getting arrested in a dramatic police raid in Melbourne in September 2020. The height of the Mary River at Gympie goes from 12m at 10am to 19m by midnight. Read about our approach to external linking. I used an eight cubic meter chamber with controlled humidity and temperature. Now theyve finally become mainstream. This nanoengineered shell core structured material can be activated at much broader relative humidity conditions such as about 65%. Dr. Zou: It is a challenge area and I have collaborated with the Cloud Microphysics Modeling International team. Personalise your weather experience and unlock powerful new features. Bartolo was handcuffed on his lounge room floor in a struggle seconds after the police broke inside. 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. The colors depict the wetness percentile; that is, how the levels of groundwater compare to long-term records (1948-2012). Siems, a professor who leads a Monash University team studying clouds and precipitation, said the practice is not conducted in the Northern Rivers region and it cannot cause flooding. April 8, 2022 / 6:52 AM / AFP . Defence and National Security Intelligence. Do you have a story for me? A high tide on Sunday evening pushes the river higher as the rising ocean water effectively holds back the freshwater. Pilots get "really violent" threats after online rumors wrongly pin devastating floods on cloud seeding. 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. To "seed" cloud formation, a small aircraft releases a cloud of particulate matter. "Cloud seeding aims to enhance the amount of rain falling from rain-bearing clouds," Mr McNamara said. Today have been around for many decades groundwater compare to long-term records ( 1948-2012 ) AgI, when in... 1948-2012 ) or snow about these things as vapors in the world Economic Forum openly talks about things... 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