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When the subject of weather manipulation and cloud seeding comes up, many individuals immediately think of conspiracy theories and shadowy government agencies plotting to weaken their adversaries through floods, hurricanes, or even both. Though rare, there are records suggesting that some government agencies have at least considered the idea of utilizing such environmental tactics as weapons.
Yet, many cloud seeding projects and experiments, when successful, provide regions with a means to avoid droughts, boost agricultural yields, or help cleanse the atmosphere. Below are ten examples—whether positive, negative, or neutral—of efforts to alter the weather.
10. China 'Cleanses Rain' Before 2008 Olympics
In the lead-up to the 2008 Beijing Olympics, particularly the opening ceremony, the Chinese government openly carried out its cloud seeding program to ensure that the first day of the Games wouldn’t be ruined by rain or any other undesirable weather conditions. Over 1,000 rockets were launched in the days before the ceremony to disperse rain clouds that were threatening the event.
For the Chinese government, cloud seeding is a routine practice, often conducted before major public holidays or significant events. And it’s not always done to ensure clear skies. In some cases, rain is 'created' in advance, which then helps clear smog and reduce pollution, leaving behind picturesque blue skies. Despite concerns about the methods, including the use of silver iodide in the atmosphere, the Beijing Weather Modification Office reassures that the quantities used are completely safe for humans.
9. CIA Uses Weather As A Weapon
It may not be surprising to learn that the CIA has been involved in weather manipulation, but the admission still comes as a shock. As it did when Alan Robock, a climatologist from Rutgers University familiar with many CIA weather experiments, publicly commented in December 2015.
Robock highlighted numerous examples, one being a five-year mission by American intelligence services during the Vietnam War. US military aircraft participated in extensive, and successful, cloud seeding operations that extended monsoon seasons, giving the Americans a tactical advantage. Similar operations were also carried out to induce heavy rainfall over Cuba in an effort to devastate their sugar crops.
If Robock’s account is accurate, various countries across the world are also using weather and its modification as a form of warfare, employing techniques such as releasing 'rain-inducing chemicals' from planes and utilizing advanced pulse technologies.
8. Project Cirrus Redirects Hurricane's Path
One of the most extensively documented weather manipulation experiments involving the U.S. military was codenamed Project Cirrus, which took place in October 1947. This project saw the collaboration of the U.S. Air Force, Army Signal Corps, the Office of Naval Research, and General Electric Corporation, whose participation raised suspicions in conspiracy circles, particularly due to the company’s alleged involvement with both sides during World War II.
The experiment marked the first attempt to alter a hurricane. The storm, initially on track to move out to sea, reportedly changed its course and caused substantial damage to Savannah, Georgia, after a U.S. military aircraft flew directly into it. The plane dropped 82 kilograms (180 pounds) of crushed dry ice into the hurricane.
The sudden shift in the hurricane’s trajectory was blamed on Project Cirrus, leading to the project’s cancellation amid threats of legal action. Nevertheless, those involved were aware of the likely fallout from their actions, despite the adverse effects on the local population.
7. The South African Rainfall Enhancement Program
From 1997 to 2001, South Africa conducted an advanced cloud seeding program using hygroscopic flare seeding technology. This initiative aimed to boost rainfall, enhance crop production, and increase harvests. Throughout the four-year experiment, radar and satellite technologies played an essential role. A total of 95 storms were seeded, and after tracking and monitoring, about a third were chosen for 'treatment' to increase rainfall and, to a lesser extent, influence its location.
On average, the 37 storms that were treated saw rainfall amounts double compared to normal expectations. The program was recommended for further investigation and development, with the added suggestion that it remain a key focus for government priorities. If perfected and efficiently implemented, it could bring considerable socioeconomic benefits to the targeted regions.
6. Illinois Explored Weather Modification in the 1970s
In July 1975, Illinois, a state deeply dependent on agriculture, began exploring the potential of weather modification. A paper by Stanley A. Changnon, the then-president-elect of the Weather Modification Association, suggested that rather than 'watching the skies anxiously,' Illinois residents could take charge of the weather through the use of weather modification techniques.
Additionally, Changnon argued that Illinois’ diverse weather patterns—including freezing winter storms, intense spring hailstorms and tornadoes, and 'tropical heat' in the summer—made a compelling case for weather modification, although he also acknowledged that technological advancements might bring 'future problems.' Changnon believed that, at the time, Illinois was leading the U.S. in weather modification research, although it remains unclear how much of that research was actually implemented.
5. Israel Has Been Seeding Storms Since the 1970s
In 1975, Israel was not the only country exploring weather modification, specifically cloud seeding. Since the early 1970s, Israel has carried out extensive studies and participated in significant cloud seeding programs to boost the sparse rainfall reaching the country from the Mediterranean Sea.
Over time, research has shown that clouds over the Sea of Galilee have higher 'seeding potential' compared to previous targets. As a result, cloud seeding efforts have shifted to focus on this area. Additionally, it was found that clouds over Galilee are naturally seeded by sea salt spray, further justifying the continuation of these experiments.
Similar to the cloud seeding experiments in South Africa, Israel has also relied heavily on satellite and radar technology in the ongoing study of clouds and storms, aiming to understand how best to manipulate these weather patterns.
4. The UAE Is One of the First Arab Nations to Embrace Cloud Seeding
Recognized for being at the forefront of technological innovation, the United Arab Emirates stands out as one of the first Arab nations to implement and advance cloud seeding technologies. Using satellites and radar, the weather across all areas of the country is monitored around the clock, enabling scientists to identify the most promising clouds for seeding at specific times of the year, and even predict the regions where these clouds will form.
In addition to cloud seeding, these studies also address environmental pollution, the monitoring of potential natural disasters, and providing advice and research for the country’s agricultural sector. The UAE also keeps track of cloud seeding projects worldwide and assesses any potential impact these activities may have on its own weather patterns.
3. Economic Pressures Prompt Mexico to Explore Cloud Seeding
Like many nations across the globe, Mexico has increasingly found itself vulnerable to the unpredictable weather, with droughts becoming more frequent and prolonged. One particularly severe drought struck during the late 1940s, having detrimental effects not only on agriculture but also on hydroelectric power production and the 'curtailment of industrial production.'
In short, the drought posed a serious threat to bring the entire country to a halt, worsening even further in 1949. As a result, target areas were identified, and planes “equipped with silver iodide” were dispatched into the atmosphere over the affected regions. These planes spent up to two hours each day seeding their assigned target areas during the program.
2. Maharashtra's Cloud Seeding Experiment Takes Off
In response to frequent and severe droughts in the region, the Indian state of Maharashtra’s government announced in 2017 that it would initiate a three-year cloud seeding program to address the issue. Similar to other countries, the program will employ silver iodide and dry ice, delivered by aircraft that will fly high above the region’s atmosphere.
The experiment had been in development for several years, though ironically, “above-normal” rainfall seasons delayed its commencement. Now that the program is finally underway, scientists aim to gather valuable data to better understand the region's weather patterns. This three-year initiative will not only benefit the immediate area but is also part of a global research effort led by India’s Ministry of Earth Sciences, with the goal of deepening our understanding of how chemicals and clouds interact and their broader impact on the Earth’s climate.
1. Canada Takes Action Against Destructive Hailstorms
Severe hailstorms are a regular occurrence in parts of Canada, prompting the Alberta Hail Suppression Project to fly planes directly into the heart of these storms. The goal of cloud seeding is to reduce the damage caused by the hail. The financial burden of these storms on property and businesses is so great that the insurance industry covers the cost of these seeding efforts, amounting to $3 million annually. This figure highlights the significant payouts made to policyholders every year.
Operating from their headquarters at Didsbury Airport in Alberta, pilots launch their planes into the storms as soon as they are detected. They fire flares filled with silver iodide, which helps reduce the size of the hailstones. In some cases, the hailstones even melt before they reach the ground.
An intriguing aspect of this program is that intense hailstorms seem to be occurring more frequently in certain regions of the country. Whether this is a result of the seeding efforts or merely a coincidence remains unclear.
