🚨Stardust Solutions, an Israeli-US startup founded in 2023, specializes in solar geoengineering, specifically, stratospheric aerosol injection (SAI). This technique aims to combat climate change by releasing reflective particles into the upper atmosphere (stratosphere) to mimic the cooling effects of volcanic eruptions, which temporarily block sunlight and lower global temperatures. On Oct.24, 2025, the company announced it had raised $60 million in venture capital, bringing its total funding to $75 million. This influx supports the development of proprietary aerosol technology and plans for the first controlled outdoor experiments releasing particles from a modified aircraft at about 11-18 km (7-11 miles) altitude

🚨According to experts, this method (SAI), can have temporary positive effects such as reducing temperature, but it also comes with negative and unexpected consequences. These consequences have been identified based on climate modeling and scientific studies, and include climatic, environmental, social, and economic changes. Below, I summarize some of the most important consequences for you; Reduced rainfall in tropical regions. Drought in sub-Saharan Africa, India, and northeastern Brazil. Increased storms in the North Atlantic. Stratospheric warming (up to 2.5°C with sulfate injection). Changes in atmospheric circulations (such as Hadley and Walker) that affect regional weather patterns. Ozone layer depletion, increased UV radiation, and skin cancer risk. Stratospheric pollution by particles (such as alumina or calcite) that can disrupt ecosystems. Reduced agricultural yields due to less precipitation, leading to famine and water shortages. Increased respiratory diseases from aerosol pollutants. UV changes affecting skin health. Regional inequality, where some areas benefit (such as reduced storms), but others suffer (such as drought). Termination shock: If injection stops, temperatures rise rapidly, and effects become worse than before. High costs (billions of dollars annually) and technological challenges, such as specialized aircraft for injection
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