Scientists have identified a potential future threat from asteroid Bennu, which has a very small but non-zero chance of colliding with Earth in September 2182. According to new computer simulations, such an impact would cause a global 'impact winter,' significantly reducing photosynthesis and leading to a prolonged food crisis. The asteroid, approximately 500 meters in diameter, could eject between 100 and 400 million tons of dust into the atmosphere, disrupting climate patterns, atmospheric chemistry, and plant life for several years. This would result in a drop in average global temperatures by around four degrees Celsius, a 15% decrease in precipitation, and a 20–30% reduction in plant photosynthesis. Additionally, the ozone layer could thin by about 32%, increasing exposure to harmful UV radiation. While the immediate effects would include shockwaves, earthquakes, fires, and heat radiation, the long-term impacts on climate and ecosystems could severely threaten food production. Researchers note that marine plankton might recover faster than land plants, though some areas could see a sudden increase due to iron-rich dust entering oceans. Bennu is composed of loose rocky material
Bias read (Center): The article discusses scientific research on the potential impact of an asteroid, focusing on its physical and environmental consequences. It presents findings from academic researchers without overtly favoring any political perspective. There is no mention of policy responses, political figures, or





