Terrifying simulation reveals exactly what will happen if asteroid Bennu crashes into Earth in 2182
Daily MailOf the thousands of space rocks whizzing through the solar system, there is one that has astronomers more worried than any other. If Bennu hit Earth, Dr Dai and his co-authors estimate that 100 to 400 million tonnes of dust would linger above Earth for around two years. However, the more lasting impact would come from the 100-400 million tonnes of dust that would be ejected into the atmosphere The simulations show that the dust would banket Earth, blocking out the sun and leading to massive reductions in light, surface temperature, and precipitation What would happen in Bennu hit Earth? These show that the temperatures would fall by 4˚C and global rainfall would reduce by 15 per cent These conditions would trigger huge reductions in the productivity in land and marine ecosystems. Dr Dai says: 'The abrupt "impact winter" would provide unfavourable climate conditions for plants to grow, leading to an initial 20–30 per cent reduction of photosynthesis in terrestrial and marine ecosystems.'
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