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This is an audio long read from nature.

In this episode, can artificially altered clouds save the Great Barrier Reef?

Written by Jeff Tollifson and read by me, Benjamin Thompson. In place of its normal load of cars

and vans, the repurposed ferry boat sported a mobile science laboratory and a large fan on its deck as it left Townsville, Australia in March.

Researchers dropped anchor in a coral lagoon, some 100 kilometres offshore, and then fired up the cone-shaped turbine, which blew a mist of seawater off the back of the boat.

What happened next came as a welcome surprise.

After briefly drifting along the ocean surface, the plume ascended into the sky.

Looking a bit like a jet engine, this mist machine is at the centre of an experiment that,

if successful, could help to determine the future of the Great Barrier Reef.

320 nozzles spewed a cloud of nano-sized droplets, engineered to brighten clouds and block sunlight,

providing a bit of cooling shade for the coral

...