Humanity has declared war on climate change. No matter, that we were responsible for it in the first place ; but I think we can all agree that if these storms and floods can be prevented then we should try our utmost to ensure that they dont occur. This cloud spraying technique should be able to counteract the global warming associated with a doubling of carbon dioxide levels by enhancing the reflectivity of low-lying clouds above the oceans, according to researchers in the US and UK.

Clouds are a key component of the Earth climate system. They can both heat the planet by trapping the longer-wavelength radiation given off from the Earth surface and cool it by reflecting incoming shorter wavelength radiation back into space. This technique attempts to increase the reflectivity of the clouds thus cooling down this over heated planet.

This can be done using a worldwide fleet of autonomous ships spraying salt water into the air. Each ship would be 300 tonnes and would not use conventional sails but be fitted with a number of 20 m-high, 2.5 m-diameter cylinders known as Flettner rotors that would be made to spin continuously.

This spinning would generate a force perpendicular to the wind direction, propelling the ship forward. These would also assist in spraying extremely small droplets into the clouds.

The technique also has the advantage of being able to minutely control the amount of cooling that should be done unlike others which once initiated cannot be stopped.

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