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Aircraft contrails are a climate menace. Can we rid the sky of them?

Aircraft contrails are a climate menace. Can we rid the sky of them?

17 March 2021

The wispy cloud trails left by aircraft cause more warming than the carbon emissions from their fuel. Now there might be a simple way to stop them forming
icebreaker

A cracking idea: The radical way to open up frozen seas

7 March 2018

Arctic routes are getting busier and some ships get trapped in the ice. Rather than smash them out with brute force, there is a more elegant way to free them

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