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Notice any outpoints in this potential?

Sumatra: the Sunda trench lies close by far beneath the ocean

Planet Observer/Getty

By Michael Marshall

Here is a radical solution to dangerous climate change: create lakes of liquid carbon dioxide on the seabed, and keep the greenhouse gas out of the air.

As well as cutting our emissions of carbon dioxide, it is becoming increasingly likely that we will have to actively remove the gas from the air to keep Earth’s temperature at a safe level – which is now agreed to be no more than 1.5 °C above that in preindustrial times.

But where should we put the carbon? Most attention has focused on burying it underground, perhaps by injecting it into depleted oil and gas fields. This approach has been tested and seems to work, but it is unclear whether people will accept this fix.

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Now Steve Goldthorpe, an energy analyst based in New Zealand, has suggested a radical alternative: dump the carbon dioxide in deep ocean trenches, where it can sit permanently as a liquid lake.

They need MVTG carbon re-use.

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