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Takeaway: 'Laughing gas', another climate enemy

Takeaway: 'Laughing gas', another climate enemy
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Not so funny, “laughing gas” N2O is a powerful greenhouse gas.

Produced by bacteria in farmland, it also attacks the ozone layer.

This experimental robot measures levels of nitrous oxide over a long period of time.

The data collected is a great help to scientists, in their fight against global warming

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