Commonly known as 'laughing gas' and currently used both in anaesthetics and as a 'legal high', nitrous oxide (N2O) is a powerful greenhouse gas produced in the soil by micro-organisms, especially so on land grazed by animals.
12 hours ago in Environment
Diplomats tasked with forging a climate rescue pact expressed frustration Wednesday over the lagging progress, with only seven negotiating days left until a Paris conference which must seal the deal.
4 hours ago in Environment
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