Some ideas for geo-engineering are close to carbon capture and storage, which is aimed ateliminating emissions from specific facilities. Carbon-dioxide removal might be applied to theatmosphere: this is what plants do. Another idea is “ocean fertilisation, to accelerate naturalabsorption of carbon dioxide.

地球工程方面的一些构想接近于碳捕获和储存，旨在消除特定设施的排放。去除二氧化碳的做法可能适用于大气：植物就起到这样的作用。另一种想法是“海洋施肥(ocean fertilisation)，加速对二氧化碳的自然吸收。

Replication of the atmospheric impact of a volcanic eruption would directly offset theimpact of greenhouse gases. The matter emitted by the eruption at Mount Pinatubo in thePhilippines in 1991 lowered global temperatures by 0.5C. The 20m tonnes of sulphur dioxideemitted dimmed the amount of radiation from the sun by 2 to 3 per cent in the following year.If we continue on our present path, that is the sort of measure people might well try toreplicate.

再现火山爆发对气候的影响将直接抵消温室气体的影响。1991年菲律宾的皮纳图博火山(Mount Pinatubo)爆发所产生的物质使全球气温下降了0.5摄氏度。喷发出的2000万吨二氧化硫在随后一年里削弱了来自太阳的2%至3%的辐射。如果我们继续现在的道路，将来人们很可能会尝试这类措施。

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