二氧化碳是氣候變化的元兇，除了生活中的碳排放，空氣中的二氧化碳也是個棘手的問題。冰島一家工廠采用了新除碳技術，捕獲空氣中的二氧化碳并將其轉化為石頭，這樣二氧化碳就“無處可逃”了!

At the foot of an Icelandic volcano, a newly-opened plant is sucking carbon dioxide from the air and turning it to rock, locking away the main culprit behind global warming.

在冰島的一座火山腳下，一家新開的工廠正在吸收空氣中的二氧化碳并將其轉化為石頭，把全球變暖的元兇囚禁起來。

Orca, based on the Icelandic word for "energy," does its cutting-edge work at the Hellisheidi geothermal power plant in southwest Iceland.

這家名為Orca(源自冰島語，意思是“能源”)的工廠在冰島西南部的赫利舍迪地熱發(fā)電站開展這一尖端工作。

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It is the world's largest plant using the direct air capture technology (DAC), which is the least developed of the carbon removal technologies. Climeworks, a Swiss start-up that has just built the plant, is not deterred1.

該工廠是全世界使用直接空氣捕集技術的最大工廠，直接空氣捕集技術是各種除碳技術中最不成熟的一種。盡管如此，開辦這一工廠的瑞士初創(chuàng)企業(yè)Climeworks并沒有被嚇退。

By pulling CO2 from ambient air, the plant is different from more traditional types of carbon capture and storage (CCS) projects at highly-polluting industrial smokestacks.

這家吸收周圍空氣中二氧化碳的工廠和比較傳統的碳捕獲與存儲項目不同，后者被用于捕獲高度污染的工業(yè)煙囪廢氣。

Fans in front of the collector draw in ambient air and release it, largely purified of CO2, through ventilators at the back.

該工廠的收集器在通過前端的風扇吸入周圍空氣后，會去除空氣中的大部分二氧化碳，然后通過尾端的排氣扇將凈化后的空氣排出。

Project manager Lukas Kaufmann said "very selective filter material inside our collector containers" catch carbon dioxide.

項目經理盧卡斯·考夫曼說，“收集器內部容器中精度很高的過濾物質”會捕獲二氧化碳。

"As soon as the filter is full, we close it off, and then we heat it up to around 100 degrees Celsius2" to separate the pure gas, Kaufmann added.

考夫曼說：“一旦過濾器滿了，我們就會關閉入口，然后將其加熱到100攝氏度”以分離出二氧化碳。

Dissolved in fresh water, the gas is then injected under high pressure into the basalt rock between 800 and 2,000 metres underground.

二氧化碳在淡水中溶解后就會通過高壓注入地下800米到2000米深的玄武巖中。

The solution fills the rock's cavities and the solidification3 process begins -- a chemical reaction turning it to calcified4 white crystals that occurs when the gas comes in contact with the calcium5, magnesium6 and iron in the basalt.

溶液填滿巖石的縫隙，凝固過程就開始了。當二氧化碳接觸到玄武巖中的鈣、鎂和鐵，就會產生化學反應，轉變成鈣化白色晶體。

It takes up to two years for the CO2 to petrify7.

讓二氧化碳石化需要兩年時間。

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