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导读：根据巴黎气候协定，为了阻止气温比工业化前的平均水平上升1.5°C甚至2°C，本世纪后半叶必须从大气中清除数百或数千亿吨二氧化碳。目前，唯一的办法是种树，这一选择并非完全没有缺点。冰岛雷克雅未克郊外的奥卡碳捕集工厂打开风扇，从空气中吸收二氧化碳。该装置的目的是从大气中去除二氧化碳，并将其转化为岩石。封存一吨二氧化碳的成本大约在-美元之间,售价在每吨美元，客户排长队，包括微软、《经济学人》等公司，以及0多名个人…

CapturingcarbonSuckingmoneyfromthinairCustomersareliningupfortheworld’sfirstbigCO2-removalplantRemovingcarbondioxidefromtheairTheworld’sbiggestcarbon-removalplantswitchesonDespitehighprices,customersareliningupSHORTLYAFTER6pmonSeptember9th,theOrcacarbon-captureplant,justoutsideReykjavikinIceland,switchedonitsfansandbegansuckingcarbondioxidefromtheair.Thesoundwassubtle—abitlikeagurglingstream.Buttheplant’screatorshopeitwillmarkabigshiftinhumanity’sinteractionwiththeclimate.Orcais,fornow,thelargestinstallationintheinfant“directaircapture”industry,whichaimstoremoveCO2fromtheatmosphere.WhensealedundergroundsuchCO2countsas“negativeemissions”—anessentialbutunderdevelopedmethodfortacklingglobalwarming.Tostoptemperaturesrisingby1.5°Coreven2°Cabovepre-industrialaverages,aspertheParisclimateagreement,hundredsorthousandsofbillionsoftonnesofCO2willhavetoberemovedfromtheatmosphereinthesecondhalfofthecentury.Currently,theonlymeansofdoingthatisplantingtrees,anoptionthatisnotentirelywithoutdrawbacks.Treesburninwildfiresandcanbecutdown.Whenthishappens,muchofthecarbontheystoreescapes.TheOrcaplantshowsanotherway.Climeworks,the