{"title":"Built to remove carbon","authors":"Christopher Bataille","doi":"10.1126/science.adu7379","DOIUrl":null,"url":null,"abstract":"<div >According to current climate science, global temperatures will continue to rise until net carbon dioxide (CO<sub>2</sub>) emissions reach zero (<i>1</i>)—that is, when the amount of CO<sub>2</sub> added to the atmosphere is balanced by the amount removed. Given current projected emissions, 2 billion to 15 billion tonnes (Gt) of CO<sub>2</sub> may need to be removed from the atmosphere annually to meet the goal of the 2015 Paris Agreement to limit global warming below 2°C and preferably to 1.5°C above preindustrial temperatures (<i>2</i>, <i>3</i>). However, a sustainable technique to capture and permanently store such large amounts of CO<sub>2</sub> from the atmosphere is yet to be developed. On page 176 of this issue, Van Roijen <i>et al.</i> (<i>4</i>) report that replacing traditional building materials with CO<sub>2</sub>-storing alternatives could sequester carbon at the billion-tonne level. Considering the large human demands for infrastructure and buildings and their long lifetimes, the proposed strategy could provide feasible long-term CO<sub>2</sub> removal.</div>","PeriodicalId":21678,"journal":{"name":"Science","volume":"387 6730","pages":""},"PeriodicalIF":45.8000,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science","FirstCategoryId":"103","ListUrlMain":"https://www.science.org/doi/10.1126/science.adu7379","RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
According to current climate science, global temperatures will continue to rise until net carbon dioxide (CO2) emissions reach zero (1)—that is, when the amount of CO2 added to the atmosphere is balanced by the amount removed. Given current projected emissions, 2 billion to 15 billion tonnes (Gt) of CO2 may need to be removed from the atmosphere annually to meet the goal of the 2015 Paris Agreement to limit global warming below 2°C and preferably to 1.5°C above preindustrial temperatures (2, 3). However, a sustainable technique to capture and permanently store such large amounts of CO2 from the atmosphere is yet to be developed. On page 176 of this issue, Van Roijen et al. (4) report that replacing traditional building materials with CO2-storing alternatives could sequester carbon at the billion-tonne level. Considering the large human demands for infrastructure and buildings and their long lifetimes, the proposed strategy could provide feasible long-term CO2 removal.
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