The negative emission potential of alkaline materials

7 billion tonnes of alkaline materials are produced globally each year as a product or by-product of industrial activity. The aqueous dissolution of these materials creates high pH solutions that dissolves CO2 to store carbon in the form of solid carbonate minerals or dissolved bicarbonate ions. Here we show that these materials have a carbon dioxide storage potential of 2.9–8.5 billion tonnes per year by 2100, and may contribute a substantial proportion of the negative emissions required to limit global temperature change to <2 °C. The potential of biomass energy carbon capture and storage is unclear. Here the authors estimated the negative emissions potential from highly alkaline materials, by-products and wastes and showed that these materials have a CO2 storage potential of 2.5–7.5 billion tonnes per year by 2100.

• Publication year

  2019

• Venue

  Nature Communications

• Publication date

  2019-03-28

• Fields of study

  Medicine, Environmental Science

• Identifiers
  DOI 10.1038/s41467-019-09475-5PMID 30923316PMCID 6438983
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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