publication . Article . 2014

Carbon dioxide efficiency of terrestrial enhanced weathering.

Moosdorf, Nils; Renforth, Philip; Hartmann, Jens;
Open Access
  • Published: 06 May 2014 Journal: Environmental Science & Technology, volume 48, pages 4,809-4,816 (issn: 0013-936X, eissn: 1520-5851, Copyright policy)
  • Publisher: American Chemical Society (ACS)
  • Country: United Kingdom
Abstract
Terrestrial enhanced weathering, the spreading of ultramafic silicate rock flour to enhance natural weathering rates, has been suggested as part of a strategy to reduce global atmospheric CO2 levels. We budget potential CO2 sequestration against associated CO2 emissions to assess the net CO2 removal of terrestrial enhanced weathering. We combine global spatial data sets of potential source rocks, transport networks, and application areas with associated CO2 emissions in optimistic and pessimistic scenarios. The results show that the choice of source rocks and material comminution technique dominate the CO2 efficiency of enhanced weathering. CO2 emissions from tr...
Subjects
free text keywords: General Chemistry, Environmental Chemistry, Source rock, Carbon dioxide, chemistry.chemical_compound, chemistry, Silicate, Enhanced weathering, Tonne, Carbon sequestration, Rock flour, Weathering, Environmental engineering, Environmental science
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publication . Article . 2014

Carbon dioxide efficiency of terrestrial enhanced weathering.

Moosdorf, Nils; Renforth, Philip; Hartmann, Jens;