Potential for large-scale CO2 removal via enhanced rock weathering with croplands

@article{Beerling2020PotentialFL,
  title={Potential for large-scale CO2 removal via enhanced rock weathering with croplands},
  author={D. Beerling and E. Kantzas and M. Lomas and P. Wade and Rafael M. Eufrasio and P. Renforth and B. Sarkar and M. Andrews and R. James and C. Pearce and J. Mercure and H. Pollitt and P. Holden and N. Edwards and M. Khanna and L. Koh and S. Quegan and N. Pidgeon and I. Janssens and J. Hansen and S. Banwart},
  journal={Nature},
  year={2020},
  volume={583},
  pages={242 - 248}
}
Enhanced silicate rock weathering (ERW), deployable with croplands, has potential use for atmospheric carbon dioxide (CO2) removal (CDR), which is now necessary to mitigate anthropogenic climate change1. ERW also has possible co-benefits for improved food and soil security, and reduced ocean acidification2–4. Here we use an integrated performance modelling approach to make an initial techno-economic assessment for 2050, quantifying how CDR potential and costs vary among nations in relation to… Expand
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References

SHOWING 1-10 OF 139 REFERENCES
Potential of global croplands and bioenergy crops for climate change mitigation through deployment for enhanced weathering
TLDR
Enhanced weathering in agricultural soils is a method for combating global climate change while increasing nutrient availability to plants and employing these soils to sequester atmospheric C while benefitting crop production and the global climate. Expand
Farming with crops and rocks to address global climate, food and soil security
TLDR
Biogeochemical improvement of soils by adding crushed, fast-reacting silicate rocks to croplands could improve productivity, restore soil quality and reduce atmospheric CO2. Expand
Simulating carbon capture by enhanced weathering with croplands: an overview of key processes highlighting areas of future model development
TLDR
The processes leading to soil acidification in croplands and how the soil weathering CO2 sink is represented in models are reviewed and it is argued for further integration of process knowledge in mathematical models to capture feedbacks affecting both longer-term CO2 consumption and crop growth and yields. Expand
Potential and costs of carbon dioxide removal by enhanced weathering of rocks
The chemical weathering of rocks currently absorbs about 1.1 Gt CO2 a−1 being mainly stored as bicarbonate in the ocean. An enhancement of this slow natural process could remove substantial amountsExpand
The potential of agricultural land management to contribute to lower global surface temperatures
TLDR
It is shown that sequestration of 0.68 Pg C year−1 for 85 years could lower global temperature by 0.1°C in 2100 when combined with a low emission trajectory [Representative Concentration Pathway (RCP) 2.6]. Expand
Enhanced weathering strategies for stabilizing climate and averting ocean acidification
The chemical breakdown of rocks can be enhanced by spreading silicate granules over land. Research suggests that this measure, which increases the rate at which CO2 is locked up in ocean carbonates,Expand
Carbon dioxide efficiency of terrestrial enhanced weathering.
TLDR
The results show that the choice of source rocks and material comminution technique dominate the CO2 efficiency ofEnhanced weathering, and to control or reduce atmospheric CO2 concentrations substantially with enhanced weathering would require very large amounts of rock. Expand
Biomass-based negative emissions difficult to reconcile with planetary boundaries
Under the Paris Agreement, 195 nations have committed to holding the increase in the global average temperature to well below 2 °C above pre-industrial levels and to strive to limit the increase toExpand
Land-Management Options for Greenhouse Gas Removal and Their Impacts on Ecosystem Services and the Sustainable Development Goals
Land-management options for greenhouse gas removal (GGR) include afforestation or reforestation (AR), wetland restoration, soil carbon sequestration (SCS), biochar, terrestrial enhanced weatheringExpand
Tradeoffs in using European forests to meet climate objectives
TLDR
Simulations of commonly proposed forest-management portfolios for Europe show that no single portfolio would meet all the requirements of the Paris Agreement, and climate benefits from forest management would be modest and local, rather than global. Expand
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