The role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs
Abstract: Meeting the net-zero carbon emissions commitments of major economies by mid-century requires large-scale deployment of negative emission technologies (NETs). Terrestrial enhanced rock weathering on croplands (ERW) is a NET with co-benefits for agriculture, soils and ocean acidification tha...
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ftunivcam:oai:www.repository.cam.ac.uk:1810/327191 2023-07-30T04:06:01+02:00 The role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs Vakilifard, Negar Kantzas, Euripides P Edwards, Neil R Holden, Philip B Beerling, David J 2021-08-26T18:31:43Z text/xml application/pdf https://doi.org/10.17863/CAM.74640 https://www.repository.cam.ac.uk/handle/1810/327191 en eng IOP Publishing Environmental Research Letters doi:10.17863/CAM.74640 https://www.repository.cam.ac.uk/handle/1810/327191 Letter coral reefs enhanced rock weathering Earth system model ocean acidification Paris agreement temperature targets RCP2.6 Other 2021 ftunivcam https://doi.org/10.17863/CAM.74640 2023-07-10T21:26:52Z Abstract: Meeting the net-zero carbon emissions commitments of major economies by mid-century requires large-scale deployment of negative emission technologies (NETs). Terrestrial enhanced rock weathering on croplands (ERW) is a NET with co-benefits for agriculture, soils and ocean acidification that creates opportunities for generating income unaffected by diminishing carbon taxes as emissions approach net-zero. Here we show that ERW deployment with croplands to deliver net 2 Gt CO2 yr−1 removal approximately doubles the probability of meeting the Paris 1.5 °C target at 2100 from 23% to 42% in a high mitigation Representative Concentration Pathway 2.6 baseline climate. Carbon removal via carbon capture and storage (CCS) at the same rate had an equivalent effect. Co-deployment of ERW and CCS tripled the chances of meeting a 1.5 °C target (from 23% to 67%), and may be sufficient to reverse about one third of the surface ocean acidification effect caused by increases in atmospheric CO2 over the past 200 years. ERW increased the percentage of coral reefs above an aragonite saturation threshold of 3.5 from 16% to 39% at 2100, higher than CCS, highlighting a co-benefit for marine calcifying ecosystems. However, the degree of ocean state recovery in our simulations is highly uncertain and ERW deployment cannot substitute for near-term rapid CO2 emissions reductions. Other/Unknown Material Ocean acidification Apollo - University of Cambridge Repository |
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Apollo - University of Cambridge Repository |
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ftunivcam |
language |
English |
topic |
Letter coral reefs enhanced rock weathering Earth system model ocean acidification Paris agreement temperature targets RCP2.6 |
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Letter coral reefs enhanced rock weathering Earth system model ocean acidification Paris agreement temperature targets RCP2.6 Vakilifard, Negar Kantzas, Euripides P Edwards, Neil R Holden, Philip B Beerling, David J The role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs |
topic_facet |
Letter coral reefs enhanced rock weathering Earth system model ocean acidification Paris agreement temperature targets RCP2.6 |
description |
Abstract: Meeting the net-zero carbon emissions commitments of major economies by mid-century requires large-scale deployment of negative emission technologies (NETs). Terrestrial enhanced rock weathering on croplands (ERW) is a NET with co-benefits for agriculture, soils and ocean acidification that creates opportunities for generating income unaffected by diminishing carbon taxes as emissions approach net-zero. Here we show that ERW deployment with croplands to deliver net 2 Gt CO2 yr−1 removal approximately doubles the probability of meeting the Paris 1.5 °C target at 2100 from 23% to 42% in a high mitigation Representative Concentration Pathway 2.6 baseline climate. Carbon removal via carbon capture and storage (CCS) at the same rate had an equivalent effect. Co-deployment of ERW and CCS tripled the chances of meeting a 1.5 °C target (from 23% to 67%), and may be sufficient to reverse about one third of the surface ocean acidification effect caused by increases in atmospheric CO2 over the past 200 years. ERW increased the percentage of coral reefs above an aragonite saturation threshold of 3.5 from 16% to 39% at 2100, higher than CCS, highlighting a co-benefit for marine calcifying ecosystems. However, the degree of ocean state recovery in our simulations is highly uncertain and ERW deployment cannot substitute for near-term rapid CO2 emissions reductions. |
format |
Other/Unknown Material |
author |
Vakilifard, Negar Kantzas, Euripides P Edwards, Neil R Holden, Philip B Beerling, David J |
author_facet |
Vakilifard, Negar Kantzas, Euripides P Edwards, Neil R Holden, Philip B Beerling, David J |
author_sort |
Vakilifard, Negar |
title |
The role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs |
title_short |
The role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs |
title_full |
The role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs |
title_fullStr |
The role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs |
title_full_unstemmed |
The role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs |
title_sort |
role of enhanced rock weathering deployment with agriculture in limiting future warming and protecting coral reefs |
publisher |
IOP Publishing |
publishDate |
2021 |
url |
https://doi.org/10.17863/CAM.74640 https://www.repository.cam.ac.uk/handle/1810/327191 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
doi:10.17863/CAM.74640 https://www.repository.cam.ac.uk/handle/1810/327191 |
op_doi |
https://doi.org/10.17863/CAM.74640 |
_version_ |
1772818365268623360 |