Human and planetary health implications of negative emissions technologies

Meeting the 1.5 °C target may require removing up to 1,000 Gtonne CO(2) by 2100 with Negative Emissions Technologies (NETs). We evaluate the impacts of Direct Air Capture and Bioenergy with Carbon Capture and Storage (DACCS and BECCS), finding that removing 5.9 Gtonne/year CO(2) can prevent <9·10...

Full description

Bibliographic Details
Published in:Nature Communications
Main Authors: Cobo, Selene, Galán-Martín, Ángel, Tulus, Victor, Huijbregts, Mark A. J., Guillén-Gosálbez, Gonzalo
Format: Text
Language:English
Published: Nature Publishing Group UK 2022
Subjects:
Article
Ocean acidification
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9085842/
http://www.ncbi.nlm.nih.gov/pubmed/35534480
https://doi.org/10.1038/s41467-022-30136-7
Description
Summary:Meeting the 1.5 °C target may require removing up to 1,000 Gtonne CO(2) by 2100 with Negative Emissions Technologies (NETs). We evaluate the impacts of Direct Air Capture and Bioenergy with Carbon Capture and Storage (DACCS and BECCS), finding that removing 5.9 Gtonne/year CO(2) can prevent <9·10(2) disability-adjusted life years per million people annually, relative to a baseline without NETs. Avoiding this health burden—similar to that of Parkinson’s—can save substantial externalities (≤148 US$/tonne CO(2)), comparable to the NETs levelized costs. The health co-benefits of BECCS, dependent on the biomass source, can exceed those of DACCS. Although both NETs can help to operate within the climate change and ocean acidification planetary boundaries, they may lead to trade-offs between Earth-system processes. Only DACCS can avert damage to the biosphere integrity without challenging other biophysical limits (impacts ≤2% of the safe operating space). The quantified NETs co-benefits can incentivize their adoption.

Similar Items