Diverse carbon dioxide removal approaches could reduce impacts on the energy–water–land system

Nature Climate Change, Journal Year: 2023, Volume and Issue: 13(4), P. 341 - 350

Published: March 9, 2023

Language: Английский

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Net-zero emissions chemical industry in a world of limited resources

One Earth, Journal Year: 2023, Volume and Issue: 6(6), P. 682 - 704

Published: May 29, 2023

The chemical industry is responsible for about 5% of global CO2 emissions and key to achieving net-zero targets. Decarbonizing this industry, nevertheless, faces particular challenges given the widespread use carbon-rich raw materials, need high-temperature heat, complex value chains. Multiple technology routes are now available producing chemicals with based on biomass, recycling, carbon capture, utilization, storage. However, extent which these viable respect local availability energy natural resources remains unclear. In review, we compare by quantifying their energy, land, water requirements corresponding induced resource scarcity at country level further discuss technical environmental viability a industry. We find that will require location-specific integrated solutions combine circular approaches demand-side measures might result in reshaping trade.

Language: Английский

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Environmental trade-offs of direct air capture technologies in climate change mitigation toward 2100

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: June 25, 2022

Abstract Direct air capture (DAC) is critical for achieving stringent climate targets, yet the environmental implications of its large-scale deployment have not been evaluated in this context. Performing a prospective life cycle assessment two promising technologies series change mitigation scenarios, we find that electricity sector decarbonization and DAC technology improvements are both indispensable to avoid problem-shifting. Decarbonizing improves sequestration efficiency, but also increases terrestrial ecotoxicity metal depletion levels per tonne CO 2 sequestered via DAC. These can be reduced by material energy use efficiencies. exhibits regional impact variations, highlighting importance smart siting related system planning integration. aids achievement long-term performance however depend on sectoral actions, thus should suggest relaxation targets.

Language: Английский

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The role of carbon capture and storage to achieve net-zero energy systems: Trade-offs between economics and the environment

Renewable and Sustainable Energy Reviews, Journal Year: 2023, Volume and Issue: 178, P. 113246 - 113246

Published: March 20, 2023

Carbon capture and storage can both reduce greenhouse gas emissions provide negative to contribute the transition a net-zero society. The contribution of carbon has been investigated within cross-sectorial energy system models. However, such models commonly focus on cost emissions, while broader environmental impacts are for individual technologies only. Here, we analyze economic by combining modeling with life-cycle assessment. We system-wide implications dioxide or impacts. In our investigation German until 2045, require minimal amount storage. increasing beyond minimum significantly lowers in up 13 out 16 impact categories avoiding investments into material-intensive technologies, as power-to-methane renewable power plants areas low generation potential. scenarios without electricity imports, ranges between 118 Mt 379 2045 105 % when is minimized. 84 increase incurred eliminating final 23 stored. benefits applying robust variations imports residual that compensation. Hence, results suggest offer systems emission mitigation.

Language: Английский

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A comprehensive review of carbon capture science and technologies

Carbon Capture Science & Technology, Journal Year: 2023, Volume and Issue: 11, P. 100178 - 100178

Published: Dec. 10, 2023

Language: Английский

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Considering technology characteristics to project future costs of direct air capture

Joule, Journal Year: 2024, Volume and Issue: 8(4), P. 979 - 999

Published: March 1, 2024

Several low-carbon technologies, such as solar photovoltaics or batteries, have experienced massive cost reductions in the recent past. However, non-mature technologies will also be required to meet Paris climate targets. The of novel like direct air capture (DAC) remains highly uncertain. Here, we introduce a new method project future costs by assigning empirically grounded experience rates technology components based on their similarity mature terms design complexity and customization needs. After an ex-post validation this method, apply it three DAC combined with CO2 transport storage (DACCS) provide probabilistic estimates net removed. At 1 Gt-CO2/year cumulative capacity, DACCS at $341/tCO2 ($226–$544 90% confidence) for liquid solvent DACCS, $374/tCO2 ($281–$579) solid sorbent $371/tCO2 ($230–$835) CaO ambient weathering DACCS.

Language: Английский

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Recent advances, challenges, and perspectives on carbon capture

Frontiers of Environmental Science & Engineering, Journal Year: 2024, Volume and Issue: 18(6)

Published: April 10, 2024

Abstract Carbon capture, utilization and storage (CCUS) technologies play an essential role in achieving Net Zero Emissions targets. Considering the lack of timely reviews on recent advancements promising CCUS technologies, it is crucial to provide a prompt review advances understand current research gaps pertained its industrial application. To that end, this first summarized developmental history large-scale demonstrations. Then, based visually bibliometric analysis, carbon capture remains hotspot development. Noting materials applied process determines performance. As result, state-of-the-art emerging were comprehensively discussed. Gaps between state-of-art ideal counterpart are analyzed, insights into needs such as material design, optimization, environmental impact, technical economic assessments provided.

Language: Английский

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The synergistic role of carbon dioxide removal and emission reductions in achieving the Paris Agreement goal

Sustainable Production and Consumption, Journal Year: 2024, Volume and Issue: 45, P. 386 - 407

Published: Jan. 21, 2024

Language: Английский

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Reducing sectoral hard-to-abate emissions to limit reliance on carbon dioxide removal

Nature Climate Change, Journal Year: 2024, Volume and Issue: 14(7), P. 715 - 722

Published: June 7, 2024

Abstract To reach net-zero greenhouse gas targets, carbon dioxide removal (CDR) technologies are required to compensate for residual emissions in the hard-to-abate sectors. However, dependencies on CDR involve environmental, technical and social risks, particularly related increased land requirements afforestation bioenergy crops. Here, using scenarios consistent with 1.5 °C target, we show that demand technological interventions can substantially lower emission levels four sectors (industry, agriculture, buildings transport) reduce reliance use of capture storage. Specifically, measures technology-oriented could limit peak annual storage 0.5–2.2 GtCO 2 e per year 1.9–7.0 year, respectively, compared 10.3 default scenario. Dietary change plays a critical role given its large share agricultural emissions.

Language: Английский

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A comprehensive review of life cycle assessments of direct air capture and carbon dioxide storage

Sustainable Production and Consumption, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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