scholarly journals How Low Can We Go? The Implications of Delayed Ratcheting and Negative Emissions Technologies on Achieving Well Below 2 °C

2018 ◽  
pp. 51-65 ◽  
Author(s):  
Matthew Winning ◽  
Steve Pye ◽  
James Glynn ◽  
Daniel Scamman ◽  
Daniel Welsby
Keyword(s):  
Negative Emissions

The Potential of Photoelectrochemical Carbon Sinks

2018 ◽  
Author(s):  
Matthias May ◽  
Kira Rehfeld
Keyword(s):  
Global Warming ◽  
High Temperature ◽  
Greenhouse Gas ◽  
Large Scale ◽  
High Efficiency ◽  
Carbon Sink ◽  
Solar Fuels ◽  
Negative Emissions ◽  
Viable Approach ◽  
Low Sensitivity

Greenhouse gas emissions must be cut to limit global warming to 1.5-2C above preindustrial levels. Yet the rate of decarbonisation is currently too low to achieve this. Policy-relevant scenarios therefore rely on the permanent removal of CO<sub>2</sub> from the atmosphere. However, none of the envisaged technologies has demonstrated scalability to the decarbonization targets for the year 2050. In this analysis, we show that artificial photosynthesis for CO<sub>2</sub> reduction may deliver an efficient large-scale carbon sink. This technology is mainly developed towards solar fuels and its potential for negative emissions has been largely overlooked. With high efficiency and low sensitivity to high temperature and illumination conditions, it could, if developed towards a mature technology, present a viable approach to fill the gap in the negative emissions budget.<br>

The Potential of Photoelectrochemical Carbon Sinks

2018 ◽  
Author(s):  
Matthias May ◽  
Kira Rehfeld
Keyword(s):  
Global Warming ◽  
High Temperature ◽  
Greenhouse Gas ◽  
Large Scale ◽  
High Efficiency ◽  
Carbon Sink ◽  
Solar Fuels ◽  
Negative Emissions ◽  
Viable Approach ◽  
Low Sensitivity

Greenhouse gas emissions must be cut to limit global warming to 1.5-2C above preindustrial levels. Yet the rate of decarbonisation is currently too low to achieve this. Policy-relevant scenarios therefore rely on the permanent removal of CO<sub>2</sub> from the atmosphere. However, none of the envisaged technologies has demonstrated scalability to the decarbonization targets for the year 2050. In this analysis, we show that artificial photosynthesis for CO<sub>2</sub> reduction may deliver an efficient large-scale carbon sink. This technology is mainly developed towards solar fuels and its potential for negative emissions has been largely overlooked. With high efficiency and low sensitivity to high temperature and illumination conditions, it could, if developed towards a mature technology, present a viable approach to fill the gap in the negative emissions budget.<br>

Minimising Beccs Resource Use for Negative Emissions

2019 ◽  
Author(s):  
Mathilde Fajardy ◽  
Niall Mac Dowell
Keyword(s):  
Resource Use ◽  
Negative Emissions

Learning from the Climate Change Debate to Avoid Polarisation on Negative Emissions

2019 ◽  
Vol 14 (1) ◽  
pp. 23-35 ◽  
Author(s):  
R. M. Colvin ◽  
Luke Kemp ◽  
Anita Talberg ◽  
Clare De Castella ◽  
C. Downie ◽  
...  
Keyword(s):  
Climate Change ◽  
Negative Emissions

scholarly journals 1.5 °C degrowth scenarios suggest the need for new mitigation pathways

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Lorenz T. Keyßer ◽  
Manfred Lenzen
Keyword(s):  
Technological Change ◽  
High Speed ◽  
Large Scale ◽  
High Energy ◽  
Climate Mitigation ◽  
Intergovernmental Panel ◽  
Economic Output ◽  
Integrated Assessment Modelling ◽  
Negative Emissions ◽  
Energy Emissions

Abstract1.5  °C scenarios reported by the Intergovernmental Panel on Climate Change (IPCC) rely on combinations of controversial negative emissions and unprecedented technological change, while assuming continued growth in gross domestic product (GDP). Thus far, the integrated assessment modelling community and the IPCC have neglected to consider degrowth scenarios, where economic output declines due to stringent climate mitigation. Hence, their potential to avoid reliance on negative emissions and speculative rates of technological change remains unexplored. As a first step to address this gap, this paper compares 1.5  °C degrowth scenarios with IPCC archetype scenarios, using a simplified quantitative representation of the fuel-energy-emissions nexus. Here we find that the degrowth scenarios minimize many key risks for feasibility and sustainability compared to technology-driven pathways, such as the reliance on high energy-GDP decoupling, large-scale carbon dioxide removal and large-scale and high-speed renewable energy transformation. However, substantial challenges remain regarding political feasibility. Nevertheless, degrowth pathways should be thoroughly considered.

scholarly journals A nature-based negative emissions technology able to remove atmospheric methane and other greenhouse gases

2021 ◽  
Author(s):  
Tingzhen Ming ◽  
Renaud de Richter ◽  
Franz Dietrich Oeste ◽  
Robert Tulip ◽  
Sylvain Caillol
Keyword(s):  
Greenhouse Gases ◽  
Atmospheric Methane ◽  
Negative Emissions

Investing in negative emissions

2015 ◽  
Vol 5 (6) ◽  
pp. 498-500 ◽  
Author(s):  
Guy Lomax ◽  
Timothy M. Lenton ◽  
Adepeju Adeosun ◽  
Mark Workman
Keyword(s):  
Negative Emissions

Land-based implications of early climate actions without global net-negative emissions

2021 ◽  
Author(s):  
Tomoko Hasegawa ◽  
Shinichiro Fujimori ◽  
Stefan Frank ◽  
Florian Humpenöder ◽  
Christoph Bertram ◽  
...  
Keyword(s):  
Negative Emissions

scholarly journals Potential for negative emissions of greenhouse gases (CO 2 , CH 4 and N 2 O) through coastal peatland re-establishment: Novel insights from high frequency flux data at meter and kilometer scales

2018 ◽  
Vol 13 (4) ◽  
pp. 045005 ◽  
Author(s):  
Lisamarie Windham-Myers ◽  
Brian Bergamaschi ◽  
Frank Anderson ◽  
Sara Knox ◽  
Robin Miller ◽  
...  
Keyword(s):  
Greenhouse Gases ◽  
High Frequency ◽  
Flux Data ◽  
Negative Emissions
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