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Potential for large-scale CO2 removal via enhanced rock weathering with croplands 期刊论文
NATURE, 2020, 583 (7815) : 242-+
作者:  David J. Beerling;  Euripides P. Kantzas;  Mark R. Lomas;  Peter Wade;  Rafael M. Eufrasio;  Phil Renforth;  Binoy Sarkar;  M. Grace Andrews;  Rachael H. James;  Christopher R. Pearce;  Jean-Francois Mercure;  Hector Pollitt;  Philip B. Holden;  Neil R. Edwards;  Madhu Khanna;  Lenny Koh;  Shaun Quegan;  Nick F. Pidgeon;  Ivan A. Janssens;  James Hansen;  Steven A. Banwart
收藏  |  浏览/下载:17/0  |  提交时间:2020/07/14

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 change(1). ERW also has possible co-benefits for improved food and soil security, and reduced ocean acidification(2-4). 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 business-as-usual energy policies and policies consistent with limiting future warming to 2 degrees Celsius(5). China, India, the USA and Brazil have great potential to help achieve average global CDR goals of 0.5 to 2gigatonnes of carbon dioxide (CO2) per year with extraction costs of approximately US$80-180 per tonne of CO2. These goals and costs are robust, regardless of future energy policies. Deployment within existing croplands offers opportunities to align agriculture and climate policy. However, success will depend upon overcoming political and social inertia to develop regulatory and incentive frameworks. We discuss the challenges and opportunities of ERW deployment, including the potential for excess industrial silicate materials (basalt mine overburden, concrete, and iron and steel slag) to obviate the need for new mining, as well as uncertainties in soil weathering rates and land-ocean transfer of weathered products.


  
Short term policies to keep the door open for Paris climate goals 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (7)
作者:  Kriegler, Elmar;  Bertram, Christoph;  Kuramochi, Takeshi;  Jakob, Michael;  Pehl, Michaja;  Stevanovic, Miodrag;  Hoehne, Niklas;  Luderer, Gunnar;  Minx, Jan C.;  Fekete, Hanna;  Hilaire, Jerome;  Luna, Lisa;  Popp, Alexander;  Steckel, Jan Christoph;  Sterl, Sebastian;  Yalew, AmsaluWoldie;  Dietrich, Jan Philipp;  Edenhofer, Ottmar
收藏  |  浏览/下载:8/0  |  提交时间:2019/04/09
mitigation pathway  integrated assessment  regulatory policies  carbon pricing  political implementability  Paris Agreement  1.5 degrees C and 2 degrees C temperature limits  
Financial Incentives to Enable Clean Energy Deployment: Policy Overview and Good Practices 科技报告
来源:US Department of Energy (DOE). 出版年: 2016
作者:  Cox, Sadie
收藏  |  浏览/下载:7/0  |  提交时间:2019/04/05
financial incentives  regulatory policies  best practices  renewable energy targets  renewable energy  energy efficiency  clean energy strategies