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Last glacial atmospheric CO(2)decline due to widespread Pacific deep-water expansion 期刊论文
NATURE GEOSCIENCE, 2020
作者:  Yu, J.;  Menviel, L.;  Jin, Z. D.;  Anderson, R. F.;  Jian, Z.;  Piotrowski, A. M.;  Ma, X.;  Rohling, E. J.;  Zhang, F.;  Marino, G.;  McManus, J. F.
收藏  |  浏览/下载:12/0  |  提交时间:2020/08/09
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:18/0  |  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.


  
Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (29) : 17084-17093
作者:  Chiarenza, Alfio Alessandro;  Farnsworth, Alexander;  Mannion, Philip D.;  Lunt, Daniel J.;  Valdes, Paul J.;  Morgan, Joanna, V;  Allison, Peter A.
收藏  |  浏览/下载:17/0  |  提交时间:2020/07/06
Dinosauria  extinction  end-Cretaceous  Chicxulub  Deccan  
Observed changes in dry-season water availability attributed to human-induced climate change 期刊论文
NATURE GEOSCIENCE, 2020, 13 (7) : 477-+
作者:  Padron, Ryan S.;  Gudmundsson, Lukas;  Decharme, Bertrand;  Ducharne, Agnes;  Lawrence, David M.;  Mao, Jiafu;  Peano, Daniele;  Krinner, Gerhard;  Kim, Hyungjun;  Seneviratne, Sonia I.
收藏  |  浏览/下载:14/0  |  提交时间:2020/07/06
Southern Ocean carbon sink enhanced by sea-ice feedbacks at the Antarctic Cold Reversal 期刊论文
NATURE GEOSCIENCE, 2020, 13 (7) : 489-+
作者:  Fogwill, C. J.;  Turney, C. S. M.;  Menviel, L.;  Baker, A.;  Weber, M. E.;  Ellis, B.;  Thomas, Z. A.;  Golledge, N. R.;  Etheridge, D.;  Rubino, M.;  Thornton, D. P.;  van Ommen, T. D.;  Moy, A. D.;  Curran, M. A. J.;  Davies, S.;  Bird, M., I;  Munksgaard, N. C.;  Rootes, C. M.;  Millman, H.;  Vohra, J.;  Rivera, A.;  Mackintosh, A.;  Pike, J.;  Hall, I. R.;  Bagshaw, E. A.;  Rainsley, E.;  Bronk-Ramsey, C.;  Montenari, M.;  Cage, A. G.;  Harris, M. R. P.;  Jones, R.;  Power, A.;  Love, J.;  Young, J.;  Weyrich, L. S.;  Cooper, A.
收藏  |  浏览/下载:14/0  |  提交时间:2020/06/29
Widespread subsidence and carbon emissions across Southeast Asian peatlands 期刊论文
NATURE GEOSCIENCE, 2020, 13 (6) : 435-+
作者:  Hoyt, Alison M.;  Chaussard, Estelle;  Seppalainen, Sandra S.;  Harvey, Charles F.
收藏  |  浏览/下载:6/0  |  提交时间:2020/06/09
Chesapeake Bay acidification buffered by spatially decoupled carbonate mineral cycling 期刊论文
NATURE GEOSCIENCE, 2020, 13 (6) : 441-+
作者:  Su, Jianzhong;  Cai, Wei-Jun;  Brodeur, Jean;  Chen, Baoshan;  Hussain, Najid;  Yao, Yichen;  Ni, Chaoying;  Testa, Jeremy M.;  Li, Ming;  Xie, Xiaohui;  Ni, Wenfei;  Scaboo, K. Michael;  Xu, Yuan-yuan;  Cornwell, Jeffrey;  Gurbisz, Cassie;  Owens, Michael S.;  Waldbusser, George G.;  Dai, Minhan;  Kemp, W. Michael
收藏  |  浏览/下载:9/0  |  提交时间:2020/06/09
Estimating US fossil fuel CO2 emissions from measurements of C-14 in atmospheric CO2 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (24) : 13300-13307
作者:  Basu, Sourish;  Lehman, Scott J.;  Miller, John B.;  Andrews, Arlyn E.;  Sweeney, Colm;  Gurney, Kevin R.;  Xu, Xiaomei;  Southon, John;  Tans, Pieter P.
收藏  |  浏览/下载:14/0  |  提交时间:2020/06/09
fossil fuel CO2  radiocarbon  atmospheric inverse modeling  
Subpolar marginal seas fuel the North Pacific through the intermediate water at the termination of the ocean circulation 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (23) : 12665-12673
作者:  Nishioka, Jun;  Obata, Hajime;  Ogawa, Hiroshi;  Ono, Kazuya;  Yamashita, Youhei;  Lee, Keunjong;  Takeda, Shigenobu;  Yasuda, Ichiro
收藏  |  浏览/下载:11/0  |  提交时间:2020/06/01
dissolved iron  macronutrients  North Pacific Ocean  island chains mixing  GEOTRACES  
Significant methane ebullition from alpine permafrost rivers on the East Qinghai-Tibet Plateau 期刊论文
NATURE GEOSCIENCE, 2020, 13 (5)
作者:  Zhang, Liwei;  Xia, Xinghui;  Liu, Shaoda;  Zhang, Sibo;  Li, Siling;  Wang, Junfeng;  Wang, Gongqin;  Gao, Hui;  Zhang, Zhenrui;  Wang, Qingrui;  Wen, Wu;  Liu, Ran;  Yang, Zhifeng;  Stanley, Emily H.;  Raymond, Peter A.
收藏  |  浏览/下载:11/0  |  提交时间:2020/05/13