Articles | Volume 12, issue 1
https://doi.org/10.5194/cp-12-1-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/cp-12-1-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
15 Jan 2016
Research article |
| 15 Jan 2016
Evidence of a prolonged drought ca. 4200 yr BP correlated with prehistoric settlement abandonment from the Gueldaman GLD1 Cave, Northern Algeria
Laboratoire des Sciences du Climat et de l'Environnement,
Gif-sur-Yvette, France
Laboratoire Géosciences Paris Sud, UMR 8148, Université
Paris-Sud, Orsay, France
F. Kherbouche
Centre National de Recherches Préhistoriques, Anthropologiqes et
Historiques, Algiers, Algeria
D. Genty
Laboratoire des Sciences du Climat et de l'Environnement,
Gif-sur-Yvette, France
D. Blamart
Laboratoire des Sciences du Climat et de l'Environnement,
Gif-sur-Yvette, France
H. Cheng
Institute of Global Environmental Change, Xi'an Jiaotong University,
Xi'an, China
Department of Geological Sciences, University of Minnesota, Minnesota,
USA
F. Dewilde
Laboratoire des Sciences du Climat et de l'Environnement,
Gif-sur-Yvette, France
S. Hachi
Centre National de Recherches Préhistoriques, Anthropologiqes et
Historiques, Algiers, Algeria
R. L. Edwards
Department of Geological Sciences, University of Minnesota, Minnesota,
USA
E. Régnier
Laboratoire des Sciences du Climat et de l'Environnement,
Gif-sur-Yvette, France
J.-L. Michelot
Laboratoire Géosciences Paris Sud, UMR 8148, Université
Paris-Sud, Orsay, France
Related authors
Nikita Kaushal, Franziska A. Lechleitner, Micah Wilhelm, Khalil Azennoud, Janica C. Bühler, Kerstin Braun, Yassine Ait Brahim, Andy Baker, Yuval Burstyn, Laia Comas-Bru, Jens Fohlmeister, Yonaton Goldsmith, Sandy P. Harrison, István G. Hatvani, Kira Rehfeld, Magdalena Ritzau, Vanessa Skiba, Heather M. Stoll, József G. Szűcs, Péter Tanos, Pauline C. Treble, Vitor Azevedo, Jonathan L. Baker, Andrea Borsato, Sakonvan Chawchai, Andrea Columbu, Laura Endres, Jun Hu, Zoltán Kern, Alena Kimbrough, Koray Koç, Monika Markowska, Belen Martrat, Syed Masood Ahmad, Carole Nehme, Valdir Felipe Novello, Carlos Pérez-Mejías, Jiaoyang Ruan, Natasha Sekhon, Nitesh Sinha, Carol V. Tadros, Benjamin H. Tiger, Sophie Warken, Annabel Wolf, Haiwei Zhang, and SISAL Working Group members
Earth Syst. Sci. Data, 16, 1933–1963, https://doi.org/10.5194/essd-16-1933-2024, https://doi.org/10.5194/essd-16-1933-2024, 2024
Short summary
Short summary
Speleothems are a popular, multi-proxy climate archive that provide regional to global insights into past hydroclimate trends with precise chronologies. We present an update to the SISAL (Speleothem Isotopes
Synthesis and AnaLysis) database, SISALv3, which, for the first time, contains speleothem trace element records, in addition to an update to the stable isotope records available in previous versions of the database, cumulatively providing data from 365 globally distributed sites.
Synthesis and AnaLysis) database, SISALv3, which, for the first time, contains speleothem trace element records, in addition to an update to the stable isotope records available in previous versions of the database, cumulatively providing data from 365 globally distributed sites.
Nikita Kaushal, Franziska A. Lechleitner, Micah Wilhelm, Khalil Azennoud, Janica C. Bühler, Kerstin Braun, Yassine Ait Brahim, Andy Baker, Yuval Burstyn, Laia Comas-Bru, Jens Fohlmeister, Yonaton Goldsmith, Sandy P. Harrison, István G. Hatvani, Kira Rehfeld, Magdalena Ritzau, Vanessa Skiba, Heather M. Stoll, József G. Szűcs, Péter Tanos, Pauline C. Treble, Vitor Azevedo, Jonathan L. Baker, Andrea Borsato, Sakonvan Chawchai, Andrea Columbu, Laura Endres, Jun Hu, Zoltán Kern, Alena Kimbrough, Koray Koç, Monika Markowska, Belen Martrat, Syed Masood Ahmad, Carole Nehme, Valdir Felipe Novello, Carlos Pérez-Mejías, Jiaoyang Ruan, Natasha Sekhon, Nitesh Sinha, Carol V. Tadros, Benjamin H. Tiger, Sophie Warken, Annabel Wolf, Haiwei Zhang, and SISAL Working Group members
Earth Syst. Sci. Data, 16, 1933–1963, https://doi.org/10.5194/essd-16-1933-2024, https://doi.org/10.5194/essd-16-1933-2024, 2024
Short summary
Short summary
Speleothems are a popular, multi-proxy climate archive that provide regional to global insights into past hydroclimate trends with precise chronologies. We present an update to the SISAL (Speleothem Isotopes
Synthesis and AnaLysis) database, SISALv3, which, for the first time, contains speleothem trace element records, in addition to an update to the stable isotope records available in previous versions of the database, cumulatively providing data from 365 globally distributed sites.
Synthesis and AnaLysis) database, SISALv3, which, for the first time, contains speleothem trace element records, in addition to an update to the stable isotope records available in previous versions of the database, cumulatively providing data from 365 globally distributed sites.
Eva Ferreira, Stanley Nmor, Eric Viollier, Bruno Lansard, Bruno Bombled, Edouard Regnier, Gaël Monvoisin, Christian Grenz, Pieter van Beek, and Christophe Rabouille
Biogeosciences, 21, 711–729, https://doi.org/10.5194/bg-21-711-2024, https://doi.org/10.5194/bg-21-711-2024, 2024
Short summary
Short summary
The study provides new insights by examining the short-term impact of winter floods on biogeochemical sediment processes near the Rhône River (NW Mediterranean Sea). This is the first winter monitoring of sediment and porewater in deltaic areas. The coupling of these data with a new model enables us to quantify the evolution of biogeochemical processes. It also provides new perspectives on the benthic carbon cycle in river deltas considering climate change, whereby flooding should intensify.
Virgil Drăguşin, Sorin Balan, Dominique Blamart, Ferenc Lázár Forray, Constantin Marin, Ionuţ Mirea, Viorica Nagavciuc, Iancu Orăşeanu, Aurel Perşoiu, Laura Tîrlă, Alin Tudorache, and Marius Vlaicu
Hydrol. Earth Syst. Sci., 21, 5357–5373, https://doi.org/10.5194/hess-21-5357-2017, https://doi.org/10.5194/hess-21-5357-2017, 2017
Timothé Bolliet, Patrick Brockmann, Valérie Masson-Delmotte, Franck Bassinot, Valérie Daux, Dominique Genty, Amaelle Landais, Marlène Lavrieux, Elisabeth Michel, Pablo Ortega, Camille Risi, Didier M. Roche, Françoise Vimeux, and Claire Waelbroeck
Clim. Past, 12, 1693–1719, https://doi.org/10.5194/cp-12-1693-2016, https://doi.org/10.5194/cp-12-1693-2016, 2016
Short summary
Short summary
This paper presents a new database of past climate proxies which aims to facilitate the distribution of data by using a user-friendly interface. Available data from the last 40 years are often fragmented, with lots of different formats, and online libraries are sometimes nonintuitive. We thus built a new dynamic web portal for data browsing, visualizing, and batch downloading of hundreds of datasets presenting a homogeneous format.
Stef Vansteenberge, Sophie Verheyden, Hai Cheng, R. Lawrence Edwards, Eddy Keppens, and Philippe Claeys
Clim. Past, 12, 1445–1458, https://doi.org/10.5194/cp-12-1445-2016, https://doi.org/10.5194/cp-12-1445-2016, 2016
Short summary
Short summary
The use of stalagmites for last interglacial continental climate reconstructions in Europe has been successful in the past; however to expand the geographical coverage, additional data from Belgium is presented. It has been shown that stalagmite growth, morphology and stable isotope content reflect regional and local climate conditions, with Eemian optimum climate occurring between 125.3 and 117.3 ka. The start the Weichselian is expressed by a stop of growth caused by a drying climate.
S. J. Burns, L. C. Kanner, H. Cheng, and R. Lawrence Edwards
Clim. Past, 11, 931–938, https://doi.org/10.5194/cp-11-931-2015, https://doi.org/10.5194/cp-11-931-2015, 2015
M. Van Rampelbergh, S. Verheyden, M. Allan, Y. Quinif, H. Cheng, L. R. Edwards, E. Keppens, and P. Claeys
Clim. Past, 11, 789–802, https://doi.org/10.5194/cp-11-789-2015, https://doi.org/10.5194/cp-11-789-2015, 2015
C. Buizert, K. M. Cuffey, J. P. Severinghaus, D. Baggenstos, T. J. Fudge, E. J. Steig, B. R. Markle, M. Winstrup, R. H. Rhodes, E. J. Brook, T. A. Sowers, G. D. Clow, H. Cheng, R. L. Edwards, M. Sigl, J. R. McConnell, and K. C. Taylor
Clim. Past, 11, 153–173, https://doi.org/10.5194/cp-11-153-2015, https://doi.org/10.5194/cp-11-153-2015, 2015
P. X. Wang, B. Wang, H. Cheng, J. Fasullo, Z. T. Guo, T. Kiefer, and Z. Y. Liu
Clim. Past, 10, 2007–2052, https://doi.org/10.5194/cp-10-2007-2014, https://doi.org/10.5194/cp-10-2007-2014, 2014
Short summary
Short summary
All regional monsoons belong to a cohesive global monsoon circulation system, albeit thateach regional subsystem has its own indigenous features. A comprehensive review of global monsoon variability reveals that regional monsoons can vary coherently across a range of timescales, from interannual up to orbital and tectonic. Study of monsoon variability from both global and regional perspectives is imperative and advantageous for integrated understanding of the modern and paleo-monsoon dynamics.
J. Apaéstegui, F. W. Cruz, A. Sifeddine, M. Vuille, J. C. Espinoza, J. L. Guyot, M. Khodri, N. Strikis, R. V. Santos, H. Cheng, L. Edwards, E. Carvalho, and W. Santini
Clim. Past, 10, 1967–1981, https://doi.org/10.5194/cp-10-1967-2014, https://doi.org/10.5194/cp-10-1967-2014, 2014
Short summary
Short summary
In this paper we explore a speleothem δ18O record from Palestina cave, northwestern Peru, on the eastern side of the Andes cordillera, in the upper Amazon Basin. The δ18O record is interpreted as a proxy for South American Summer Monsoon (SASM) intensity and allows the reconstruction of its variability during the last 1600 years. Replicating regional climate signals from different sites and using different proxies is essential for a comprehensive understanding of past changes in SASM activity.
J.-J. Yin, D.-X. Yuan, H.-C. Li, H. Cheng, T.-Y. Li, R. L. Edwards, Y.-S. Lin, J.-M. Qin, W. Tang, Z.-Y. Zhao, and H.-S. Mii
Clim. Past, 10, 1803–1816, https://doi.org/10.5194/cp-10-1803-2014, https://doi.org/10.5194/cp-10-1803-2014, 2014
C. Spötl and H. Cheng
Clim. Past, 10, 1349–1362, https://doi.org/10.5194/cp-10-1349-2014, https://doi.org/10.5194/cp-10-1349-2014, 2014
Y. Peng, C. Shen, H. Cheng, and Y. Xu
Clim. Past, 10, 1079–1091, https://doi.org/10.5194/cp-10-1079-2014, https://doi.org/10.5194/cp-10-1079-2014, 2014
M. Berkelhammer, A. Sinha, M. Mudelsee, H. Cheng, K. Yoshimura, and J. Biswas
Clim. Past, 10, 733–744, https://doi.org/10.5194/cp-10-733-2014, https://doi.org/10.5194/cp-10-733-2014, 2014
M. Luetscher, M. Borreguero, G. E. Moseley, C. Spötl, and R. L. Edwards
The Cryosphere, 7, 1073–1081, https://doi.org/10.5194/tc-7-1073-2013, https://doi.org/10.5194/tc-7-1073-2013, 2013
M. Casado, P. Ortega, V. Masson-Delmotte, C. Risi, D. Swingedouw, V. Daux, D. Genty, F. Maignan, O. Solomina, B. Vinther, N. Viovy, and P. Yiou
Clim. Past, 9, 871–886, https://doi.org/10.5194/cp-9-871-2013, https://doi.org/10.5194/cp-9-871-2013, 2013
Related subject area
Subject: Continental Surface Processes | Archive: Terrestrial Archives | Timescale: Holocene
Holocene environmental and climate evolution of central west Patagonia as reconstructed from lacustrine sediments of Meseta Chile Chico (46.5° S, Chile)
Moss kill dates and modeled summer temperature track episodic snowline lowering and ice cap expansion in Arctic Canada through the Common Era
Missing sea level rise in southeastern Greenland during and since the Little Ice Age
Reconstructing burnt area during the Holocene: an Iberian case study
Expression of the “4.2 ka event” in the southern Rocky Mountains, USA
Arctic glaciers and ice caps through the Holocene:a circumpolar synthesis of lake-based reconstructions
Stalagmite carbon isotopes suggest deglacial increase in soil respiration in western Europe driven by temperature change
Climate-driven desertification and its implications for the ancient Silk Road trade
Diatom-oxygen isotope record from high-altitude Lake Petit (2200 m a.s.l.) in the Mediterranean Alps: shedding light on a climatic pulse at 4.2 ka
Episodic Neoglacial expansion and rapid 20th century retreat of a small ice cap on Baffin Island, Arctic Canada, and modeled temperature change
Climate trends in northern Ontario and Québec from borehole temperature profiles
Interactions between climate change and human activities during the early to mid-Holocene in the eastern Mediterranean basins
Laurentide Ice Sheet basal temperatures during the last glacial cycle as inferred from borehole data
Glacier response to North Atlantic climate variability during the Holocene
Climatic variability and human impact during the last 2000 years in western Mesoamerica: evidence of late Classic (AD 600–900) and Little Ice Age drought events
Twelve thousand years of dust: the Holocene global dust cycle constrained by natural archives
Numerical studies on the Impact of the Last Glacial Cycle on recent borehole temperature profiles: implications for terrestrial energy balance
Holocene climate change, permafrost and cryogenic carbonate formation: insights from a recently deglaciated, high-elevation cave in the Austrian Alps
Late Glacial–Holocene climatic transition record at the Argentinian Andean piedmont between 33 and 34° S
Holocene changes in African vegetation: tradeoff between climate and water availability
Orbital changes, variation in solar activity and increased anthropogenic activities: controls on the Holocene flood frequency in the Lake Ledro area, Northern Italy
Mass-movement and flood-induced deposits in Lake Ledro, southern Alps, Italy: implications for Holocene palaeohydrology and natural hazards
A Late Glacial to Holocene record of environmental change from Lake Dojran (Macedonia, Greece)
Bunker Cave stalagmites: an archive for central European Holocene climate variability
Temperature variability at Dürres Maar, Germany during the Migration Period and at High Medieval Times, inferred from stable carbon isotopes of Sphagnum cellulose
Carolina Franco, Antonio Maldonado, Christian Ohlendorf, A. Catalina Gebhardt, María Eugenia de Porras, Amalia Nuevo-Delaunay, César Méndez, and Bernd Zolitschka
Clim. Past, 20, 817–839, https://doi.org/10.5194/cp-20-817-2024, https://doi.org/10.5194/cp-20-817-2024, 2024
Short summary
Short summary
We present a continuous record of lake sediments spanning the Holocene from central west Patagonia. By examining various indicators like elemental composition and grain size data, we found that, around ~5500 years ago, the way sediments settled in the lake changed. On a regional scale, our results suggest that rainfall, influenced by changes in the Southern Hemisphere Westerly Winds, played a key role in shaping the environment of the region for the past ~10 000 years.
Gifford H. Miller, Simon L. Pendleton, Alexandra Jahn, Yafang Zhong, John T. Andrews, Scott J. Lehman, Jason P. Briner, Jonathan H. Raberg, Helga Bueltmann, Martha Raynolds, Áslaug Geirsdóttir, and John R. Southon
Clim. Past, 19, 2341–2360, https://doi.org/10.5194/cp-19-2341-2023, https://doi.org/10.5194/cp-19-2341-2023, 2023
Short summary
Short summary
Receding Arctic ice caps reveal moss killed by earlier ice expansions; 186 moss kill dates from 71 ice caps cluster at 250–450, 850–1000 and 1240–1500 CE and continued expanding 1500–1880 CE, as recorded by regions of sparse vegetation cover, when ice caps covered > 11 000 km2 but < 100 km2 at present. The 1880 CE state approached conditions expected during the start of an ice age; climate models suggest this was only reversed by anthropogenic alterations to the planetary energy balance.
Sarah A. Woodroffe, Leanne M. Wake, Kristian K. Kjeldsen, Natasha L. M. Barlow, Antony J. Long, and Kurt H. Kjær
Clim. Past, 19, 1585–1606, https://doi.org/10.5194/cp-19-1585-2023, https://doi.org/10.5194/cp-19-1585-2023, 2023
Short summary
Short summary
Salt marsh in SE Greenland records sea level changes over the past 300 years in sediments and microfossils. The pattern is rising sea level until ~ 1880 CE and sea level fall since. This disagrees with modelled sea level, which overpredicts sea level fall by at least 0.5 m. This is the same even when reducing the overall amount of Greenland ice sheet melt and allowing for more time. Fitting the model to the data leaves ~ 3 mm yr−1 of unexplained sea level rise in SE Greenland since ~ 1880 CE.
Yicheng Shen, Luke Sweeney, Mengmeng Liu, Jose Antonio Lopez Saez, Sebastián Pérez-Díaz, Reyes Luelmo-Lautenschlaeger, Graciela Gil-Romera, Dana Hoefer, Gonzalo Jiménez-Moreno, Heike Schneider, I. Colin Prentice, and Sandy P. Harrison
Clim. Past, 18, 1189–1201, https://doi.org/10.5194/cp-18-1189-2022, https://doi.org/10.5194/cp-18-1189-2022, 2022
Short summary
Short summary
We present a method to reconstruct burnt area using a relationship between pollen and charcoal abundances and the calibration of charcoal abundance using modern observations of burnt area. We use this method to reconstruct changes in burnt area over the past 12 000 years from sites in Iberia. We show that regional changes in burnt area reflect known changes in climate, with a high burnt area during warming intervals and low burnt area when the climate was cooler and/or wetter than today.
David T. Liefert and Bryan N. Shuman
Clim. Past, 18, 1109–1124, https://doi.org/10.5194/cp-18-1109-2022, https://doi.org/10.5194/cp-18-1109-2022, 2022
Short summary
Short summary
A large drought potentially occurred roughly 4200 years ago, but its impacts and significance are unclear. We find new evidence in carbonate oxygen isotopes from a mountain lake in southeastern Wyoming, southern Rocky Mountains, of an abrupt reduction in effective moisture (precipitation–evaporation) or snowpack from approximately 4200–4000 years ago. The drought's prominence among a growing number of sites in the North American interior suggests it was a regionally substantial climate event.
Laura J. Larocca and Yarrow Axford
Clim. Past, 18, 579–606, https://doi.org/10.5194/cp-18-579-2022, https://doi.org/10.5194/cp-18-579-2022, 2022
Short summary
Short summary
This paper synthesizes 66 records of glacier variations over the Holocene from lake archives across seven Arctic regions. We find that summers only moderately warmer than today drove major environmental change across the Arctic in the early Holocene, including the widespread loss of glaciers. In comparison, future projections of Arctic temperature change far exceed estimated early Holocene values in most locations, portending the eventual loss of most of the Arctic's small glaciers.
Franziska A. Lechleitner, Christopher C. Day, Oliver Kost, Micah Wilhelm, Negar Haghipour, Gideon M. Henderson, and Heather M. Stoll
Clim. Past, 17, 1903–1918, https://doi.org/10.5194/cp-17-1903-2021, https://doi.org/10.5194/cp-17-1903-2021, 2021
Short summary
Short summary
Soil respiration is a critical but poorly constrained component of the global carbon cycle. We analyse the effect of changing soil respiration rates on the stable carbon isotope ratio of speleothems from northern Spain covering the last deglaciation. Using geochemical analysis and forward modelling we quantify the processes affecting speleothem stable carbon isotope ratios and extract a signature of increasing soil respiration synchronous with deglacial warming.
Guanghui Dong, Leibin Wang, David Dian Zhang, Fengwen Liu, Yifu Cui, Guoqiang Li, Zhilin Shi, and Fahu Chen
Clim. Past, 17, 1395–1407, https://doi.org/10.5194/cp-17-1395-2021, https://doi.org/10.5194/cp-17-1395-2021, 2021
Short summary
Short summary
A compilation of the results of absolute dating and high-resolution paleoclimatic records from the Xishawo site in the Dunhuang area and historical archives reveals that two desertification events occurred at ~ 800–600 BCE and ~ 1450 CE. The later desertification event was consistent with the immediate fall in tribute trade that occurred in ~ 1450 CE, which indicates that climate change played a potentially important role in explaining the decline of the Ancient Silk Road trade.
Rosine Cartier, Florence Sylvestre, Christine Paillès, Corinne Sonzogni, Martine Couapel, Anne Alexandre, Jean-Charles Mazur, Elodie Brisset, Cécile Miramont, and Frédéric Guiter
Clim. Past, 15, 253–263, https://doi.org/10.5194/cp-15-253-2019, https://doi.org/10.5194/cp-15-253-2019, 2019
Short summary
Short summary
A major environmental change, 4200 years ago, was recorded in the lacustrine sediments of Lake Petit (Mediterranean Alps). The regime shift was described by a modification in erosion processes in the watershed and aquatic species in the lake. This study, based on the analysis of the lake water balance by using oxygen isotopes in diatoms, revealed that these environmental responses were due to a rapid change in precipitation regime, lasting ca. 500 years.
Simon L. Pendleton, Gifford H. Miller, Robert A. Anderson, Sarah E. Crump, Yafang Zhong, Alexandra Jahn, and Áslaug Geirsdottir
Clim. Past, 13, 1527–1537, https://doi.org/10.5194/cp-13-1527-2017, https://doi.org/10.5194/cp-13-1527-2017, 2017
Short summary
Short summary
Recent warming in the high latitudes has prompted the accelerated retreat of ice caps and glaciers, especially in the Canadian Arctic. Here we use the radiocarbon age of preserved plants being exposed by shrinking ice caps that once entombed them. These ages help us to constrain the timing and magnitude of climate change on southern Baffin Island over the past ~ 2000 years. Our results show episodic cooling up until ~ 1900 CE, followed by accelerated warming through present.
Carolyne Pickler, Hugo Beltrami, and Jean-Claude Mareschal
Clim. Past, 12, 2215–2227, https://doi.org/10.5194/cp-12-2215-2016, https://doi.org/10.5194/cp-12-2215-2016, 2016
Short summary
Short summary
The ground surface temperature histories of the past 500 years were reconstructed at 10 sites in northern Ontario and Quebec. The regions experienced a warming of ~1–2 K for the past 150 years, agreeing with borehole reconstructions for southern Ontario and Quebec and proxy data. Permafrost maps locate the sites in a region of discontinuous permafrost but our reconstructions suggest that the potential for permafrost was minimal to absent over the past 500 years.
Jean-Francois Berger, Laurent Lespez, Catherine Kuzucuoğlu, Arthur Glais, Fuad Hourani, Adrien Barra, and Jean Guilaine
Clim. Past, 12, 1847–1877, https://doi.org/10.5194/cp-12-1847-2016, https://doi.org/10.5194/cp-12-1847-2016, 2016
Short summary
Short summary
This paper focuses on early Holocene rapid climate changes in the Mediterranean zone, which are under-represented in continental archives, and on their impact on prehistoric societies from the eastern to central Mediterranean (central Anatolia, Cyprus, NE and NW Greece). Our study demonstrates the reality of hydrogeomorphological responses to early Holocene RCCs in valleys and alluvial fans and lake–marsh systems. We finally question their socio-economic and geographical adaptation capacities.
C. Pickler, H. Beltrami, and J.-C. Mareschal
Clim. Past, 12, 115–127, https://doi.org/10.5194/cp-12-115-2016, https://doi.org/10.5194/cp-12-115-2016, 2016
N. L. Balascio, W. J. D'Andrea, and R. S. Bradley
Clim. Past, 11, 1587–1598, https://doi.org/10.5194/cp-11-1587-2015, https://doi.org/10.5194/cp-11-1587-2015, 2015
Short summary
Short summary
Sediment cores were collected from a lake that captures runoff from two glaciers in Greenland. Our analysis of the sediments shows that these glaciers were active over the last 9,000 years and advanced and retreated in response to regional climate changes. The data also provide a long-term perspective on the rate of 20th century glacier retreat and indicate that recent anthropogenic-driven warming has already impacted the regional cryosphere in a manner outside the range of natural variability.
A. Rodríguez-Ramírez, M. Caballero, P. Roy, B. Ortega, G. Vázquez-Castro, and S. Lozano-García
Clim. Past, 11, 1239–1248, https://doi.org/10.5194/cp-11-1239-2015, https://doi.org/10.5194/cp-11-1239-2015, 2015
Short summary
Short summary
We present results from western Mexico, where very few palaeoclimatic research sites exist. The record has good chronological resolution (ca. 20 years) and clear climatic trends during the last 2ka. The most important signals are: dry conditions during the late Classic (AD 500 to 1000), especially from AD 600 to 800, and low lake levels during the LIA, in two phases that follow Spörer and Maunder solar minima. Drier conditions are related with a lower intensity of the North American monsoon.
S. Albani, N. M. Mahowald, G. Winckler, R. F. Anderson, L. I. Bradtmiller, B. Delmonte, R. François, M. Goman, N. G. Heavens, P. P. Hesse, S. A. Hovan, S. G. Kang, K. E. Kohfeld, H. Lu, V. Maggi, J. A. Mason, P. A. Mayewski, D. McGee, X. Miao, B. L. Otto-Bliesner, A. T. Perry, A. Pourmand, H. M. Roberts, N. Rosenbloom, T. Stevens, and J. Sun
Clim. Past, 11, 869–903, https://doi.org/10.5194/cp-11-869-2015, https://doi.org/10.5194/cp-11-869-2015, 2015
Short summary
Short summary
We propose an innovative framework to organize paleodust records, formalized in a publicly accessible database, and discuss the emerging properties of the global dust cycle during the Holocene by integrating our analysis with simulations performed with the Community Earth System Model. We show how the size distribution of dust is intrinsically related to the dust mass accumulation rates and that only considering a consistent size range allows for a consistent analysis of the global dust cycle.
H. Beltrami, G. S. Matharoo, L. Tarasov, V. Rath, and J. E. Smerdon
Clim. Past, 10, 1693–1706, https://doi.org/10.5194/cp-10-1693-2014, https://doi.org/10.5194/cp-10-1693-2014, 2014
C. Spötl and H. Cheng
Clim. Past, 10, 1349–1362, https://doi.org/10.5194/cp-10-1349-2014, https://doi.org/10.5194/cp-10-1349-2014, 2014
A. E. Mehl and M. A. Zárate
Clim. Past, 10, 863–875, https://doi.org/10.5194/cp-10-863-2014, https://doi.org/10.5194/cp-10-863-2014, 2014
C. Hély, A.-M. Lézine, and APD contributors
Clim. Past, 10, 681–686, https://doi.org/10.5194/cp-10-681-2014, https://doi.org/10.5194/cp-10-681-2014, 2014
B. Vannière, M. Magny, S. Joannin, A. Simonneau, S. B. Wirth, Y. Hamann, E. Chapron, A. Gilli, M. Desmet, and F. S. Anselmetti
Clim. Past, 9, 1193–1209, https://doi.org/10.5194/cp-9-1193-2013, https://doi.org/10.5194/cp-9-1193-2013, 2013
A. Simonneau, E. Chapron, B. Vannière, S. B. Wirth, A. Gilli, C. Di Giovanni, F. S. Anselmetti, M. Desmet, and M. Magny
Clim. Past, 9, 825–840, https://doi.org/10.5194/cp-9-825-2013, https://doi.org/10.5194/cp-9-825-2013, 2013
A. Francke, B. Wagner, M. J. Leng, and J. Rethemeyer
Clim. Past, 9, 481–498, https://doi.org/10.5194/cp-9-481-2013, https://doi.org/10.5194/cp-9-481-2013, 2013
J. Fohlmeister, A. Schröder-Ritzrau, D. Scholz, C. Spötl, D. F. C. Riechelmann, M. Mudelsee, A. Wackerbarth, A. Gerdes, S. Riechelmann, A. Immenhauser, D. K. Richter, and A. Mangini
Clim. Past, 8, 1751–1764, https://doi.org/10.5194/cp-8-1751-2012, https://doi.org/10.5194/cp-8-1751-2012, 2012
R. Moschen, N. Kühl, S. Peters, H. Vos, and A. Lücke
Clim. Past, 7, 1011–1026, https://doi.org/10.5194/cp-7-1011-2011, https://doi.org/10.5194/cp-7-1011-2011, 2011
Cited articles
Bar-Matthews, M. and Ayalon, A.: Mid-Holocene climate variations revealed
by high-resolution speleothem records from Soreq Cave, Israel and their
correlation with cultural changes, Holocene, 21, 163–171, 2011.
Bar-Matthews, M., Ayalon, A., and Kaufman, A.: Late Quaternary Paleoclimate
in the Eastern Mediterranean Region from Stable Isotope Analysis of
Speleothems at Soreq Cave, Israel, Quat. Res., 47, 155–168, 1997.
Bar-Matthews, M., Ayalon, A., Gilmour, M., Matthews, A., and Hawkesworth, C.
J.: Sea–land oxygen isotopic relationships from planktonic foraminifera and
speleothems in the Eastern Mediterranean region and their implication for
paleorainfall during interglacial intervals, Geochim. Cosmochim. Ac., 67,
3181–3199, 2003.
Berkelhammer, M., Sinha, A., Stott, L., Cheng, H., Pausata, F. S. R., and
Yoshimura, K.: An abrupt shift in the Indian Monsoon 4000 years ago, in:
Climates, Landscapes, and Civilizations, edited by: Giosan, L., Fuller, D. Q., Nicoll,
K., Flad, R. K., and Clift, P. D., American Geophysical Union,
Washington, DC, 75–87, 2013.
Bond, G., Kromer, B., Beer, J., Muscheler, R., Evans, M. N., Showers, W.,
Hoffmann, S., Lotti-Bond, R., Hajdas, I., and Bonani, G.: Persistent Solar
Influence on North Atlantic Climate During the Holocene, Science, 294,
2130–2136, 2001.
Booth, R. K., Jackson, S. T., Forman, S. L., Kutzbach, J. E., E.A. Bettis,
I., Kreig, J., and Wright, D. K.: A severe centennial-scale drought in
midcontinental North America 4200 years ago and apparent global linkages,
Holocene, 15, 321–328, 2005.
Carrión, J. S.: Patterns and processes of Late Quaternary environmental
change in a montane region of southwestern Europe, Quat. Sci. Rev., 21,
2047–2066, 2002.
Cheng, H., Edwards, L. R., Shen, C. C., Polyak, V. J., Asmerom, Y.,
Woodhead, J., Hellstrom, J., Wang, Y., Kong, X., Spötl, C., Wang, X.,
and Alexander Jr, E. C.: Improvements in 230 Th dating, 230 Th and
234 U half-life values, and U-Th isotopic measurements by
multi-collector inductively coupled plasma mass spectrometry, Earth Planet.
Sci. Lett., 371–372, 82–91, 2013.
Coombes, P. and Barber, K.: Environmental determinism in Holocene research:
causality or coincidence?, Area, 37, 303–311, 2005.
Cottereau, E., Arnold, M., Moreau, C., Baque, D., Bavay, D., Caffy, I.,
Comby, C., Dumoulin, J.-P., Hain, S., Perron, M., Salomon, J., and Setti,
V.: Artemis, the New 14C AMS14 in Saclay, France, Radiocarbon, 49, 291–299,
2007.
Cullen, H. M., deMenocal, P. B., Hemming, S., Hemming, G., Brown, F. H.,
Guilderson, T., and Sirocko, F.: Climate change and the collapse of the
Akkadian empire: Evidence from the deep sea, Geology, 28, 379–382, 2000.
Cuthbert, M. O., Baker, A., Jex, C. N., Graham, P. W., Treble, P. C.,
Andersen, M. S., and Acworth, R. I.: Drip water isotopes in semi-arid karst:
Implications for speleothem paleoclimatology, Earth Planet. Sci. Lett., 395,
194–204, 2014.
deMenocal, P., Ortiz, J., Guilderson, T., Adkins, J., Sarnthein, M., Baker,
L., and Yarusinsky, M.: Abrupt onset and termination of the African Humid
Period: rapid climate responses to gradual insolation forcing, Quat. Sci.
Rev., 19, 347–361, 2000.
Dixit, Y., Hodell, D. A., and Petrie, C. A.: Abrupt weakening of the summer
monsoon in northwest India ∼ 4100 yr ago, Geology, 42,
339–342, 2014.
Drysdale, R., Zanchetta, G., Hellstrom, J., Maas, R., Fallick, A., Pickett,
M., Cartwright, I., and Piccini, L.: Late Holocene drought responsible for
the collapse of Old World civilizations is recorded in an Italian cave
flowstone, Geology, 34, 101–104, 2006.
Drysdalea, R. N., Zanchetta, G., Hellstrom, J. C., Fallick, A. E., Zhao,
J.-x., Isola, I., and Bruschi, G.: Palaeoclimatic implications of the growth
history and stable isotope (δ 18 O and δ 13 C)
geochemistry of a Middle to Late Pleistocene stalagmite from central-western
Italy, Earth Planet. Sci. Lett., 227, 215–229, 2004.
Edwards, R. L., Chen, J. H., and Wasserburg, G. J.:
238 U-234 U-230 Th-232 Th systematics and the precise
measurements of time over the past 500 000 years., Earth Planet. Sci. Lett.,
81, 175–192, 1987.
Fairchild, I. J. and Baker, A.: Speleothem science – from process to past
environments, John Wiley & Sons, Ltd, Chichester, UK, 2012.
Fairchild, I. J., Borsato, A., Tooth, A. F., Frisia, S., Hawkesworth, C. J.,
Huang, Y. M., McDermott, F., and Spiro, B.: Controls on trace element
(Sr–Mg) compositions of carbonate cave waters: implications for speleothem
climatic records, Chem. Geol., 166, 255–269, 2000.
Faith, J. T.: Late Pleistocene and Holocene mammal extinctions on
continental Africa, Earth-Sci. Rev., 128, 105–121, 2014.
Finné, M., Holmgren, K., Sundqvist, H. S., Weiberg, E., and Lindblom,
M.: Climate in the eastern Mediterranean, and adjacent regions, during the
past 6000 years – A review, J. Archaeol. Sci., 38, 3153–3173, 2011.
Genty, D., Baker, A., Massault, M., Proctor, C., Gilmour, M., and
Pons-Branchu, E.: Dead carbon in stalagmites: Carbonate bedrock
paleodissolution vs. ageing of soil organic matter. Implications for
13 C variations in speleothems, Geochim. Cosmochim. Ac., 65, 3443–3457,
2001a.
Genty, D., Baker, A., and Vokal, B.: Intra- and inter-annual growth rate of
modern stalagmites, Chem. Geol., 176, 191–212, 2001b.
Genty, D., Labuhn, I., Hoffmann, G., Danis, P. A., Mestre, O., Bourges, F.,
Wainer, K., Massault, M., Régnier, E., Orengo, P., Falourd, S., and
Minster, B.: Rainfall and cave water isotopic relationships in two
South-France sites, Geochim. Cosmochim. Ac., 131, 323–343, 2014.
Hendy, C. H.: The isotopic geochemistry of speleothems-I, The calculation of
the effects of different modes of formation on the isotopic composition of
speleothems and their applicability as palaeoclimatic indicators, Geochim. Cosmochim. Ac., 35, 801–824, 1971.
Hoerling, M. and Kumar, A.: The perfect ocean for drought, Science, 299,
691–694, 2003.
IAEA: Isotopic composition of precipitation in the Mediterranean Basin in
relation to air circulation patterns and climate: final report of a
coordinated research project, 2000–2004, International Atomic Energy Agency,
Vienna, Austria, 2005.
Jackson, M. G., Oskarsson, N., Tronnes, R. G., McManus, J. F., Oppo, D. W.,
Gronvold, K., Hart, S. R., and Sachs, J. P.: Holocene loess deposition in
Iceland: evidence for millennial-scale atmosphre-ocean coupling in the North
Atlantic, Geology, 33, 509–512, 2005.
Jaffey, A. H., Flynn, K. F., Glendenin, L. E., Bentley, W. C., and Essling,
A. M.: Precision measurement of half-lives and specific activities of
235 U and 238 U, Phys. Rev. C, 4, 1889–1906, 1971.
Jalut, G., Esteban Amat, A., Bonnet, L., Gauquelin, T., and Fontugne, M.:
Holocene climatic changes in the Western Mediterranean, from south-east
France to south-east Spain, Palaeogeogr. Palaeocl. Palaeoecol., 160,
255–290, 2000.
Johnson, K. R., Hu, C. Y., Belshaw, N. S., and Henderson, G. M.: Seasonal
trace-element and stable-isotope variations in a Chinese speleothem: The
potential for high-resolution paleomonsoon reconstruction, Earth Planet.
Sci. Lett., 244, 394–407, 2006.
Kaufman, A., Wasserburg, G. J., Porcelli, D., Bar-Matthews, M., Ayalon, A.,
and Halicz, L.: U-Th isotope systematics from the Soreq cave, Israel and
climatic correlations, Earth Planet. Sci. Lett., 156, 141–155, 1998.
Kherbouche, F., Hachi, S., Abdessadok, S., Sehil, N., Merzoug, S., Sari, L.,
Benchernine, R., Chelli, R., Fontugne, M., Barbaza, M., and Roubet, C.:
Preliminary results from excavations at Gueldaman Cave GLD1 (Akbou,
Algeria), Quat. Int., 320, 109–124, 2014.
Kröpelin, S., Verschuren, D., Lézine, A.-M., Eggermont, H., Cocquyt,
C., Francus, P., Cazet, J.-P., Fagot, M., Rumes, B., Russell, J. M., Darius,
F., Conley, D. J., Schuster, M., Suchodoletz, H. v., and Engstrom, D. R.:
Climate-Driven Ecosystem Succession in the Sahara: The Past 6000 Years,
Science, 320, 765–768, 2006.
Lachniet, M. S.: Climatic and environmental controls on speleothem
oxygen-isotope values, Quat. Sci. Rev., 28, 412–432, 2009.
Magny, M., Vannière, B., Calo, C., Millet, L., Leroux, A., Peyron, O.,
Zanchetta, G., La Mantia, T., and Tinner, W.: Holocene hydrological changes
in south-western Mediterranean as recorded by lake-level fluctuations at
Lago Preola, a coastal lake in southern Sicily, Italy, Quat. Sci. Rev., 30,
2459–2475, 2011.
Magny, M., Combourieu-Nebout, N., de Beaulieu, J. L., Bout-Roumazeilles, V., Colombaroli, D., Desprat, S., Francke, A.,
Joannin, S., Ortu, E., Peyron, O., Revel, M., Sadori, L., Siani, G., Sicre, M. A., Samartin, S., Simonneau, A., Tinner, W., Vannière, B.,
Wagner, B., Zanchetta, G., Anselmetti, F., Brugiapaglia, E., Chapron, E., Debret, M., Desmet, M., Didier, J., Essallami, L., Galop, D., Gilli, A.,
Haas, J. N., Kallel, N., Millet, L., Stock, A., Turon, J. L., and Wirth, S.: North-south palaeohydrological contrasts in the central Mediterranean
during the Holocene: tentative synthesis and working hypotheses, Clim. Past, 9, 2043–2071, https://doi.org/10.5194/cp-9-2043-2013, 2013.
Martrat, B., Grimalt, J. O., Lopez-Martizez, C., Cacho, I., Sierro, F. J.,
Flores, J. A., Zahn, R., Canals, M., Curtis, J. H., and Hodell, D. A.:
Abrupt temperature changes in the Western Mediterranean over the past
250 000 years, Science, 306, 1762–1765, 2004.
Mayewski, P. A., Rohling, E. E., Stager, J. C., Karlén, W., Maasch, K.
A., Meeker, L. D., Meyerson, E. A., Gasse, F., Kreveld, S. V., Holmgren, K.,
Lee-Thorp, J., Rosqvist, G., Rack, F., Staubwasser, M., Schneider, R. R.,
and Steig, E. J.: Holocene climate variability, Quat. Res., 62, 243–255,
2004.
McDermott, F.: Palaeo-climate reconstruction from stable isotope variations
in speleothems: a review, Quat. Sci. Rev., 23, 901–918, 2004.
McGee, D., deMenocal, P. B., Winckler, G., W.Stuut, J. B., and Bradtmiller,
L. I.: The magnitude, timing and abruptness of changes in North African dust
deposition over the last 20 000 yr, Earth Planet. Sci. Lett., 371–372,
163–176, 2013.
Mickler, P. J., Banner, J. L., Stern, L., Asmeron, Y., Edwards, R. L., and
Ito, E.: Stable isotope variations in modern tropical speleothems:
Evaluating equilibrium vs. kinetic isotope effects, Geochim. Cosmochim. Ac., 68, 4381–4393, 2004.
Mickler, P. J., Stern, L. A., and Banner, J. L.: Large kinetic isotope
effects in modern speleothems, Geol. Soc. Am. Bull., 118, 65–81, 2006.
Morrellon, M., zvalero-Garces, B., Vegas-Vilarrubia, T., Gonzalez-Samperiz,
P., Romero, O., Delgado-Huertas, A., Mata, P., Moreno, A., Rico, M., and
Corella, J. P.: Lateglacial and Holocene paleohydrology in the western
Mediterranean region: the Lake Estanya record (NE Spain), Quat. Sci. Rev.,
28, 2582–2599, 2009.
Regattieri, E., Zanchetta, G., Drysdale, R. N., Isola, I., Hellstrom, J. C.,
and Dallai, L.: Lateglacial to Holocene trace element record (Ba, Mg, Sr)
from Corchia Cave (Apuan Alps, central Italy): paleoenvironmental
implications, J. Quat. Sci., 29, 381–392, 2014.
Reimer, P. J., Bard, E., Bayliss, A., Beck, J. W., Blackwell, P. J., Bronk
Ramsey, C., Buck, C. E., Cheng, H., Edwards, R. L., Friedrich, M., Grootes,
P. M., Guilderson, T. P., Haflidason, H., Hajdas, I., Hatté, C., Heaton,
T. J., Hoffmann, D. L., Hogg, A. G., Hughen, K. A., Kaiser, K. F., Kromer,
B., Manning, S. W., Niu, M., Reimer, R. W., Richards, D. A., Scott, E. M.,
Southon, J. R., Staff, R. A., Turney, C. S. M., and van der Plicht, J.:
IntCal13 and Marine13 radiocarbon age calibration curves 0–52 000 years cal
BP, Radiocarbon, 55, 1869–1887, 2013.
Riehla, S., Pustovoytov, K. E., Weippert, H., Klett, S., and Hole, F.:
Drought stress variability in ancient Near Eastern agricultural systems
evidenced by δ 13 C in barley grain, P. Natl. Acad. Sci. USA, 111, 12348–12353,
2014.
Roberts, N., Brayshaw, D., Kuzucuoglu, C., Perez, R., and Sadori, L.: The
mid-Holocene climatic transition in the Mediterranean: Causes and
consequences, Holocene, 21, 3–13, 2011.
Roland, T. P.: Was there a “4.2 kyr event” in Great Britain and Ireland?
Evidence from the peatland record, PhD, University of Exeter, Exeter, UK,
2012.
Sadori, L. and Narcisi, B.: The postglacial record of environmental history
from Lago di Pergusa, Sicily, Holocene, 11, 655–672, 2001.
Sadori, L. and Giardini, M.: Charcoal analysis, a method to study vegetation
and climate of the Holocene: The case of Lago di Pergusa (Sicily, Italy),
Geobios, 40, 173–180, 2007.
Sadori, L., Jahns, S., and Peyron, O.: Mid-Holocene vegetation history of
the central Mediterranean, Holocene, 21, 117–129, 2011.
Scholz, D. and Hoffmann, D. L.: StalAge – An algorithm designed for
construction of speleothem age models, Quat. Geochronol., 6, 369–382, 2011.
Seager, R., Ting, M., Held, I., Kushnir, Y., Lu, J., Vecchi, G., Huang, H.
P., Harnik, N., Leetmaa, A., Lau, N. C., Li, C., Velez, J., and Naik, N.:
Model projections of an imminent transition to a more arid climate in
southwestern North America, Science, 316, 1181–1184, 2007.
Staubwasser, M. and Weiss, H.: Holocene climate and cultural evolution in
late prehistoric–early historic West Asia, Quat. Res., 66, 372–378, 2006.
Staubwasser, M., Sirocko, F., Grootes, P., and Segl, M.: Climate change at
the 4.2 ka BP termination of the Indus valley civilization and Holocene
south Asian monsoon variability, Geophys. Res. Lett., 30, 1–4, 2003.
Stoll, H. M., Moreno, A., Mendez-Vicente, A., Gonzalez-Lemos, S.,
Jimenez-Sanchez, M., Dominguez-Guesta, M. J., Edwards, R. L., Cheng, H., and
Wang, X.: Paleoclimate and growth rates of speleothems in the northwestern
Iberian peninsula over the last two glacial cycles, Quat. Res., 80, 284–290,
2013.
Tindall, J. C. and Valdes, P. J.: Modeling the 8.2 ka event using a coupled
atmosphere-ocean GCM, Global Planet. Change, 79, 312–321, 2011.
Touchan, R., Anchukaitis, K. J., Meko, D. M., Attalah, S., Baisan, C., and
Aloui, A.: Long term context for recent drought in northwestern Africa,
Geophys. Res. Lett., 35, L13705, https://doi.org/10.1029/2008GL034264, 2008.
Touchan, R., Anchukaitis, K. J., Meko, D. M., Sabir, M., Attalah, S., and
Aloui, A.: Spatiotemporal drought variability in northwestern Africa over
the last nine centuries, Clim. Dyn., 37, 237–252, 2011.
Vaks, A., Woodhead, J., Bar-Matthews, M., Ayalon, A., Cliff, R. A.,
Zilberman, T., Matthews, A., and Frumkin, A.: Pliocene–Pleistocene climate
of the northern margin of Saharan–Arabian Desert recorded in speleothems
from the Negev Desert, Israel, Earth Planet. Sci. Lett., 368, 88–100, 2013.
Wanner, H., Beer, J., Bütikofer, J., Crowley, T. J., Cubasch, U.,
Flückiger, J., Goosse, H., Grosjean, M., Joos, F., Kaplan, J. O.,
Küttel, M., Müller, S. A., Prentice, C. I., Solomina, O., Stocker,
T. F., Tarasov, P., Wagner, M., and Widmann, M.: Mid- to Late Holocene
climate change: an overview, Quat. Sci. Rev., 27, 1791–1828, 2008.
Weiss, H. and Bradley, R. S.: What Drives Societal Collapse?, Science, 291,
609–610, 2000.
Weiss, H., Courty, M.-A., Wetterstrom, W., Guichard, F., Senior, L., Meadow,
R., and Curnow, A.: The genesis and collapse of third millennium North
Mesopotamian civilization, Science, 261, 995–1004, 1993.
Wiener, M. H.: The interaction of climate change and agency in the collapse
of civilizations ca. 2300–2000 BC, Radiocarbon, 56, S1–S16,
https://doi.org/10.2458/azu_rc.56.18325, 2014.
Zanchetta, G., Drysdale, R. N., Hellstrom, J. C., Fallick, A. E., Isola, I.,
Gagan, M. K., and Paresch, M. T.: Enhanced rainfall in the Western
Mediterranean during deposition of sapropel S1: stalagmite evidence from
Corchia cave (Central Italy), Quat. Sci. Rev., 26, 279–286, 2007.
Zanchetta, G., Giraudi, C., Sulpizio, R., Magny, M., Drysdale, R. N., and
Sadori, L.: Constraining the onset of the Holocene “Neoglacial” over the
central Italy using tephra layers, Quat. Res., 78, 236–247, 2012a.
Zanchetta, G., van Welden, A., Baneschi, I., Drysdale, R. N., Sadori, L.,
Roberts, N., Giardini, M., Beck, C., and Pascucci, V.: Multiproxy record for
the last 4500 years from Lake Shkodra (Albania/Montenegro), J. Quat. Sci.,
27, 780–789, 2012b.
Zanchetta, G., Bar-Matthews, M., Drysdale, R. N., Lionello, P., Ayalon, A.,
Hellstrom, J. C., Isola, I., and Regattieri, E.: Coeval dry events in the
central and eastern Mediterranean basin at 5.2 and 5.6 ka recorded in
Corchia (Italy) and Soreq caves (Israel) speleothems, Global Planet. Change,
122, 130–139, 2014.
Special issue