Articles | Volume 15, issue 8
https://doi.org/10.5194/tc-15-4135-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-15-4135-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
30 Aug 2021
Research article |
| 30 Aug 2021
| 30 Aug 2021
Significant mass loss in the accumulation area of the Adamello glacier indicated by the chronology of a 46 m ice core
Faculty of Sciences, Free University of Bozen-Bolzano, 37100 Bolzano,
Italy
Department of Botany, University of Innsbruck, 6020 Innsbruck,
Austria
Margit Schwikowski
Laboratory of Environmental Chemistry, Paul Scherrer Institute,
5232 Villigen PSI, Switzerland
Oeschger Centre for Climate Change Research, University of Bern,
3012 Bern, Switzerland
Department of Chemistry and Biochemistry, University of Bern, 3012
Bern, Switzerland
Valter Maggi
Dipartimento di Scienze della Terra, Università Milano Bicocca,
20126 Milan, Italy
National Institute of Nuclear Physics, Milano-Bicocca section, 20126
Milan, Italy
Klaus Oeggl
Department of Botany, University of Innsbruck, 6020 Innsbruck,
Austria
Theo Manuel Jenk
Laboratory of Environmental Chemistry, Paul Scherrer Institute,
5232 Villigen PSI, Switzerland
Oeschger Centre for Climate Change Research, University of Bern,
3012 Bern, Switzerland
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Paolo Gabrielli, Theo Manuel Jenk, Michele Bertó, Giuliano Dreossi, Daniela Festi, Werner Kofler, Mai Winstrup, Klaus Oeggl, Margit Schwikowski, Barbara Stenni, and Carlo Barbante
Clim. Past Discuss., https://doi.org/10.5194/cp-2022-20, https://doi.org/10.5194/cp-2022-20, 2022
Revised manuscript not accepted
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Short summary
We present a methodology that reduces the chronological uncertainty of an Alpine ice core record from the glacier Alto dell’Ortles, Italy. This chronology will allow the constraint of the Holocene climatic and environmental histories emerging from this archive of Central Europe. This method will allow to obtain accurate chronologies also from other ice cores from-low latitude/high-altitude glaciers that typically suffer from larger dating uncertainties compared with well dated polar records.
Giovanni Baccolo, Barbara Delmonte, Elena Di Stefano, Giannantonio Cibin, Ilaria Crotti, Massimo Frezzotti, Dariush Hampai, Yoshinori Iizuka, Augusto Marcelli, and Valter Maggi
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Shugui Hou, Wangbin Zhang, Ling Fang, Theo M. Jenk, Shuangye Wu, Hongxi Pang, and Margit Schwikowski
The Cryosphere, 15, 2109–2114, https://doi.org/10.5194/tc-15-2109-2021, https://doi.org/10.5194/tc-15-2109-2021, 2021
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We present ages for two new ice cores reaching bedrock, from the Zangser Kangri (ZK) glacier in the northwestern Tibetan Plateau and the Shulenanshan (SLNS) glacier in the western Qilian Mountains. We estimated bottom ages of 8.90±0.57/0.56 ka and 7.46±1.46/1.79 ka for the ZK and SLNS ice core respectively, constraining the time range accessible by Tibetan ice cores to the Holocene.
Ling Fang, Theo M. Jenk, Thomas Singer, Shugui Hou, and Margit Schwikowski
The Cryosphere, 15, 1537–1550, https://doi.org/10.5194/tc-15-1537-2021, https://doi.org/10.5194/tc-15-1537-2021, 2021
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Filipe G. L. Lindau, Jefferson C. Simões, Barbara Delmonte, Patrick Ginot, Giovanni Baccolo, Chiara I. Paleari, Elena Di Stefano, Elena Korotkikh, Douglas S. Introne, Valter Maggi, Eduardo Garzanti, and Sergio Andò
The Cryosphere, 15, 1383–1397, https://doi.org/10.5194/tc-15-1383-2021, https://doi.org/10.5194/tc-15-1383-2021, 2021
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Information about the past climate variability in tropical South America is stored in the snow layers of the tropical Andean glaciers. Here we show evidence that the presence of very large aeolian mineral dust particles at Nevado Illimani (Bolivia) is strictly controlled by the occurrence of summer storms in the Bolivian Altiplano. Therefore, based on the snow dust content and its composition of stable water isotopes, we propose a new proxy for information on previous summer storms.
Sebastian Hellmann, Johanna Kerch, Ilka Weikusat, Andreas Bauder, Melchior Grab, Guillaume Jouvet, Margit Schwikowski, and Hansruedi Maurer
The Cryosphere, 15, 677–694, https://doi.org/10.5194/tc-15-677-2021, https://doi.org/10.5194/tc-15-677-2021, 2021
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We analyse the orientation of ice crystals in an Alpine glacier and compare this orientation with the ice flow direction. We found that the crystals orient in the direction of the largest stress which is in the flow direction in the upper parts of the glacier and in the vertical direction for deeper zones of the glacier. The grains cluster around this maximum stress direction, in particular four-point maxima, most likely as a result of recrystallisation under relatively warm conditions.
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The Cryosphere, 14, 4233–4251, https://doi.org/10.5194/tc-14-4233-2020, https://doi.org/10.5194/tc-14-4233-2020, 2020
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We show that plutonium is an effective tracer to identify ice originating from the early 1960s at the surface of a mountain glacier after a long time within the ice flow, giving unique information on the long-term former ice motion. Combined with ice flow modelling, the dating can be extended to the entire glacier, and we show that an airplane which crash-landed on the Gauligletscher in 1946 will likely soon be released from the ice close to the place where pieces have emerged in recent years.
Dimitri Osmont, Sandra Brugger, Anina Gilgen, Helga Weber, Michael Sigl, Robin L. Modini, Christoph Schwörer, Willy Tinner, Stefan Wunderle, and Margit Schwikowski
The Cryosphere, 14, 3731–3745, https://doi.org/10.5194/tc-14-3731-2020, https://doi.org/10.5194/tc-14-3731-2020, 2020
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In this interdisciplinary case study, we were able to link biomass burning emissions from the June 2017 wildfires in Portugal to their deposition in the snowpack at Jungfraujoch, Swiss Alps. We analysed black carbon and charcoal in the snowpack, calculated backward trajectories, and monitored the fire evolution by remote sensing. Such case studies help to understand the representativity of biomass burning records in ice cores and how biomass burning tracers are archived in the snowpack.
Filipe Gaudie Ley Lindau, Jefferson Cardia Simões, Rafael da Rocha Ribeiro, Patrick Ginot, Barbara Delmonte, Giovanni Baccolo, Stanislav Kutuzov, Valter Maggi, and Edson Ramirez
Clim. Past Discuss., https://doi.org/10.5194/cp-2020-129, https://doi.org/10.5194/cp-2020-129, 2020
Manuscript not accepted for further review
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Glaciers are important freshwater sources in the Tropical Andes. Their retreat has been accelerating since the 1980s. This exposes fresh glacial sediments and facilitates the transport of coarse dust particles to the Nevado Illimani summit. Both the glacial area of Illimani and its ice core record of coarse dust particles respond to warmer conditions across the southern tropical Andes, and drier conditions over the Amazon basin.
Wolfgang Knierzinger, Ruth Drescher-Schneider, Klaus-Holger Knorr, Simon Drollinger, Andreas Limbeck, Lukas Brunnbauer, Felix Horak, Daniela Festi, and Michael Wagreich
E&G Quaternary Sci. J., 69, 121–137, https://doi.org/10.5194/egqsj-69-121-2020, https://doi.org/10.5194/egqsj-69-121-2020, 2020
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We present multi-proxy analyses of a 14C-dated peat core covering the past ⁓5000 years from the ombrotrophic Pürgschachen Moor. Pronounced increases in cultural indicators suggest significant human activity in the Bronze Age and in the period of the late La Tène culture. We found strong, climate-controlled interrelations between the pollen record, the humification degree and the ash content. Human activity is reflected in the pollen record and by heavy metals.
Cited articles
Avak, S. E., Schwikowski, M., and Eichler A.: Impact and implications of meltwater percolation on trace element records observed in a high-Alpine ice core, J. Glaciol., 64, 877–886, https://doi.org/10.1017/jog.2018.74, 2018.
Avak, S. E., Trachsel, J. C., Edebeli, J., Brütsch, S., Bartels-Rausch, T., Schneebeli, M., Schwikowski M., and Eichler A.: Melt-induced fractionation of major ions and trace elements in an Alpine snowpack, Journal of Geophysical Research: Earth Surface, 124, 1647–1657, https://doi.org/10.1029/2019JF005026, 2019.
Bocchiola, D. and Diolaiuti, G.: Evidence of climate change within the
Adamello glacier of Italy, Theor. Appl. Climatol., 100, 351–369, https://doi.org/10.1007/s00704-009-0186-x, 2010.
Carturan, L., Baroni, C., Becker, M., Bellin, A., Cainelli, O., Carton, A., Casarotto, C., Dalla Fontana, G., Godio, A., Martinelli, T., Salvatore, M. C., and Seppi, R.: Decay of a long-term monitored glacier: Careser Glacier (Ortles-Cevedale, European Alps), The Cryosphere, 7, 1819–1838, https://doi.org/10.5194/tc-7-1819-2013, 2013.
Dansgaard, W. and Johnsen, S. J.: A flow model and a time scale for the ice
core from Camp Century, Greenland, J. Glaciol., 8, 215–223, 1969.
Di Stefano, E., Clemenza, M., Baccolo, G., Delmonte, B., and Maggi, V.: Cs
contamination in the Adamello glacier: Improving the analytical method, J.
Environ. Radioact., 208–209, 106039, https://doi.org/10.1016/j.jenvrad.2019.106039, 2019.
Eichler, A., Schwikowski, M., Gaggeler, H. W., Furrer, V., Synal, H. A.,
Beer, J., Saurer, M., and Funk, M.: Glaciochemical dating of an ice core
from upper Grenzgletscher (4200 m a.s.l.), J. Glaciol., 46, 507–515,
2000.
Eichler, A., Schwikowski, M., and Gäggeler, H. W.: Meltwater-induced
relocation of chemical species in Alpine firn, Tellus B, 53, 192–203, https://doi.org/10.3402/tellusb.v53i2.16575, 2001.
Festi, D., Kofler, W., Bucher, E., Carturan, L., Mair, V., Gabrielli, P.,
and Oeggl, K.: A novel pollen-based method to detect seasonality in ice
cores: A case study from the Ortles glacier, South Tyrol, Italy, J.
Glaciol., 61, 815–824, https://doi.org/10.3189/2015JoG14J236, 2015.
Festi, D., Carturan, L., Kofler, W., dalla Fontana, G., de Blasi, F., Cazorzi, F., Bucher, E., Mair, V., Gabrielli, P., and Oeggl, K.: Linking pollen deposition and snow accumulation on the Alto dell'Ortles glacier (South Tyrol, Italy) for sub-seasonal dating of a firn temperate core, The Cryosphere, 11, 937–948, https://doi.org/10.5194/tc-11-937-2017, 2017.
Festi, D., Kofler, W., and Oeggl, K.: Comments on Brugger and others (2018)
“A quantitative comparison of microfossil extraction methods from ice
cores.”, J. Glaciol., 65, 344–346, https://doi.org/10.1017/jog.2019.10, 2019.
Festi, D., Schwikowski, M., Maggi, V., Oeggl, K., and Jenk, T.: Dataset of pollen and spores concentration, refractory black carbon (rBC) concentration as well as Pb-210 activity concentration measured in the ADA16 ice core extracted from the Adamello glacier, Italy, Research Gate [data set], https://doi.org/10.13140/RG.2.2.22017.17763, 2021.
Gabrielli, P., Carturan, L., Gabrieli, J., Dinale, R., Krainer, K.,
Hausmann, H., Davis, M., Zagorodnov, V. S., Seppi, R., Barbante, C., Dalla
Fontana, G., and Thompson, L. G.: Atmospheric warming threatens the untapped
glacial archive of Ortles mountain, South Tyrol, J. Glaciol., 56,
843–853, https://doi.org/10.3189/002214310794457263, 2010.
Gabrielli, P., Barbante, C., Bertagna, G., Bertó, M., Binder, D., Carton, A., Carturan, L., Cazorzi, F., Cozzi, G., Dalla Fontana, G., Davis, M., De Blasi, F., Dinale, R., Dragà, G., Dreossi, G., Festi, D., Frezzotti, M., Gabrieli, J., Galos, S. P., Ginot, P., Heidenwolf, P., Jenk, T. M., Kehrwald, N., Kenny, D., Magand, O., Mair, V., Mikhalenko, V., Lin, P. N., Oeggl, K., Piffer, G., Rinaldi, M., Schotterer, U., Schwikowski, M., Seppi, R., Spolaor, A., Stenni, B., Tonidandel, D., Uglietti, C., Zagorodnov, V., Zanoner, T., and Zennaro, P.: Age of the Mt. Ortles ice cores, the Tyrolean Iceman and glaciation of the highest summit of South Tyrol since the Northern Hemisphere Climatic Optimum, The Cryosphere, 10, 2779–2797, https://doi.org/10.5194/tc-10-2779-2016, 2016.
Gäggeler, H., Tobler, L., Schwikowski, M., and Jenk, T.: Application of
the radionuclide 210Pb in glaciology – an overview, J. Glaciol., 66,
447–456, https://doi.org/10.1017/jog.2020.19, 2020.
Gäggeler, H. W., von Gunten, H., Rossler, E., Oeshger, H., and
Schotterer, U.: 210Pb- dating of cold alpine firn/ice cores from Colle
Gnifetti, Switzerland, J. Glaciol., 29, 165–177, https://doi.org/10.3189/S0022143000005220, 1983.
Grossi, G., Caronna, P., and Ranzi, R.: Hydrologic vulnerability to climate
change of the Mandrone glacier (Adamello-Presanella group, Italian Alps),
Adv. Water Resour., 55, 190–203, 2010.
Huss, M., Dhulst, L., and Bauder, A.: New long-term mass-balance series for
the Swiss Alps, J. Glaciol., 61, 551–562,
https://doi.org/10.3189/2015JoG15J015, 2015.
Jenk, T. M., Szidat, S., Bolius, D., Sigl, M., Gäggeler, H. W., Wacker, L., Ruff, M., Barbante, C., Boutron, C. F., and Schwikowski, M.:
A novel radiocarbon dating technique applied to an ice core from the Alps
indicating late Pleistocene ages, J. Geophys. Res., 114, D14305,
https://doi.org/10.1029/2009JD011860, 2009.
Kang, S., Wang, F., Morgenstern, U., Zhang, Y., Grigholm, B., Kaspari, S., Schwikowski, M., Ren, J., Yao, T., Qin, D., and Mayewski, P. A.: Dramatic loss of glacier accumulation area on the Tibetan Plateau revealed by ice core tritium and mercury records, The Cryosphere, 9, 1213–1222, https://doi.org/10.5194/tc-9-1213-2015, 2015.
Kaspari, S. D., Pittenger, D., Jenk, T. M., Morgenstern, U., Schwikowski,
M., Buenning, N., and Stott, L.: Twentieth century black carbon and dust
deposition on South Cascade Glacier, Washington State, USA, as reconstructed
from a 158-m-long ice core, J. Geophys. Res-Atmos., 125, e2019JD031126,
https://doi.org/10.1029/2019JD031126, 2020.
Lavanchy, V. M. H., Gäggeler, H. W., Nyeki, S., and Baltensperger, U.:
Elemental carbon (EC) and black carbon (BC) measurements with a thermal
method and an aethalometer at the high-alpine research station Jungfraujoch,
Atmos. Environ., 33, 2759–2769, 1999.
Licciulli, C., Bohleber, P., Lier, J., Gagliardini, O., Hoelzle, M., and
Eisen, O.: A full Stokes ice-flow model to assist the interpretation of
millennial-scale ice cores at the high-Alpine drilling site Colle Gnifetti,
Swiss/Italian Alps, J. Glaciol., 66, 35–48, https://doi.org/10.1017/jog.2019.82, 2020.
Maragno, D., Diolaiuti, G., D'agata, C., Mihalcea, C., Bocchiola, D.,
Bianchi, J. E., Riccardi, A., and Smiraglia, C.: New evidence from Italy
(Adamello Group, Lombardy) for analysing the ongoing decline of Alpine
glaciers, Geogr. Fis. Din. Quat., 32, 31–39, 2009.
Nakazawa, F.: Application of pollen analysis to dating of ice cores from
lower-latitude glaciers, J. Geophys. Res., 109, F04001,
https://doi.org/10.1029/2004JF000125, 2004.
Naftz, D. L., Klusman, R. W., Michel, R. L., Schuster, P. F., Ready, M. M.,
Taylor, H. E., Yanosky, T. M., and McConnaughey, E. A.: Little Ice Age
evidence from a south-central North American ice core, U.S.A., Arct.
Alp. Res., 28, 35–41, https://doi.org/10.2307/1552083. 1996.
Neff, P. D., Steig, E. J., Clark, D. H., McConnell, J. R., Pettit, E. C.,
and Menounos, B.: Ice-core net snow accumulation and seasonal snow
chemistry at a temperate-glacier site: Mount Waddington, southwest British
Columbia, Canada, J. Glaciol., 58, 1165–1175, https://doi.org/10.3189/2012JoG12J078, 2012.
Osmont, D., Wendl, I. A., Schmidely, L., Sigl, M., Vega, C. P., Isaksson, E., and Schwikowski, M.: An 800-year high-resolution black carbon ice core record from Lomonosovfonna, Svalbard, Atmos. Chem. Phys., 18, 12777–12795, https://doi.org/10.5194/acp-18-12777-2018, 2018.
Pavlova, P. A., Jenk, T. M., Schmid, P., Bogdal, C., Steinlin, C., and
Schwikowski, M.: Polychlorinated biphenyls in a temperate Alpine glacier:
effect of percolating meltwater on their distribution in glacier ice,
Environ. Sci. Technol., 49, 14085–14091, https://doi.org/10.1021/acs.est.5b03303, 2015.
Pelto, M. S.: Forecasting temperate alpine glacier survival from accumulation zone observations, The Cryosphere, 4, 67–75, https://doi.org/10.5194/tc-4-67-2010, 2010.
Petzold, A., Ogren, J. A., Fiebig, M., Laj, P., Li, S.-M., Baltensperger, U., Holzer-Popp, T., Kinne, S., Pappalardo, G., Sugimoto, N., Wehrli, C., Wiedensohler, A., and Zhang, X.-Y.: Recommendations for reporting “black carbon” measurements, Atmos. Chem. Phys., 13, 8365–8379, https://doi.org/10.5194/acp-13-8365-2013, 2013.
Picotti, S., Francese, R., Giorgi, M., Pettenati, F., and Carcione, J. M.:
Estimation of glacier thicknesses and basal properties using the
horizontal-to-vertical component spectral ratio (HVSR) technique from
passive seismic data, J. Glaciol., 63, 229–248, https://doi.org/10.1017/jog.2016.135, 2017.
Ranzi, R., Grossi, G., Gitti, A., and Taschner, S.: Energy and mass balance
of the Mandrone glacier (Adamello, Central Alps), Geogr. Fis. Din. Quat.,
33, 45–60, 2010.
Schwarz, J. P., Gao, R. S., Fahey, D. W., Thomson, D. S., Watts, L. A.,
Wilson, J. C., Reeves, J. M., Darbeheshti, M., Baumgardner, D. G., Kok, G.
L., Chung, S. H., Schulz, M., Hendricks, J., Lauer, A., Karcher, B., Slowik,
J. G., Rosenlof, K. H., Thompson, T. L., Langford, A. O., Loewenstein, M.,
and Aikin, K. C.: Single-particle measurements of midlatitude black carbon
and light-scattering aerosols from the boundary layer to the lower
stratosphere, J. Geophys. Res., 111, D16207,
https://doi.org/10.1029/2006JD007076, 2006.
Sigl, M., Abram, N. J., Gabrieli, J., Jenk, T. M., Osmont, D., and Schwikowski, M.: 19th century glacier retreat in the Alps preceded the emergence of industrial black carbon deposition on high-alpine glaciers, The Cryosphere, 12, 3311–3331, https://doi.org/10.5194/tc-12-3311-2018, 2018.
Smiraglia, C. and Diolaiuti G.: The New Italian Glacier Inventory, Bergamo
Publ., 400 pp., 2015.
Stephens, M., Turner, N., and Sandberg, J.: Particle identification by
laser-induced incandescence in a solid-state laser cavity, Appl. Optics, 42,
3726–3736, https://doi.org/10.1364/AO.42.003726, 2003
Takeuchi, N., Sera, S., Fujita, K., Aizen, V. B., and Kubota, J.: Annual
layer counting using pollen grains of the Grigoriev ice core from the Tien
Shan Mountains, central Asia, Arct. Antarct. Alp. Res., 51,
299–312, https://doi.org/10.1080/15230430.2019.1638202, 2019.
Uglietti, C., Zapf, A., Jenk, T. M., Sigl, M., Szidat, S., Salazar, G., and Schwikowski, M.: Radiocarbon dating of glacier ice: overview, optimisation, validation and potential, The Cryosphere, 10, 3091–3105, https://doi.org/10.5194/tc-10-3091-2016, 2016.
Vincent, C., Fischer, A., Mayer, C., Bauder, A., Galos, S. P., Funk, M.,
Thibert, E., Six, D., Braun, L., and Huss, M.: Common climatic signal from
glaciers in the European Alps over the last 50 years, Geophys. Res.
Lett., 44, 1376–1383, https://doi.org/10.1002/2016GL072094, 2017.
von Gunten, H. R., Rössler, E., and Gäggeler, H.,: Dating of ice
cores from Vernagtferner (Austria) with fission products and lead-210,
Zeitschrift für Gletscherkunde und Glazialgeologie, 18, 37–45,
hdl:10013/epic.38455.d001, 1982.
Wendl, I. A., Menking, J. A., Färber, R., Gysel, M., Kaspari, S. D., Laborde, M. J. G., and Schwikowski, M.: Optimized method for black carbon analysis in ice and snow using the Single Particle Soot Photometer, Atmos. Meas. Tech., 7, 2667–2681, https://doi.org/10.5194/amt-7-2667-2014, 2014.
Žebre, M., Colucci, R. R., Giorgi, F., Glasser, N. F., Racoviteanu, A.
E., and Del Gobbo, C.: 200 years of equilibrium-line altitude variability
across the European Alps (1901-2100), Clim. Dynam., 56,
1183–1201, https://doi.org/10.1007/s00382-020-05525-7, 2021.
Zemp, M., Frey, H., Gärtner-Roer, I., Nussbaumer, S., Hoelzle, M., Paul,
F., et al.: Historically unprecedented global glacier decline in the early
21st century, J. Glaciol., 61, 745–762, https://doi.org/10.3189/2015JoG15J017,
2015.
Zhang, Q., Kang, S., Gabrielli, P., Loewen, M., and Schwikowski, M.: Vanishing
high mountain glacial archives: challenges and perspectives, Environ. Sci.
Technol., 49, 9499–9500, https://doi.org/10.1021/acs.est.5b03066, 2015.
Short summary
In our study we dated a 46 m deep ice core retrieved from the Adamello glacier (Central Italian Alps). We obtained a timescale combining the results of radionuclides 210Pb and 137Cs with annual layer counting derived from pollen and refractory black carbon concentrations. Our results indicate that the surface of the glacier is older than the drilling date of 2016 by about 20 years, therefore revealing that the glacier is at high risk of collapsing under current climate warming conditions.
In our study we dated a 46 m deep ice core retrieved from the Adamello glacier (Central Italian...
