Special Issue "Global Climate Change and Geological Processes"

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Geochemistry".

Deadline for manuscript submissions: closed (28 February 2019)

Special Issue Editor

Guest Editor
Prof. Manuel Rigo

University of Padova
Website | E-Mail
Interests: stratigraphy; geochemistry; palaeontology; climate; mass extinctions; oceanic anoxic events

Special Issue Information

Dear Colleagues,

Global climate change, driven by release of greenhouse gases to the atmosphere from human activities, is dramatically changing the planetary environment and risks contributing to the “sixth mass extinction”. Greenhouse molecules (particularly CO2 and CH4) play a crucial role in controlling Earth’s climate, and changes are already observable. Though these changes are predictable via numerical models, the complexity of the Earth system means that the long-term consequences of rising temperatures and acidifying oceans remain highly uncertain, hampering efforts to make well-informed decisions. These uncertainties motivate the search for additional information about how the planet responds to major climatic perturbation.

Earth’s climate has significantly and repeatedly changed throughout the geological past, and although the recent rate of global warming appears to exceed that during previous episodes of climate change, the geological record holds some of the only direct information about the planetary response to perturbation, and about how global biogeochemical cycles mediate the impacts of climate change on the biosphere. Geological data can serve to illuminate patterns and processes that can provide wider context for present-day observational data and help to constrain models predicting the future evolution of Earth’s climate.

The main aim of this Special Issue is to provide more information by using multidisciplinary approach on distinctive time intervals affected by global climate and environmental changes along with severe biotic turnovers.

Prof. Manuel Rigo
Guest Editor

Manuscript Submission Information

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Keywords

  • climate changes
  • environmental changes
  • geological processes
  • extinctions
  • ocean acidification

Published Papers (1 paper)

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Research

Open AccessArticle Recession and Ice Surface Elevation Changes of Baranowski Glacier and Its Impact on Proglacial Relief (King George Island, West Antarctica)
Geosciences 2018, 8(10), 355; https://doi.org/10.3390/geosciences8100355
Received: 27 July 2018 / Revised: 14 September 2018 / Accepted: 18 September 2018 / Published: 20 September 2018
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Abstract
Glacial forefields areas are dynamic landscapes, and due to the glacier frontal position changes, they are sensitive to climatic fluctuations. The results of the analysis of aerial photos, satellite imagery, archival maps, and terrestrial laser scanning surveys are presented. These investigations reveal that [...] Read more.
Glacial forefields areas are dynamic landscapes, and due to the glacier frontal position changes, they are sensitive to climatic fluctuations. The results of the analysis of aerial photos, satellite imagery, archival maps, and terrestrial laser scanning surveys are presented. These investigations reveal that the ice surface decreased during the period 1989–2001, when almost the entire current forefield was already uncovered. Moreover, it is shown that, since 1969, there has been a relationship between the changes in air temperature and the changes of the annual front position rate of Baranowski Glacier. Specifically, the results demonstrate that during the cooling observed for the Antarctic Peninsula Regions since 2000, there is a deceleration of the recession rate and ice surface elevation changes of Baranowski Glacier. It is also shown that the fluctuation of the areal extent of the glacier as well as ice surface elevation changes are closely associated with proglacial relief. Moreover, it is shown that the difference in the retreat of the northern and southern tongue of the glacier can be explained by the presence of relatively warm water in the shallow bay, which can enhance the melting process of the northern part. In addition, existence of long flutes and crevasse fill ridges on the analyzed forefield of Baranowski Glacier suggest that the former episodes of its surge, which could happen at least in the northern part of the forefield and middle part of the southern forefield of the glacier. Full article
(This article belongs to the Special Issue Global Climate Change and Geological Processes)
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