scholarly journals Contribution of orbital forcing and Deccan volcanism to global climatic and biotic changes across the Cretaceous-Paleogene boundary at Zumaia, Spain

Geology ◽  
2021 ◽  
Author(s):  
Vicente Gilabert ◽  
Sietske J. Batenburg ◽  
Ignacio Arenillas ◽  
José A. Arz
Keyword(s):  
Climate Change ◽  
Environmental Change ◽  
Orbital Forcing ◽  
Deccan Volcanism ◽  
Climate And Environmental Change ◽  
Temporal Relationships ◽  
Age Model ◽  
Chicxulub Impact ◽  
Age Constraints

Untangling the timing of the environmental effects of Deccan volcanism with respect to the Chicxulub impact is instrumental to fully assessing the contributions of both to climate change over the Cretaceous-Paleogene boundary (KPB) interval. Despite recent improvements in radiometric age calibrations, the accuracy of age constraints and correlations is insufficient to resolve the exact mechanisms leading to environmental and climate change in the 1 m.y. across the KPB. We present new high-resolution planktic foraminiferal, geochemical, and geophysical data from the Zumaia section (Spain), calibrated to an updated orbitally tuned age model. We provide a revised chronology for the major carbon isotope excursions (CIEs) and planktic foraminiferal events and test temporal relationships with different models of the eruptive phases of the Deccan Traps. Our data show that the major CIEs near the KPB, i.e., the late Maastrichtian warming event (66.25–66.10 Ma) and the Dan-C2 event (65.8–65.7 Ma), are synchronous with the last and the first 405 k.y. eccentricity maximum of the Maastrichtian and the Danian, respectively, and that the minor Lower C29n event (65.48–65.41 Ma) is well constrained to a short eccentricity maximum. Conversely, we obtained evidence of abrupt environmental change likely related to Deccan volcanism at ca. 65.9 Ma, based on a bloom of opportunistic triserial guembelitriids (Chiloguembelitria). The orbital, isotopic, and paleobiological temporal relationships with Deccan volcanism established here provide new insights into the role of Deccan volcanism in climate and environmental change in the 1 m.y. across the KPB.

scholarly journals Understanding interactions between plasticity, adaptation and range shifts in response to marine environmental change

2019 ◽  
Vol 374 (1768) ◽  
pp. 20180186 ◽  
Author(s):  
Jennifer M. Donelson ◽  
Jennifer M. Sunday ◽  
Will F. Figueira ◽  
Juan Diego Gaitán-Espitia ◽  
Alistair J. Hobday ◽  
...  
Keyword(s):  
Climate Change ◽  
Environmental Change ◽  
Conceptual Model ◽  
Single Species ◽  
Marine Species ◽  
Range Shifts ◽  
Supporting Evidence ◽  
Marine Environmental ◽  
Rapid Environmental Change

Climate change is leading to shifts in species geographical distributions, but populations are also probably adapting to environmental change at different rates across their range. Owing to a lack of natural and empirical data on the influence of phenotypic adaptation on range shifts of marine species, we provide a general conceptual model for understanding population responses to climate change that incorporates plasticity and adaptation to environmental change in marine ecosystems. We use this conceptual model to help inform where within the geographical range each mechanism will probably operate most strongly and explore the supporting evidence in species. We then expand the discussion from a single-species perspective to community-level responses and use the conceptual model to visualize and guide research into the important yet poorly understood processes of plasticity and adaptation.This article is part of the theme issue ‘The role of plasticity in phenotypic adaptation to rapid environmental change’.

The eruptive tempo of Deccan volcanism in relation to the Cretaceous-Paleogene boundary

Science ◽  
2019 ◽  
Vol 363 (6429) ◽  
pp. 866-870 ◽  
Author(s):  
Courtney J. Sprain ◽  
Paul R. Renne ◽  
Loÿc Vanderkluysen ◽  
Kanchan Pande ◽  
Stephen Self ◽  
...  
Keyword(s):  
Climate Change ◽  
Environmental Change ◽  
High Precision ◽  
Late Cretaceous ◽  
Deccan Traps ◽  
Plumbing System ◽  
Deccan Volcanism ◽  
Eruptive Volume ◽  
Magmatic Plumbing System

Late Cretaceous records of environmental change suggest that Deccan Traps (DT) volcanism contributed to the Cretaceous-Paleogene boundary (KPB) ecosystem crisis. However, testing this hypothesis requires identification of the KPB in the DT. We constrain the location of the KPB with high-precision argon-40/argon-39 data to be coincident with changes in the magmatic plumbing system. We also found that the DT did not erupt in three discrete large pulses and that >90% of DT volume erupted in <1 million years, with ~75% emplaced post-KPB. Late Cretaceous records of climate change coincide temporally with the eruption of the smallest DT phases, suggesting that either the release of climate-modifying gases is not directly related to eruptive volume or DT volcanism was not the source of Late Cretaceous climate change.

Education on Global Climate and Environmental Change in University of China

2013 ◽  
Vol 838-841 ◽  
pp. 3195-3198
Author(s):  
Jian Cheng Kang ◽  
Xiaochen Su
Keyword(s):  
Climate Change ◽  
Environmental Change ◽  
Environmental Changes ◽  
Global Climate ◽  
Earth System ◽  
Ecological Civilization ◽  
Environment Change ◽  
Climate And Environmental Change ◽  
The Earth ◽  
Normal University

Global Climate and Environmental Change is an international hot field. To enhance native awareness on climate change is one mission of "State Policy and Action on Climate Change 2009 in China". As an implement, a course on Global Climate and Environmental Change has been opened in Shanghai Normal University since 2005. The course includes three fields. In the first field, it is introduced on which problems and harms have been caused from Global Climate and Environmental Changes according to UNEP Year Books 2003~2013. In the second field, to introduce the Earth System and Climate-Environment Change. In the third part, the hot climate-environmental issues are analyzed and discussed. By joining this course, the students have understanding earth system science and global change. It helped students to set up the view of ecological civilization of the harmonious development between human and nature, inspire students responsibility to protect the earth. During past 8 year, there were 4 to 5 classes opening for different levels in Shanghai Normal University for each year, more than 1000 students joined the study in the course.

Possible impact of climate and environmental change on ticks and tick-borne disease in England.

2021 ◽  
pp. 518-527
Author(s):  
Jolyon Medlock ◽  
Kayleigh Hansford
Keyword(s):  
Public Health ◽  
Climate Change ◽  
Health Risk ◽  
Environmental Change ◽  
Indirect Effects ◽  
Environmental Changes ◽  
The Public ◽  
Climate And Environmental Change ◽  
Tick Borne Disease ◽  
Survival Density

Abstract The survival, density and distribution of ticks are determined by three key elements: microclimate, habitat and host, all of which can be impacted by climate change. The public health risk from ticks is further influenced by human behaviour and the way in which we access and manage the environment where ticks or key tick hosts are found. This expert opinion considers how these factors influence tick-borne disease (TBD) transmission in a changing climate, first by discussing direct effects of climate change on ticks and TBD, and second the indirect effects and environmental changes that make direct comparisons of climate and ticks so challenging.

Influence of climate and environmental change in Nigeria: a review on vulnerability and adaptation to climate change

2018 ◽  
Vol 33 (4) ◽  
pp. 441-447
Author(s):  
Emmanuel Alepu Odey ◽  
Bodjui Olivier Abo ◽  
Zifu Li ◽  
Xiaoqin Zhou ◽  
Abdulmoseen Segun Giwa
Keyword(s):  
Climate Change ◽  
Environmental Change ◽  
Environmental Sustainability ◽  
Environmental Changes ◽  
Renewable Energy Sources ◽  
Global Environmental Change ◽  
Information Structures ◽  
Adaptation To Climate Change ◽  
Environmental Threats ◽  
Climate And Environmental Change

Abstract This paper reviews the current issues that involve environmental changes in Nigeria and environmental threats within the country. The fundamental aim of scientific knowledge in environmental studies is to reconcile climate change and environmental sustainability with developmental goals. Therefore, information on impact adaptation to climate change and vulnerability research is required to develop specific, action-oriented, interdisciplinary, successful, sociopolitical and democratic reform for the entire population of a country. This condition requires large inclusion of environmental researchers, institutions, re-inventing of research structures and ideas to dominate the global environmental change research and the critical analysis of present decision making, power, structure and related information structures. This review presents the effect of climate change in Nigeria and encourages adaptation research with challenging innovation, such as the use of energy-efficient renewable energy sources to significantly reduce greenhouse gas emissions. This paper also highlighted the need for researchers to become detailed, action oriented and multiscalar and to attend communications structure problems in enhancing the environmental activity.

scholarly journals Ensayo sobre la realidad socioecológica: No alcanza para todos

2018 ◽  
Vol 26 ◽  
pp. 46-61
Author(s):  
Joachim Borner
Keyword(s):  
Climate Change ◽  
Environmental Change ◽  
Global Environmental Change ◽  
Personal Reflection ◽  
Planetary Boundaries ◽  
Global Environmental ◽  
Senior Researcher

The essay starts of with a personal reflection of a senior researcher who has been investigating on global environmental change since the early beginnings of his career. It then moves to an analysis of the present challenges of humanity and the predominant narratives, which seem to steer our actions and hinder us from mitigating climate change and for staying within the planetary boundaries. Also it points out the role of hyperobjects, such as climate change, which are too big to grasp and too abstract to feel or imagine. In the discussion it opens up the imperative of creating new narratives to tackle the above issues, and reflects on the role of storytelling / future narrations to reach this goal of utmost importance for our planet's - for humanity's sake.

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