statistique trafic

Global Environmental Change

(Varin, 2009, 2017)

We live in a rapidly changing world. Climate change, population growth, ecosystem disturbance, and transmissible diseases present global challenges that bridge traditional divides between the physical, ecological-biological-physiological and social sciences (Varin, 2009, 2014, 2017).

Global change refers to planetary-scale changes in the Earth system. The system consists of the land, oceans, atmosphere, Polar Regions, life, the planet’s natural cycles and deep Earth processes. These constituent parts influence one another. The Earth system now includes human society, so global change also refers to large-scale changes in society (Varin, 2009, 2014; IGBPES (2010); IIASA (2010)).

More completely, the term “global change” encompasses: Ecosystems & bio-geochemical cycles (atmospheric circulation, ocean circulation, the carbon cycle, the nitrogen cycle, the sulphur cycle, the water cycle and other cycles, sea ice loss, sea-level rise, food webs, biological diversity), climate, population and its impact (resource use, land use and land cover, energy development, transport, communication, urbanization, the economy, globalization, pollution, health, over fishing, and more) (Varin, 2009, 2014, 2017; IGBPES (2010), IIASA (2010)).

So we must evaluate: i) How human and physical environments interacted with environment to create global changes?; ii) What are impacts of global change on ecosystem and organisms ? My research projects were integrated in this scientific context. I invite you to see them.

Auteur : Varin Sébastien / Creation date: 2009-10-07/Update/Actualisation: 2020-04-01

Protection intellectuelle & droit auteur/Mention légale : N°2019-12-0014/N°2017-11-0140/N°2016-03-0066/N°2009

References :

IGBPES “International Geosphere-Biosphere Programme the Earth as a System”. 2010. International Geosphere-Biosphere Programme. 2010-03-25.

IIASA “International Institute for Applied Systems Analysis”. 2010. The Achilles Heel of the Earth System. 2010-03-25.

Varin S. 2009. Plasticité fonctionnelle du trèfle blanc en réponse à la disponibilité en soufre. Ecole Doctorale Normande de Chimie-Biologie/ Institut de Biologie Fondamentale et Appliquée/ Thèse de l’université de Caen : 338 p.

Varin S. 2009. Functional plasticity of white clover in response to sulphur availability. Ecole Doctorale Normande de Chimie-Biologie/ Institut de Biologie Fondamentale et Appliquée/PhD thesis in university of Caen : 338 p.

Varin S. 2014. In Press.

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Référence électronique

Sébastien Varin, « Global Environmental Change », My WebSite Dr Sébastien Varin [En ligne], mis en ligne le 27 avril 2016, consulté le (date de consultation). URL : https://sites.google.com/site/drsebastienvarin/overview/f3-global-environmental-change

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Auteur : Varin Sébastien / Creation date: 2009-10-07/Update/Actualisation: 2020-04-01

Protection intellectuelle & droit auteur/Mention légale : N°2019-12-0014/N°2017-11-0140/N°2016-03-0066/N°2009