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CLIMAHAL SIGNED

Climate dimension of natural halogens in the Earth system: Past, present, future

Total Cost €

EC-Contrib. €

Partnership

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CLIMAHAL project word cloud

Explore the words cloud of the CLIMAHAL project. It provides you a very rough idea of what is the project "CLIMAHAL" about.

leverage composition absence answering photochemical heavy ocean emissions models oxidizing biological climates multidisciplinary model quality earth physical industrial ice profound interactions multidirectional radiative vslh questions feedbacks global natural interactively metal mercury observations motivated holistic lived toxic apart halogen contribution coupled atmospheric naturally deposition climate quantify destroying capacity land predict impacts amplify peel acute cities breakthrough accelerates coastal unrecognized reduce mediated aerosol air altering emitted human laboratory balance halogens influence oxidation chemistry rf plan aoc forcing mechanisms atmosphere biosphere greenhouse gases possess

Project "CLIMAHAL" data sheet

The following table provides information about the project.

Coordinator	AGENCIA ESTATAL CONSEJO SUPERIOR DEINVESTIGACIONES CIENTIFICAS Organization address address: CALLE SERRANO 117 city: MADRID postcode: 28006 website: http://www.csic.es contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	Spain [ES]
Total cost	1˙979˙112 €
EC max contribution	1˙979˙112 € (100%)
Programme	1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
Code Call	ERC-2016-COG
Funding Scheme	ERC-COG
Starting year	2017
Duration (year-month-day)	from 2017-09-01 to 2022-08-31

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	AGENCIA ESTATAL CONSEJO SUPERIOR DEINVESTIGACIONES CIENTIFICAS AGENCIA ESTATAL CONSEJO SUPERIOR DEINVESTIGACIONES CIENTIFICAS Organization address address: CALLE SERRANO 117 city: MADRID postcode: 28006 website: http://www.csic.es contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	ES (MADRID)	coordinator	1˙979˙112.00

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Project objective

Naturally-emitted very short-lived halogens (VSLH) have a profound impact on the chemistry and composition of the atmosphere, destroying greenhouse gases and altering aerosol production, which together can change the Earth´s radiative balance. Therefore, natural halogens possess leverage to influence climate, although their contribution to climate change is not well established and most climate models have yet to consider their effects. Also, there is increasing evidence that natural halogens i) impact on the air quality of coastal cities, ii) accelerates the atmospheric deposition of mercury (a toxic heavy metal) and iii) that their natural ocean and ice emissions are controlled by biological and photochemical mechanisms that may respond to climate changes. Motivated by the above, this project aims to quantify the so far unrecognized natural halogen-climate feedbacks and the impact of these feedbacks on global atmospheric oxidizing capacity (AOC) and radiative forcing (RF) across pre-industrial, present and future climates. Answering these questions is essential to predict if these climate-mediated feedbacks can reduce or amplify future climate change. To this end we will develop a multidisciplinary research approach using laboratory and field observations and models interactively that will allow us to peel apart the detailed physical processes behind the contribution of natural halogens to global climate change. Furthermore, the work plan also involves examining past-future climate impacts of natural halogens within a holistic Earth System model, where we will develop the multidirectional halogen interactions in the land-ocean-ice-biosphere-atmosphere coupled system. This will provide a breakthrough in our understanding of the importance of these natural processes for the composition and oxidation capacity of the Earth´s atmosphere and climate, both in the presence and absence of human influence.

Publications

List of publications.
year	authors and title	journal	last update
2018	Alfonso Saiz-Lopez, Sebastian P. Sitkiewicz, Daniel Roca-SanjuÃ¡n, Josep M. Oliva-Enrich, Juan Z. DÃ¡valos, Rafael Notario, Martin Jiskra, Yang Xu, Feiyue Wang, Colin P. Thackray, Elsie M. Sunderland, Daniel J. Jacob, Oleg Travnikov, Carlos A. Cuevas, A. Ulises AcuÃ±a, Daniel Rivero, John M. C. Plane, Douglas E. Kinnison, Jeroen E. Sonke Photoreduction of gaseous oxidized mercury changes global atmospheric mercury speciation, transport and deposition published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-07075-3	Nature Communications 9/1	2019-06-06
2018	Carlos A. Cuevas, NiccolÃ² Maffezzoli, Juan Pablo Corella, Andrea Spolaor, Paul Vallelonga, Helle A. KjÃ¦r, Marius Simonsen, Mai Winstrup, Bo Vinther, Christopher Horvat, Rafael P. Fernandez, Douglas Kinnison, Jean-FranÃ§ois Lamarque, Carlo Barbante, Alfonso Saiz-Lopez Rapid increase in atmospheric iodine levels in the North Atlantic since the mid-20th century published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-03756-1	Nature Communications 9/1	2019-06-06

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