ICTA-UAB researcher Victoria Reyes-García receives an ERC Consolidator Grant

ICREA researcher at ICTA-UAB Victoria Reyes- García has been graced with a Consolidator Grant of the European Research Council (ERC) for the development of a project aimed at bringing insights from local knowledge to climate change research.

Research to study the health effects of forests

The ICTA-UAB, CREAF and the "la Caixa" Bank Foundation recently presented the project "Healthy Forests for a Healthy Society".

Blockadia map by ICTA-UAB reveals global scale of anti-fossil fuel movement

A new interactive map by researchers of the Institute of Environmental Science and Technology of the Universitat Autonoma de Barcelona (ICTA-UAB) reveals the worldwide impact of resistance direct actions by people putting their own bodies in the way of fossil fuel projects.

The ICTA-UAB participated in the 100xCiencia.2 meeting in Alicante

The encounter, which was focused on the transfer of knowledge and technology, brought together representatives of 40 centres and research units “Severo Ochoa” and “María de Maeztu”, respectively.

Launch of the Alliance of Severo Ochoa Centres and Maria de Maeztu Units of Excellence

​ The Secretary of State for R&D+i, Carmen Vela, chaired the kickoff meeting of the new Severo Ochoa and Maria Maeztu Alliance of Excellence.

Green gentrification can limit the favourable effects of green areas on health

A scientific research conducted by ICTA-UAB and IMIM suggests that more socially disadvantaged neighbours do not benefit equally from the effects newly created green areas have on health.

Oil contamination in the Amazon modifies chemical composition of rivers

A scientific study by the ICTA-UAB and ISS-EUR quantifies the environmental impact of oil extraction activities and contamination in headwaters of the Amazon.

ICTA-UAB researchers alert that oil palm plantations produce infertility in tropical lands

Oil palm plantations are replacing 40% of tropical forests and 32% of basic grain crops, according to an ICTA-UAB research conducted in Guatemala.

UAB scientists and citizens can identify Barcelona's allergy-causing plants with the new Plant*tes app

The UAB Point of Information on Aerobiology (PIA) presented its new Plant*tes app in Barcelona as part of the BArcelona City Council's project entitled "Ciència Ciutadana als barris".

EJAtlas Includes 2,100 Case Studies on Socio-Environmental Conflicts Around the World

The Environmental Justice Atlas (EJAtlas), created by researchers of the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), currently includes 2,100 cases of ecological distribution conflicts identified in different parts of the world.

Unrestricted Improvements in Fishing Technology Threaten the Future of Seafood

A study conducted by ICTA-UAB researcher Eric Galbraith shows that future improvement of fishing technology poses a threat for the global fishery that could be greater than climate change.

Ice age thermostat prevented extreme climate cooling

During the ice ages, an unidentified regulatory mechanism prevented atmospheric CO2 concentrations from falling below a level that could have led to runaway cooling, reports a study conducted by researchers of the ICTA-UAB and published online in Nature Geoscience this week.

The New Theory of Economic “Agrowth” Contributes to the Viability of Climate Policies

 ICTA-UAB researcher Jeroen van den Bergh publishes in Nature Climate Change a study in which he proposes a new economic theory compatible with the fight against climate change.

European Project to Analyse the Effects of Waste Generated by Tourism on Mediterranean Islands

An European study involving the Institute of Environmental Science and Technology of the Universitat Autònoma e Barcelona will address and propose solutions to the effects of the increase of waste generated by tourism on Mediterranean islands during the summer season.

New ICTA-UAB 'Welcome Guide'

The new ICTA-UAB 'Welcome Guide' it is at your disposal now. With this document, we aim to help you discover the basics of the PhD programme, ICTA-UAB’s structure, etc.
Seminaris
Seminar- Carbon storage and its release from the glacial ocean: leaky pumps and seesaws. By Prof. Luke Skinner

Date: 2017-03-17

Title: Carbon storage and its release from the glacial ocean: leaky pumps and seesaws

Prof. Luke Skinner, University of Cambridge


Date: Friday, March 17, 2017
Time: 11:30h
Venue: Room Z/023

It has long been postulated that the key contributor to lower atmospheric CO2 during past glacial periods was a more efficient marine biological pump, which sequestered more of the ocean’s carbon pool as respired carbon deep in the ocean’s interior.  A further long-standing question is whether the putative increase in pump efficiency was achieved primarily by an increase in the ‘strength’ of the soft tissue pump (overall, or relative to the carbonate pump), or a reduction in its ‘leakiness’. The former would implicate a major role for changing nutrient supply to the ocean, in particular from atmospheric sources (e.g. dust-driven ‘iron fertilization’).  The latter would implicate the ocean circulation and ocean-atmosphere gas exchange processes instead. However, these two regulators of biological pump efficiency are not mutually exclusive: both can operate together, and to greater effect. 

This seminar consists of two parts: the first focuses on the causes of respired carbon sequestration in the ocean interior at the Last Glacial Maximum (LGM), while the second focuses on the release of this carbon to the atmosphere during deglaciation.  In both instances, the role of the ocean circulation is emphasised, though not to the exclusion of other contributing mechanisms. Emerging radiocarbon data thus demonstrate quite clearly that the ocean was more poorly ‘ventilated’ at the Last Glacial Maximum, perhaps by the equivalent of ~700 14Cyrs on average. A significant impact on atmospheric CO2 is implied, and supported by new oxygenation and carbonate ion reconstructions, as well as simple scaling arguments and box-model experiments.  During deglaciation, globally distributed records of radiocarbon, stable isotopes and oxygenation track the release of previously sequestered respired carbon back into the atmosphere. These records paint a picture of two ‘ventilation seesaws’ operating in the North Pacific and Southern Ocean, and apparently triggered via the North Atlantic.  Together, and via their connection to opposing ventilation changes in the North Atlantic, these seesaws might help to explain both a ‘fast but limted’ and a ‘slow but strong’ component to deglacial atmospheric CO2 rise.

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