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.

¿Son los Pirineos una barrera real para el transporte atmosférico de polen?

Los resultados del estudio llevado a cabo por Jordina Belmonte y Concepción de Linares, investigadoras expertas en botánica de la UAB, constatan que el polen de abedul, una de las especies principales de plantas que causan alergia en Europa Central y del Norte.

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.

Map Commemorating Women’s Resistance to Extractivism and Defense of Life and Territory in Latin America

A map created by researchers at the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), the Latin-American Network of Women Defending Social and Environmental Rights and the Colombian NGO CENSAT-Agua Viva Friends of the Earth Colombia makes visible the struggles of women in Latin America against mining and in defense of life.

Es preveuen alts nivells de pol·len per a aquesta primavera

Investigadors de la Xarxa Aerobiològica de Catalunya de l’ICTA-UAB han presentat avui les previsions dels nivells de pol·len i espores a l’atmosfera a Catalunya per a la primavera i l’estiu.

The Azores Islands were inhabited a century and a half before the Portuguese colonization, according to the fossil pollen found in a...

• Research involving the ICTA-UAB finds pollen of rye and other cereals in the sediments of Lago Azul and redefines the timing of human occupation of the Portuguese archipelago.

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.

El ICTA-UAB volverá Locos por la Naturaleza a 27 estudiantes de bachillerato

Un total de 27 estudiantes de bachillerato participan en la tercera edición del programa Locos por la Naturaleza que ofrece el Institut de Ciència i Tecnologia Ambientals de la Universitat Autònoma de Barcelona (ICTA-UAB) con la voluntad de promover el talento científico entre los jóvenes potenciando el conocimiento del medio natural y poniéndolos en contacto con los principales investigadores en la materia.

More Urban Green Needed in Barcelona to Have Positive Effects on Environmental Quality and Wellness

A PhD dissertation by Francesc Baró, from ICTA-UAB, quantifies and maps the benefits of urban and periurban green in Barcelona such as the improvement of air quality, climate change mitigation and opportunities for outdoor recreation.

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.

Social Relations, Success in Hunting and Good Health, Sources of Happiness for Indigenous People

Rural and indigenous people from the Global South push absolute income into the background as source of wellbeing.

Treatment plants reduce contamination of heavy metals around Barcelona's coastline

The study, published in Science of the Total Environment, shows that contamination of heavy metals experienced a very important growth between the 1930s and 1980s, while a drastic descent in levels occurred in the 1990s.

Increase in motorcycles converts Barcelona into the European city with the highest number of motorbikes per inhabitant

A study by researchers of the ICTA-UAB and the UAB Department of Geography assesses the rise of motorcycles compared with the drop in cars in Barcelona in the past ten years.

More than One-Third of the Population Would Stop Economic Growth to Achieve Sustainability

A study by researchers of the Institut of Environmental Science and Technology (ICTA-UAB) assesses Spanish public opinion on economic growth, the environment and prosperity.

ICTA-UAB and ISGlobal Researchers Denounce Lack of Studies on the Harmful Health Effects of Oil Spills

A project led by ICTA-UAB, ISGlobal and the UAB Faculty of Veterinary Medicine in the Peruvian Amazon analyses the health effects of oil spills among people living close to oil extraction areas in developing countries.

Humans have caused climate change for 180 years

An international research project involving ICTA-UAB researcher P. Graham Mortyn has found human activity has been causing global warming for almost two centuries, proving human-induced climate change is not just a 20th century phenomenon.

Do Greener Cities Become More Unjust?

A new research project led by ICTA-UAB researcher Isabelle Anguelovski and funded by the European Union will assess the “green gentrification” process by which the creation of green urban amenities tends to attract the higher social classes and excludes the most vulnerable groups.

The ICTA-UAB Will Assess, in Collaboration with EU Staff, the Effectiveness of EU Sustainability Policies

The EU Project MAGIC (H2020) coordinated by the Institut de Ciència i Tecnologia Ambientals de la Universitat Autònoma de Barcelona (ICTA-UAB) has the goal to study and develop new strategies for a better use of science for governance.

ICTA-UAB receives María de Maeztu Excellence Award

The Institute of Environmental Science and Technology has received the award as a "María de Maeztu" Unit of Excellence 2015 from the Spanish Ministry of Economy and Competitiveness (MINECO).
News
Importance of Saharan dust and climate change effects under study

Date: 2016-05-06

ICREA researcher Antoni Rosell, from ICTA-UAB, participates in an international research which analyses the processes of transport and deposition of Saharan dust and African fires. Environmental dust contributes to the cooling of the planet and fertilises oceans.

Studying the processes of transport and deposition of dust from the Saharan desert and African fires to determine its importance in regulating the planet's climate and marine ecosystems. These are the main objectives of the scientific expedition JC134 of the Royal Research Ship James Cook, organised by the NIOZ Royal Netherlands Institute for Sea Research and in which ICREA researcher Antoni Rosell, from ICTA-UAB, participated. This is the last transatlantic cruise conducted under the framework of the Dust Traffic project led by Jan Berend Stuut and funded by the European Research Council (ERC).

The project aims to quantify transatlantic dust and soot flows from Africa and their influence on climate change processes such as ocean fertilisation and change in the energetic balance of the atmosphere. 

To do so, researchers gathered samples of desert dust along the ocean from close to Venezuela in the Caribbean to Cape Verde and the Canary Islands. This is a good moment in the year to conduct the research given that the winds are blowing from the African continent towards South America, the Sahara is the dustiest desert in the planet and Central Africa is where the majority of fires originate. 

For four weeks, the scientific expedition gathered samples of mineral desert dust and soot suspended in the air above the Atlantic Ocean heading towards South America by using dust collectors and buoys. 

"We want to analyse the process of transport and redistribution of these materials all over the planet and particularly from the African continent to the ocean and even to other continents", explains lecturer and ICTA-UAB researcher Antoni Rosell, who highlighted the importance of dust in the regulation of the planet's climate. Atmospheric dust contributes to the cooling of the planet by acting as a screen when suspended in air, therefore reflecting solar light back into space. Rosell adds that "when deposited in oceans, the nutrients it carries allows fertilising the ocean and contributes to a greater productivity of algae, which absorbs the CO2 found in the atmosphere". 

Scientists consider it necessary to perform in-depth studies of the functions of this mineral dust and the effects of its moving around the planet. "We need to learn about the composition of the particles, how they are transported and the effects it can have on the areas in which it is deposited", Rosell states. 

The scientists analyse the size of the particles, the composition of each one of them and their degree of mobility according to their composition. They will also study how the dust from Central African fires is transported and analyse its organic composition. 

The final objective is to understand current processes in order to reconstruct past climate changes and thus be able to predict future processes and tendencies.




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