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2
May

 

Eucalyptus, between love and hate

 
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Were a key part to repopulate the forests punished the Spanish Civil War and today, its commercial exploitation generates significant economic benefits. However, the poor location of certain masses of eucalyptus forest officials face. SINC analyzes the presence of this plantation, mistakenly called ‘forest’ on many occasions

“Eucalyptus is not to blame for acting like a eucalyptus tree,” says Anton Lois, vocal communication and activism of the environmental organization Galician Amigos da Terra. And, few trees such as eucalyptus (Eucalyptus), Of Australian origin, generated so much controversy around him.

Accused of being invasive species, detrimental to the conservation of fauna and flora and the management of water resources, environmentalists and scientists agree that the problem is not the tree but in the forest management policies are made.

The incorrect location of these plantations is a disadvantage. “The high slope and low fertility of many of the areas that were in production were incompatible with a strong forestry and economic management,” says Patricia Alesso, coordinator of the Research and Documentation Center of Eucalyptus (CIDEU) under the Universidad de Huelva.

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Category: Earth Science and SpaceTags: Eucalyptus
 

29
Apr

 

International meeting on environmental justice conflicts and international trade

 
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The Institute of Environmental Science and Technology (ICTA) of the Universitat Autònoma de Barcelona organizes, on April 28, the event “Environmental Justice: Stories from the borders”, a meeting of leading experts in environmental justice conflicts and international trade. The event will take place at 18h in the Casa del Mar (c / Albareda 1-13, Barcelona) and will mark the beginning of EJOLT European research project coordinated by the ICTA, which will create an international map of this type of conflict.

Leached radioactive nuclear leaks and oil pollution, deforestation in the Amazon, these and other recent events have placed in the center of the debate the role and responsibility of corporations in environmental disasters. To mark the start of the project EJOLT, ICTA, UAB organizes the event “Environmental Justice: Stories from the borders”, a meeting of international experts, activists and scholars, specialists in environmental justice conflicts and international trade, involving of distinguished speakers and Nnimmo Bassey, alternative Nobel prize for environmental protection, and Patrick Bond, a political economist of the Department of Development Studies at the University of KwaZulu-Natal in Durban.

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Category: Earth Science and SpaceTags: disasters, environmental justice
 

28
Apr

 

The city installed a network of detection in Hontomin microterremotos

 
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Technical Energy City Foundation (City, based in Ponferrada, Leon-) have just completed the installation of a microterremotos detection network in the area where the plant will be located Technological Development of Geologic Storage of CO2 in the around the town of Burgos Hontomin. This task has been carried out for several months until the installation of 30 high-precision microseismic stations for data collection and registration can detect microterremotos taking place underground.

The earthquake detection network consists of stations that are solar powered and consist of sensors buried two meters capable of measuring three-dimensional movements and send signals to the detectors, which entails taking measures magnitudes of movements that occur in the subsoil, explains the city, as recorded DiCYT.

In the initial phase are taking measurements of natural vibrations of the ground or “seismic noise” that will then be used for investigations of CO2 injection. In addition, this network is able to detect earthquakes worldwide produced a certain extent as occurred in Japan last month and its continuing aftershocks. Also, technicians Ciuden other detectors have been installed to record ground other variables, such as naturally occurring CO2 in the air, layout and composition of the deep rock layers, the gravitational field, electrical and magnetic natural, among others.

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Category: Earth Science and SpaceTags: earthquake detection, microterremotos
 

28
Apr

 

Marine currents south of Africa, the key to stabilizing the climate in Europe

 
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An international team of scientists, with Spanish participation, has studied the effect of feeding salt waters of the Agulhas Current (South Africa) to the Atlantic in conditions of global warming. The paper analyzes how the flow can compensate for the decrease of salinity in stabilizing North Atlantic and European climate.

The Gulf Stream (located in the Gulf of Mexico) has always called attention to oceanographers and climatologists. This flow transports huge amounts of warm tropical waters to the North Atlantic and Europe provides a habitable climate.

However, other trends are also important in relation to future systems of currents in the North Atlantic. This was revealed by a survey published today Nature. Experts describe an alternative approach and emphasize the importance of water flow in the Indian Ocean to the South Atlantic (around the southern tip of Africa), the so-called Agulhas current.

This stream, located in the southwest Indian Ocean, carrying waters of high salinity to the southern tip of Africa, where some of them escape to the South Atlantic, which contributes to the strength of the global circulation in the ocean.

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Category: Earth Science and SpaceTags: marine currents
 

26
Apr

 

Was first observed juvenile crayfish under a year old to ninety feet deep

 
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A researcher at the Spanish Institute of Oceanography (IEO) explored during the first half of April, channel funds Menorca aboard the German submarine JAGO, looking for newly settled juveniles of the spiny lobster. This technology has successfully been able to confirm the hypothesis that recruitment depth is viable.

David Diaz of the Marine Reserves team and Coastal Ecology (RESMARE) Balearic Oceanographic Centre of the Spanish Institute of Oceanography (IEO) conducted several dives in the submarine, manned JAGO, in order to determine the biological, environmental and physiographic areas in which supposedly concentrate juvenile spiny lobster (Palinurus Elephas).

There were three dives, each of which are prospective for four hours a transect of more than one kilometer in length between 70 and 90 m depth by scuba unviable. The main objective of the dives was the visual censuses from the submarine, obtaining a complete record of the transect with a video camera high definition. In the dives were determined the most characteristic species of crustaceans and fish, and there was a general description of the observed communities. Detailed information on habitat and biological characteristics and environmental funds will Lobster a posteriori from comprehensive analysis of the images in the film.

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Category: Earth Science and SpaceTags: crayfish
 

19
Apr

 

Competition prolongs the Big Bang Game

 
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The end of the competitive phase of the Big Bang Game 2.0 is postponed until Tuesday 31 May. The increasing growth has forced users to consider the possibility of giving the players 30 days of competition to be eligible for one of the many prizes offered by the innovative project of the Museum of Science and Technology of Catalonia.

Users and players of the game of Big Bang have 30 days to prove who is the best expert and player in the new edition of the platform. The decision, driven by the organization, aims to strengthen the relationship with users from social networking. The project supports the influence of social networks as a tool of scientific and aims to end this edition with a virtual community established. The growing number of users from networks like Twitter and Facebook has been contemplating the possibility of extending the competition as well as giving more room for participants and fans of the game.

Already know the three first prizes of the individual category, the first trip to Geneva to visit CERN, followed by an e-book and a digital camera. Moreover, also called the first prize in the category of group, a visit to Alba synchrotron located in the Vallès Technology Park (Barcelona). To be defined individual prizes for the best players of each game and the second and third prize category group.

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Category: Earth Science and SpaceTags: Big Bang Game
 

14
Apr

 

First discovered deposits of tsunamis in Tenerife

 
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A research team from the Spanish-Portuguese, led by the Geological Survey of Spain (IGME) has identified and described for the first time deposits of tsunamis caused by landslides and large explosive eruptions on the island of Tenerife. The discovery is exceptional because of the difficulty of finding in the Canary Islands tsunami deposits.

According to researchers from IGME, Universidad Complutense de Madrid, the Island Council of Tenerife Water, and the University of Lisbon, the tsunami described in Tenerife, and that sent waves over 50 meters high, were associated with the destruction of volcano of Las Cañadas, previous to the current Teide.

The materials carried by the waves, consisting of detrital sediments with pebbles and angular fragments of all kinds, and shells and mollusks, were deposited on the platform lavas of Teno in the northwest of Tenerife. Have survived until now thanks to its lithification and coating with a powerful layer of soil.

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Category: Earth Science and SpaceTags: tsunamis
 

8
Apr

 

Scientists at the Universitat de Valencia help explain what causes the most massive cosmic explosions known

 
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The collision of neutron stars leads to very powerful gamma flashes. For a split second, a gamma-ray burst is as bright as all the stars visible from Earth, producing gravitational waves in space and were predicted by Albert Einstein in his Theory of Relativity, but until now no have been detected. The amplitude, duration and specific form of these waves is a mystery, then, to science. Your understanding would bring us closer, possibly the keys of an inexhaustible source of energy from the black hole accretion. The work is published today in Astrophysical Journal Letters provides very valuable results and new tools to pursue and successfully carry out research in this field of astrophysics.

These bursts have puzzled scientists for years: it is gamma flashes of light that reaches the more energy released in a split second that they produce all the stars visible in the same period of time. What causes these explosions? An international team of scientists working in the teacher of the University of Valencia, Miguel A. Aloy is one step closer to solving the riddle. In the computations carried out for six weeks in the supercomputers of the Max-Planck Institute for Gravitational Physics, the researchers simulated how the fusion of two neutron stars with small magnetic fields form a black hole surrounded by a hot accretion torus. In this process, an extremely intense magnetic field jet structure is formed along the axis of rotation. This magnetic field is crucial to understanding the process of generation of gamma ray bursts of short duration, the resulting chaos after the collision, they form an ordered structure, a huge jet of plasma energy in the short gamma-ray duration can occur. (Astrophysical Journal Letters, 2011).

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Category: Earth Science and SpaceTags: massive cosmic explosions
 

8
Apr

 

The dynamics of the settlement of the spiny lobster, a study

 
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Researchers at the Spanish Institute of Oceanography (IEO) are studying, thanks to the installation of artificial collectors, a key process in the life cycle of the spiny lobster ( Palinurus Elephas ): the moment of transition from larval dispersal in the water column and transfer to life on rocky bottoms.

Researchers and technicians Baleares Oceanographic Centre of the Spanish Institute of Oceanography (IEO), the Directorate General of Fisheries of the Balearic Government, the General Secretariat of the Sea and the marine reserve Cala Ratjada yesterday successfully completed the installation of three collecting stations artificial to consider the settlement of the juvenile stages of the lobster ( Palinurus Elephas ), in the north of the island of Mallorca.

Thanks to these collectors researchers can quantify the dynamics of the settlement of the locust, phase transition between the last larval stage (filosoma) and the first benthic stage (post-puerulus). This is the first step to obtain a time series allowing in the future conduct recruitment prediction estimates of the species in the commercial fishery, and so advise in a more efficient authorities to regulate this precious marine resource.

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Category: Earth Science and SpaceTags: spiny lobster
 

4
Apr

 

Mars analagos found in the Catalan Pyrenees

 
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A study coordinated by the Autonomous University of Barcelona (UAB) on the origin and evolution of a unique ancient morphologies caused by discharges of groundwater in the central Pyrenees Catalan raises new questions for research planetary geomorphology. Like a small volcano, these formations, described so far only in Australia, are very similar to other forms of gigantic size located on Mars. Its study could shed new light on the origin of these formations and water research on the red planet.

Over recent years, a group of researchers from several universities and research centers, coordinated by Rogelio Linares, Professor, Department of Geology and Geological Survey researcher Cabinet Planning and Environmental Analysis of the UAB-GATA – have been geomorphological out applied research in the area of the central Pyrenees Catalan. Part of the results have been published in a special issue of the journal Acta Geodynamics .

The publication, coordinated by some of Europe’s leading specialists, corresponds to a selection of papers presented at the European Geosciences Union General Assembly held in Vienna in 2009.

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Category: Earth Science and SpaceTags: ancient geologic record, Catalan Pyrenees
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