Australian scientists, including Hughes have said these majorbleaching events "didn't exist 30 years ago" and are entirely aconsequence of the global failure to tackle greenhouse gasemissions, highlighting the importance of limiting average globaltemperature rises to below two degrees Celsius.
However James Cook University marine geophysicist ProfessorPeter Ridd believes rather than "another scare story" on the coralbleaching that is ultimately human induced Hombre Nike Cortez Classic Nylon Deep Azul Blancas Zapatillas , the reef will fairbetter and potentially grow from the rise in temperature.
Ridd argues the annual and spatial variability of watertemperature is far greater than the small average temperature riseover the last century, thus temperature rises would have broken thebleaching threshold "long before marine biologists first noticedbleaching".
"All the corals that live on the GBR live in water aroundIndonesia where the temperature is much higher than in the GBR butgrow much faster and better than our reefs," Ridd said.
"We should be predicting that the GBR will grow better from amodest temperature rise.
"This is yet another scare story and in the end it will reflectbadly on science."
Coral reefs are one of the most important and productive marineecosystems that the world depends on for tourism and fisherysustainability.
Coral bleaching occurs when stress such as heat caused theanimal to expel the symbiotic algae, loosing vital nutrients andenergy reserves, thus color Mujer Nike Cortez Classic Nylon Rosa Blancas Zapatillas , leading to the wide scale loss ofproductive habitats for fish.
The coral host then becomes weak and susceptible to disease, andwhen bleaching is prolonged, the animal can die.
Recent research suggests corals with high levels of fat or otherenergy reserves can withstand annual bleaching events, which iscritical to predicting the persistence of corals and their capacityto recover from more frequent events resulting from climatechange.
Severe bleaching events however may take highly impacted coralreefs up to 10 years to recover.
Scientists are hoping for bad weather, such as clouds Hombre Nike Cortez Classic Nylon Negras Verde Zapatillas , rain andstorms to mix the water and keep temperatures at bay on the GBR,otherwise the still conditions -- ideal for tourists -- over thenext few weeks will ramp up the heat. Enditem
MADRID, Oct. 9 (Xinhua) -- The effects of the current outbreak of Ebola in West Africa and also the ongoing scare over the possibility of the disease spreading to Europe following the infection of a Spanish nursing auxiliary in Madrid have also affected the world of sport.
Lass Bangoura who plays for Madrid based club, Rayo Vallecano, decided to leave the training camp of the Guinea-Conakry national team because of the possible risk of becoming infected with the disease.
Guinea were to play Ghana in an African Nations Cup qualifying game in Casablanca Hombre Nike NSW Cortez Flyknit Negras Gold Zapatillas , but the Rayo midfielder, who insisted he had not been requested by his club to abandon the national team, is now back in Spain and will accept any sanction his country should choose to hand him.
The African Nations match between Cameroon and Sierra Leone has also been affected by the outbreak of the virus and the game, which includes several Spanish based players (Stefane M' Bia, (Sevilla) Hombre Nike NSW Cortez Flyknit Negras Blancas Zapatillas , Ondoa, (Barca B) and Raul Loe (Ossasuna), will now be played in the Cameroon rather than in Sierra Leone, which is one of the countries most affected by the virus.
The African Football Confederation has also asked Sierra Leone not to take any players who are currently playing in their homeland die to the risk of spreading the disease.
Meanwhile speaking in the El Correo newspaper, Tomas Calero ike Roshe Cortez NM SP Negras Blancas , the Chief of Medical Services at Spanish club Betis and spokesman for the Spanish Association for Football Club Doctors explained that, "as football club doctors we have to follow the advice of the health Ministry and health centers. While the FIFA and UEFA do not say they are worried, we have to allow our players to travel and we have not asked any players to leave their training camps."
A flock of nationally-protected wild geese fly over Poyang Lake in East China's Jiangxi Province. Photo: CFP
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