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First, there were the fish. Then (about 400 million years later) there was a lot of fishing. That’s when we came along. An eclectic bunch of design thinkers, business consultants, journalists, and scientists, we believe in the power of entrepreneurship and collaboration as potent forces for positive change in the world—including in the oceans. The Antarctic Circumpolar Current encircles that continent, influencing the area’s climate and connecting currents in several oceans. The word « ocean » comes from the figure in classical antiquity, Oceanus (/oʊˈsiːənəs/; Greek: Ὠκεανός Ōkeanós,[13] pronounced [ɔːkeanós]), the elder of the Titans in classical Greek mythology, believed by the ancient Greeks and Romans to be the divine personification of the sea, an enormous river encircling the world. A zone of rapid salinity increase with depth is called a halocline. The temperature of maximum density of seawater decreases as its salt content increases. Freezing temperature of water decreases with salinity, and boiling temperature of water increases with salinity. Typical seawater freezes at around −1.9 °C at atmospheric pressure. If precipitation exceeds evaporation, as is the case in polar and temperate regions, salinity will be lower. If evaporation exceeds precipitation, as is the case in tropical regions, salinity will be higher. Thus, oceanic waters in polar regions have lower salinity content than oceanic waters in temperate and tropical regions.[55] In-depth coverage of ocean health. Learn more about us. What was the ocean like when dinosaurs roamed the Earth? As scientists from around the world gathered in San Diego this week at the Sixth International Marine Debris Conference, much of the discussion has been about plastic pollution of the ocean. In particular, synthetic microfibers that clothing sheds in washing machines passing through wastewater treatment plants and into the sea. Seychelles has announced two new Marine Protected Areas covering 210,000 square kilometers of biodiverse ocean waters. Tins of tuna state that they are “dolphin-friendly” so should products using cobalt say if the metal was mined on land or in the ocean? What would the best choice be anyway? Should the vents so special to Attenborough be spared and only nodule mining allowed? Why: Bring app developers to the trove of available ocean data in order to catalyze the growth of a potentially multi-billion-dollar industry in ocean data products. The Mars ocean hypothesis suggests that nearly a third of the surface of Mars was once covered by water, though the water on Mars is no longer oceanic (much of it residing in the ice caps). The possibility continues to be studied along with reasons for their apparent disappearance. Astronomers think that Venus had liquid water and perhaps oceans in its very early history.[citation needed] If they existed, all later vanished via resurfacing. Seychelles has announced two new Marine Protected Areas covering 210,000 square kilometers of biodiverse ocean waters. Exploring and studying them is critical to protect these valuable resources for future generations. Uncover why we need to protect the oceans, find out how to get involved and dive into cutting-edge research about life underwater. OceanSITES is a worldwide system of long-term, open-ocean reference stations measuring dozens of variables and monitoring the full depth of the ocean from air-sea interactions down to the seafloor. It is a network of stations or observatories measuring many aspects of the ocean’s surface and water column using, where possible, automated systems with advanced sensors and telecommunications systems, yielding high time resolution, often in real-time, while building a long record. Observations cover meteorology, physical oceanography, transport of water, biogeochemistry, and parameters relevant to the carbon cycle, ocean acidification, the ecosystem, and geophysics. What was the ocean like when dinosaurs roamed the Earth? Seychelles has announced two new Marine Protected Areas covering 210,000 square kilometers of biodiverse ocean waters. In an air-conditioned cabin in a teeming port in Papua New Guinea, Leslie Kewa reaches for a joystick that will control a machine the size of a house. Nearly half a century after the CIA men pretended to mine the ocean floor, he’s about to do it for real. Join the next generation taking the ocean crisis into their own hands.  The most important legacies of the UN Decade of Ocean Science will be a new generation of ocean scientists and technicians, with the establishment of new research networks, and a new generation of enhanced observational systems, facilities and infrastructure that will help countries achieve the 2030 Agenda for Sustainable Development. The Decade will also raise unprecedented levels of interest and participation from youth, the general public, and decision-makers around the globe. One of the authors, Prof Edward Hill from the UK National Oceanography Centre told BBC News: “The ocean is critical to our economic future. Nine billion people will be looking to the ocean for more food. Yet we know so little of what’s down there. Do głównych form ukształtowania dna oceanicznego zalicza się: But there’s no other option. The machine will soon be deployed not in the huge pits of an opencast mine on land but in the sunless depths a mile underwater on the ocean floor. On completion of studies a graduate will: -to do designing and construction works in scope of ocean engineering, -to do development works in scope of maritime technology, -to manage of production, exploitation and repairs of ships and others, -to use computers and other new technology, -to know foreign language on level B2 of European System -to work in multi-international teams, -to be ready to studying on higher level. Oceans, seas, lakes and other bodies of liquids can be composed of liquids other than water, for example the hydrocarbon lakes on Titan. The possibility of seas of nitrogen on Triton was also considered but ruled out.[74] There is evidence that the icy surfaces of the moons Ganymede, Callisto, Europa, Titan and Enceladus are shells floating on oceans of very dense liquid water or water–ammonia.[75][76][77][78][79] Earth is often called the ocean planet because it is 70% covered in water.[80][81] Extrasolar terrestrial planets that are extremely close to their parent star will be tidally locked and so one half of the planet will be a magma ocean.[82] It is also possible that terrestrial planets had magma oceans at some point during their formation as a result of giant impacts.[83] Hot Neptunes close to their star could lose their atmospheres via hydrodynamic escape, leaving behind their cores with various liquids on the surface.[84] Where there are suitable temperatures and pressures, volatile chemicals that might exist as liquids in abundant quantities on planets include ammonia, argon, carbon disulfide, ethane, hydrazine, hydrogen, hydrogen cyanide, hydrogen sulfide, methane, neon, nitrogen, nitric oxide, phosphine, silane, sulfuric acid, and water.[85] The geologist Bram Murton has warned of “an ill-informed knee-jerk reaction” to ocean mining which, he says, offers the potential to support a low-carbon future. But his instrument was never used on the ocean lines, and, indeed, it was not adapted for them. “The abyssal plains,” he asserted, “may have the highest biodiversity in the oceans, maybe the highest biodiversity on the planet.” Nautilus Minerals forecasts that in copper alone an emerging undersea industry in oceans around the world could be worth $30bn a year by 2030. And it claims that by mining a small area of seabed, the venture will be friendlier to the environment. It contrasts its work with mines on land where trees and topsoil are swept away across vast areas. This challenge is important because there is a wealth of ocean data being collected, but so little of it being used. As long as ocean data remains disconnected, we are unable to address the critical challenges our ocean faces. Some delegations were already hostile, but Pardo was well prepared and passionate, even lyrical. The dark oceans, he said, “were the womb of life”. He then quoted John Mero’s research into the “astounding” contents of the billions of nodules lying untouched on the seabed – enough aluminium to last 20,000 years, zirconium for 100,000 years and cobalt for 200,000 years. ver como agrandar el miembro masculino gratis i love is your life come aumentare la massa muscolare alimentazione alargar las pestañas con talco el omega 3 ayuda a aumentar la masa muscular esercizi per aumentare interno coscia cirugia plastica de pene alimentazione x massa alargamiento coronario dental tecnica dieta masa muscular 2014 whey protein vrouwen ho il pene enorme medicina per far crescere i capelli integratori e massa muscolare pastillas ereccion alargador 1mm feminino rosa subir masa corporal alargador 2mm como agrandar los labios sin cirugia allungamento muscolare passivo aumentar la masa muscular despues de los 40 cambiar tamaño disco duro virtualbox vmdk comment prendre du poid a l’adolescence caduta capelli donne comment agrandire son penice prostata operation nachwirkungen come allungare le scarpe da calcio alargador 1mm é igual brinco como alargar sapatos novos peniksen