http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. The ocean the Titanic sailed through just over 100 years ago was very different from the one we swim in today. Global warming is increasing ocean temperatures and harming marine food webs. Nitrogen run-off from fertilizers is causing coastal dead zones. A McGill-led international research team has now completed the first global study of changes that occurred in a crucial component of ocean chemistry, the nitrogen cycle, at the end of the last ice age. The results of their study confirm that oceans are good at balancing the nitrogen cycle on a global scale. But the data also shows that it is a slow process that may take many centuries, or even millennia, raising worries about the effects of the scale and speed of current changes in the ocean. http://phys.org/news290428849.html Space & Earth Fri, 14 Jun 2013 11:40:57 EST news290428849 In the race against climate change and ocean acidification, some sea urchins may still have a few tricks up their spiny sleeves, suggesting that adaptation will likely play a large role for the sea creatures as the carbon content of the ocean increases. http://phys.org/news290279327.html Space & Earth Wed, 12 Jun 2013 18:08:56 EST news290279327 International research has suggested that many coral species won't survive beyond the end of this century, but marine biologists at Victoria University are offering an alternative scenario. http://phys.org/news287134655.html Biology Tue, 07 May 2013 08:38:03 EST news287134655 More than 160 researchers across 10 European countries joined together, in what is being hailed as the first international project to focus on ocean acidification and its consequences. http://phys.org/news286439180.html Space & Earth Mon, 29 Apr 2013 08:10:04 EST news286439180 A research team led by biogeochemists at the University of California, Riverside has tested a popular hypothesis in paleo-ocean chemistry, and proved it false. http://phys.org/news275488038.html Biology Sun, 23 Dec 2012 13:00:53 EST news275488038 NOAA ocean explorers used an advanced multibeam sonar mapping system on NOAA Ship Okeanos Explorer last month to discover and map the first deepwater gas seeps found off the U.S. Atlantic Coast north of Cape Hatteras. The seeps were found at water depths greater than 1,000 meters (3,300 feet). Based on preliminary information, scientists believe the seeps are likely emitting methane gas. http://phys.org/news275216382.html Space & Earth Thu, 20 Dec 2012 08:59:49 EST news275216382 (Phys.org)—A research team supported by the National Science Foundation (NSF) has retrieved data from a sensor in Antarctic waters that will provide critical baseline data on the changes in chemistry or acidification in those remote seas. http://phys.org/news269850748.html Space & Earth Fri, 19 Oct 2012 07:32:41 EST news269850748 An environmental group asked the U.S. government on Thursday to consider classifying the orange clownfish - Nemo, to a whole generation of children - as endangered. http://phys.org/news267105822.html Biology Mon, 17 Sep 2012 14:00:02 EST news267105822 Like their warrior ancestors, leaders of many Pacific Island nations have been making efforts to safeguard their countries, this time by sounding an alarm as the impact of climate change becomes more apparent. Today their efforts received a big boost with the release of a Scientific Consensus Statement on Climate Change and Coral Reefs that is supported by over 2,400 scientists, showing the threats that reef corals are under across the globe and calling for governments worldwide to take steps to protect valuable coral reef ecosystems. The statement was drafted by a group of eminent scientists under the auspices of the Center for Ocean Solutions (COS) at Stanford University in California and was released at the 12th International Coral Reef Symposium in Cairns, Australia. http://phys.org/news261069612.html Space & Earth Mon, 09 Jul 2012 16:20:19 EST news261069612 A little less than 2 billion years ago, metals including copper, molybdenum and zinc became available to primitive cells, at the same time that the cells began to become much more complex. Scientists indicate that they have identified the event that introduced these metals, which made it possible for those primitive cells to develop, evolve, and spread. http://phys.org/news259480306.html Space & Earth Thu, 21 Jun 2012 06:52:06 EST news259480306 (Phys.org) -- Researchers studying organisms in Mexico's Lake Alchichica have discovered a new species of cyanobacterium that unlike any other ever found, has bony, intracellular carbonates. Up till now, specimens with such mineral deposits in their systems have, as the team explains in their paper published in the journal Science, had them on the outsides of their cells. http://phys.org/news254993565.html Biology Mon, 30 Apr 2012 09:10:01 EST news254993565 Over the last half a billion years, the ocean has mostly been full of oxygen and teeming with animal life. But earlier, before animals had evolved, oxygen was harder to come by. Now a new study led by researchers at the University of California, Riverside reveals that the ancient deep ocean was not only devoid of oxygen but also rich in iron, a key biological nutrient, for nearly a billion years longer than previously thought -- right through a key evolutionary interval that culminated in the first rise of animals. http://phys.org/news234618821.html Space & Earth Wed, 07 Sep 2011 13:00:01 EST news234618821 Changes in ocean chemistry due to increased carbon dioxide (CO2) emissions are expected to damage shellfish populations around the world, but some nations will feel the impacts much sooner and more intensely than others, according to a study by scientists at Woods Hole Oceanographic Institution (WHOI). http://phys.org/news231506049.html Space & Earth Tue, 02 Aug 2011 12:14:40 EST news231506049 The baby crabs look like lint specs swirling in glass jars. The 3-day-old geoducks are too small to even see. http://phys.org/news222264744.html Space & Earth Sun, 17 Apr 2011 13:13:16 EST news222264744 Research published today reveals the previously unidentified role that fish play in the production of sediments in the world's oceans, and specifically of the carbonate sediments that contain critical records of changes in ocean chemistry and climate shifts in the geological past. http://phys.org/news217603840.html Space & Earth Tue, 22 Feb 2011 13:30:58 EST news217603840 Geologists at the University of California, Riverside have found chemical evidence in 2.6-billion-year-old rocks that indicates that Earth's ancient oceans were oxygen-free and, surprisingly, contained abundant hydrogen sulfide in some areas. http://phys.org/news213899157.html Space & Earth Mon, 10 Jan 2011 16:30:01 EST news213899157 (PhysOrg.com) -- If the house seems dustier than it used to be, it may not be a reflection on your housekeeping skills. The amount of dust in the Earth's atmosphere has doubled over the last century, according to a new study; and the dramatic increase is influencing climate and ecology around the world. http://phys.org/news213468297.html Space & Earth Wed, 05 Jan 2011 16:49:11 EST news213468297 (PhysOrg.com) -- Toxic seas may have been responsible for delaying the evolution of life on Earth by 1 billion years, experts at Newcastle University have revealed. http://phys.org/news196337672.html Space & Earth Mon, 21 Jun 2010 11:15:23 EST news196337672 (PhysOrg.com) -- Numerous studies are documenting the growing effects of climate change, carbon dioxide, pollution and other human-related phenomena on the world’s oceans. But most of those have studied single, isolated sources of pollution and other influences. http://phys.org/news196007603.html Space & Earth Thu, 17 Jun 2010 15:50:02 EST news196007603 A research team led by biogeochemists at the University of California, Riverside has developed a detailed and dynamic three-dimensional model of Earth's early ocean chemistry that can significantly advance our understanding of how early animal life evolved on the planet. http://phys.org/news185118850.html Space & Earth Thu, 11 Feb 2010 14:00:09 EST news185118850 The chemical composition of our oceans is not constant but has varied significantly over geological time. In a study published this week in Science, researchers describe a novel method for reconstructing past ocean chemistry using calcium carbonate veins that precipitate from seawater-derived fluids in rocks beneath the seafloor. The research was led by scientists from the University of Southampton's School of Ocean and Earth Science (SOES) hosted at the National Oceanography Centre, Southampton (NOCS). http://phys.org/news184584541.html Space & Earth Fri, 05 Feb 2010 09:29:25 EST news184584541 (PhysOrg.com) -- Fish in U.S. waters from Cape Hatteras to the Canadian border have moved away from their traditional, long-time habitats over the past four decades because of fundamental changes in the regional ecosystem, according to a new report by NOAA researchers. http://phys.org/news170949257.html Space & Earth Mon, 31 Aug 2009 15:10:03 EST news170949257 (PhysOrg.com) -- “Geoengineering” experiments proposed to reduce global warming by blocking sunlight with atmosphere-injected particles may cool the world but still leave carbon dioxide levels dangerously high, Stanford scientists say. http://phys.org/news165847604.html Space & Earth Fri, 03 Jul 2009 13:47:15 EST news165847604 The collapse began rather unspectacularly. In 2005, when most of the millions of Pacific oysters in this tree-lined estuary failed to reproduce, Washington's shellfish growers largely shrugged it off. http://phys.org/news164811245.html Space & Earth Sun, 21 Jun 2009 15:30:01 EST news164811245 hanges in ocean chemistry -- a consequence of increased carbon dioxide (CO2) emissions from human industrial activity — could cause U.S. shellfish revenues to drop significantly in the next 50 years, according to a new study by researchers at the Woods Hole Oceanographic Institution. http://phys.org/news164455043.html Space & Earth Wed, 17 Jun 2009 11:20:03 EST news164455043 Ocean acidification, a direct result of increased CO2 emission, is set to change the Earth's marine ecosystems forever and may have a direct impact on our economy, resulting in substantial revenue declines and job losses. http://phys.org/news163058948.html Space & Earth Mon, 01 Jun 2009 07:26:46 EST news163058948