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. A new study has found that pollution from fine particles in the air – mainly the result of burning coal or volcanic eruptions – can shade corals from sunlight and cool the surrounding water resulting in reduced growth rates. http://phys.org/news284557786.html Space & Earth Sun, 07 Apr 2013 13:00:08 EST news284557786 Geoengineering, the use of human technologies to alter the Earth's climate system—such as injecting reflective particles into the upper atmosphere to scatter incoming sunlight back to space—has emerged as a potentially promising way to mitigate the impacts of climate change. But such efforts could present unforeseen new risks. That inherent tension, argue two professors from UCLA and Harvard, has thwarted both scientific advances and the development of an international framework for regulating and guiding geoengineering research. http://phys.org/news282490899.html Space & Earth Thu, 14 Mar 2013 14:42:03 EST news282490899 The Arctic sea ice is shrinking, both in extent and thickness. In addition to the manmade contribution to the sea ice loss, there are also natural factors contributing to this loss. In a new study from the Bjerknes Centre we focus on one of these factors: the ice export through the large gateway between Greenland and Svalbard—the Fram Strait. http://phys.org/news277370216.html Space & Earth Mon, 14 Jan 2013 07:17:04 EST news277370216 Glaciation events during the Neoproterozoic (524-to-1,000 million years ago) and Paleoproterozoic (1,600-to-2,500 million years ago) periods - events that spawned ice ages that persisted for millions of years at a time - may have seen glacier ice encircle the planet in a frosty planetary configuration known as a Snowball Earth. http://phys.org/news272050597.html Space & Earth Tue, 13 Nov 2012 17:50:01 EST news272050597 A University of Saskatchewan-led international research team has discovered that aerosols from relatively small volcanic eruptions can be boosted into the high atmosphere by weather systems such as monsoons, where they can affect global temperatures. The research appears in the July 6 issue of the journal Science. http://phys.org/news260718870.html Space & Earth Thu, 05 Jul 2012 14:55:41 EST news260718870 (Phys.org) -- The dramatic melt-off of Arctic sea ice due to climate change is hitting closer to home than millions of Americans might think. That's because melting Arctic sea ice can trigger a domino effect leading to increased odds of severe winter weather outbreaks in the Northern Hemisphere's middle latitudes -- think the "Snowmageddon" storm that hamstrung Washington, D.C., during February 2010. http://phys.org/news258179454.html Space & Earth Wed, 06 Jun 2012 05:31:43 EST news258179454 Researchers in Finland have discovered that climate change has impacted various regions of the Arctic tundra by helping increase the levels of vegetation. Their data suggest that this rise could potentially speed up global warming. The Finnish Meteorological Institute researchers used satellite observations to assess how vegetation impacts snowmelt and, in turn, the terrestrial albedo (i.e. reflectivity) in the Arctic tundra regions. The team gathered the necessary information over a 16-year period during the March to June months. http://phys.org/news253352366.html Space & Earth Wed, 11 Apr 2012 08:50:02 EST news253352366 Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even absent growing seasons, according to climate researchers, who compared tree-ring temperature reconstructions with model simulations of past temperature changes. http://phys.org/news247668656.html Space & Earth Sun, 05 Feb 2012 13:00:03 EST news247668656 Melting sea ice has been shown to be a major cause of warming in the Arctic according to a University of Melbourne, Australia study. http://phys.org/news191665797.html Space & Earth Wed, 28 Apr 2010 13:00:50 EST news191665797