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. (PhysOrg.com) -- Woods Hole Oceanographic Institution (WHOI) scientists have discovered that bacterial communication could have a significant impact on the planet's climate. http://phys.org/news237652548.html Space & Earth Wed, 12 Oct 2011 15:36:02 EST news237652548 The Baltic Sea emits more carbon dioxide than it can bind. Local variations have increased the exposure of the Bay of Bothnia. These are the results from a study of how carbon dioxide flows between the water of the Baltic Sea and the atmosphere, carried out by scientists at the University of Gothenburg, Sweden. http://phys.org/news237554103.html Space & Earth Tue, 11 Oct 2011 12:15:24 EST news237554103 An Illinois research team has succeeded in overcoming one major obstacle to a promising technology that simultaneously reduces atmospheric carbon dioxide and produces fuel. http://phys.org/news237138901.html Chemistry Thu, 06 Oct 2011 16:55:16 EST news237138901 At the end of the last Ice Age, atmospheric carbon dioxide levels rose rapidly as the planet warmed; scientists have long hypothesized that the source was CO2 released from the deep ocean. http://phys.org/news236864292.html Space & Earth Mon, 03 Oct 2011 12:38:23 EST news236864292 Until now, scientists were uncertain about how much and where in the world terrestrial carbon is being stored. In the July 14 issue of Science Express, scientists report that, between 1990 and 2007, the world's forests stored about 2.4 gigatons of carbon per year. http://phys.org/news230198653.html Space & Earth Mon, 18 Jul 2011 09:05:33 EST news230198653 (PhysOrg.com) -- How deep is the ocean's capacity to buffer against climate change? As one of the planet's largest single carbon absorbers, the ocean takes up roughly one-third of all human carbon emissions, reducing atmospheric carbon dioxide and its associated global changes. http://phys.org/news229516472.html Space & Earth Sun, 10 Jul 2011 13:00:01 EST news229516472 Geo-engineering schemes aimed at tackling global warming through artificial iron fertilisation of the oceans would significantly affect deep-sea ecosystems, according to research involving scientists from the United Kingdom's National Oceanography Centre (NOC) as well as former Ocean and Earth Science research students of the University of Southampton, which is based at the Centre. http://phys.org/news229169428.html Space & Earth Wed, 06 Jul 2011 11:10:43 EST news229169428 The question seems simple enough: What happens to the Earth's temperature when atmospheric carbon dioxide levels increase? The answer is elusive. However, clues are hidden in the fossil record. A new study by researchers from Syracuse and Yale universities provides a much clearer picture of the Earth's temperature approximately 50 million years ago when CO2 concentrations were higher than today. The results may shed light on what to expect in the future if CO2 levels keep rising. http://phys.org/news229098673.html Space & Earth Tue, 05 Jul 2011 15:31:48 EST news229098673 Two University of Minnesota Department of Earth Sciences researchers have developed an innovative approach to tapping heat beneath the Earth's surface. The method is expected to not only produce renewable electricity far more efficiently than conventional geothermal systems, but also help reduce atmospheric carbon dioxide (CO2) -- dealing a one-two punch against climate change. http://phys.org/news226571821.html Space & Earth Mon, 06 Jun 2011 09:37:17 EST news226571821 A new study concludes that models may be predicting releases of atmospheric carbon dioxide that are either too high or too low, depending on the region, because they don't adequately reflect variable temperatures that can affect the amount of carbon released from soil. http://phys.org/news226239312.html Space & Earth Thu, 02 Jun 2011 13:15:58 EST news226239312 The global spread of native trees and shrubs into open grazing land and abandoned farms can bring unexpected environmental and economic benefits, a major new international study has found. http://phys.org/news226142235.html Biology Wed, 01 Jun 2011 10:18:19 EST news226142235 The cactus, stalwart of the desert, has quite a story to tell about the evolution of plant communities found the world over. http://phys.org/news223640343.html Biology Tue, 03 May 2011 12:10:03 EST news223640343 (PhysOrg.com) -- The Earth may be able to recover from rising carbon dioxide emissions faster than previously thought, according to evidence from a prehistoric event analyzed by a Purdue University-led team. http://phys.org/news222614717.html Space & Earth Thu, 21 Apr 2011 14:25:38 EST news222614717 (PhysOrg.com) -- By studying fossilized mollusks from some 3.5 million years ago, UCLA geoscientists and colleagues have been able to construct an ancient climate record that holds clues about the long-term effects of Earth's current levels of atmospheric carbon dioxide, a key contributor to global climate change. http://phys.org/news221461321.html Space & Earth Fri, 08 Apr 2011 06:02:42 EST news221461321 Simpson Tacoma Kraft would seem like one of the greener power plants. It boils water by burning sawdust, bark and wood shavings from saw mills and pulp mills, funneling the resulting high-pressure steam into a turbine to generate electricity. http://phys.org/news220552784.html Space & Earth Mon, 28 Mar 2011 17:40:36 EST news220552784 Recent climate modeling has shown that reducing the concentration of carbon dioxide in the atmosphere would give the Earth a wetter climate in the short term. New research from Carnegie Global Ecology scientists Long Cao and Ken Caldeira offers a novel explanation for why climates are wetter when atmospheric carbon dioxide (CO2) concentrations are decreasing. Their findings, published online today by Geophysical Research Letters, show that cutting carbon dioxide concentrations could help prevent droughts caused by global warming. http://phys.org/news220184623.html Space & Earth Thu, 24 Mar 2011 11:24:12 EST news220184623 University of Alberta researchers have determined that the influence of northern peatlands on the prehistorical record of climate change has been over estimated, but the vast northern wetlands must still be watched closely as the planet grapples with its current global warming trend. http://phys.org/news219409082.html Space & Earth Tue, 15 Mar 2011 11:59:09 EST news219409082 (PhysOrg.com) -- Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much less dense than it used to be. http://phys.org/news218907987.html Space & Earth Wed, 09 Mar 2011 15:46:57 EST news218907987 Genghis Khan and his Mongol hordes had an impact on the global carbon cycle as big as today's annual demand for gasoline. The Black Death, on the other hand, came and went too quickly for it to cause much of a blip in the global carbon budget. Dwarfing both of these events, however, has been the historical trend towards increasing deforestation, which over centuries has released vast amounts of carbon dioxide into the atmosphere, as crop and pasture lands expanded to feed growing human populations. Even Genghis Kahn couldn't stop it for long. http://phys.org/news214750680.html Space & Earth Thu, 20 Jan 2011 12:59:34 EST news214750680 (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) -- A new NASA computer modeling effort has found that additional growth of plants and trees in a world with doubled atmospheric carbon dioxide levels would create a new negative feedback – a cooling effect – in the Earth's climate system that could work to reduce future global warming. http://phys.org/news210964986.html Space & Earth Tue, 07 Dec 2010 17:23:21 EST news210964986 (AP) -- Like the warming atmosphere above, a once-taboo idea hangs over the slow, frustrating U.N. talks to curb climate change: the idea to tinker with the atmosphere or the planet itself, pollute the skies to ward off the sun, fill the oceans with gas-eating plankton, do whatever it takes. http://phys.org/news210762601.html Space & Earth Sun, 05 Dec 2010 09:10:15 EST news210762601 Climate models that project future atmospheric carbon dioxide concentrations should include a coupled nitrogen cycle, a team of researchers led by Oak Ridge National Laboratory has concluded. http://phys.org/news209120991.html Space & Earth Tue, 16 Nov 2010 09:10:18 EST news209120991 (PhysOrg.com) -- A new analysis of fossilized grass-pollen grains deposited on ancient European lake and sea bottoms 16-35 million years ago reveals that C4 grasses evolved earlier than previously thought. This new evidence casts doubt on the widely-held belief that the rise of this incredibly productive group of plants was driven by a large drop in atmospheric carbon dioxide concentrations during the Oligocene epoch. http://phys.org/news209059558.html Space & Earth Mon, 15 Nov 2010 16:40:01 EST news209059558 Variations in atmosphere carbon dioxide around 40 million years ago were tightly coupled to changes in global temperature, according to new findings published in the journal Science. The study was led by scientists at Utrecht University, working with colleagues at the NIOZ Royal Netherlands Institute for Sea Research and the University of Southampton. http://phys.org/news209037998.html Space & Earth Mon, 15 Nov 2010 10:07:47 EST news209037998 The steamiest places on the planet are getting warmer. Conservative estimates suggest that tropical areas can expect temperature increases of 3 degrees Celsius by the end of this century. Does global warming spell doom for rainforests? Maybe not. Carlos Jaramillo, staff scientist at the Smithsonian Tropical Research Institute, and colleagues report in the journal Science that nearly 60 million years ago rainforests prospered at temperatures that were 3-5 degrees higher and at atmospheric carbon dioxide levels 2.5 times today's levels. http://phys.org/news208710337.html Space & Earth Thu, 11 Nov 2010 15:05:59 EST news208710337 Variations in atmosphere carbon dioxide around 40 million years ago were tightly coupled to changes in global temperature, according to new findings published in the journal Science. The study was led by scientists at Utrecht University, working with colleagues at the NIOZ Royal Netherlands Institute for Sea Research and the University of Southampton. http://phys.org/news208622322.html Space & Earth Wed, 10 Nov 2010 14:39:02 EST news208622322 (PhysOrg.com) -- A blade of grass destined to be converted into biofuel may join energy efficiency and other big-ticket strategies in the effort to reduce atmospheric carbon -- but not in the way that you might think. http://phys.org/news207321859.html Biology Tue, 26 Oct 2010 14:30:20 EST news207321859 The food industry generates a lot of waste products, but one of these, eggshells, could help combat climate change, according to research published in the International Journal of Global Warming this month. http://phys.org/news207310482.html Space & Earth Tue, 26 Oct 2010 11:40:01 EST news207310482 Crops responded positively to future levels of atmospheric carbon dioxide (CO2), but soil tillage practices had little effect on this response, according to a U.S. Department of Agriculture (USDA) study. http://phys.org/news203852397.html Space & Earth Thu, 16 Sep 2010 10:40:24 EST news203852397