Categories Tone Reach Cracking the ice code ...... What happened the last time a vegetated Earth shifted from an extremely cold climate to desert-like conditions? And what does it tell us about climate change today? John Isbell is on a quest to coax that information from the geology of the southernmost portions of the Earth. It won't be easy, because the last transition from "icehouse to greenhouse" occurred between 335 and 290 million years ......
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3 Articles Heat-related deaths in Manhattan projected to rise ...... offset heat-related deaths by cutting cold-related mortalitybut even so, annual net temperature-related deaths might go up a third. The study, published this week in the journal Nature Climate Change , was done by a team at Columbia University's Earth Institute and the Mailman School of Public Health. Studies of other cities have already projected adverse health effects from rising ......
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5 Articles Sea level influenced tropical climate during the last ice age ...... Scientists look at past climates to learn about climate change and the ability to simulate it with computer models. One region that has received a great deal of attention is the Indo-Pacific warm pool, the vast pool of warm water stretching along the equator from Africa to the western Pacific Ocean. In a new study, Pedro DiNezio of the International Pacific Research Center, University of ......
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2 Articles Front-row seats to climate change ...... Public release date: 17-May-2013 [ | E-mail | Share ] Contact: hannah hamilton 703-648-4356 United States Geological Survey Front-row seats to climate change Amphibians and climate change By day, insects provide the white noise of the South, but the night belongs to the amphibians. In a typical year, the Southern air hangs heavy from the humidity and the sounds of wildlife. The ......
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3 Articles LLNL scientist finds topography of Eastern Seaboard muddles ancient sea level changes | Science Codex ...... and flooding surface of the U.S. Atlantic Coastal Plain are the direct result of fluctuations in topography in the region and could have implications on understanding long-term climate change , according to a new study. Sedimentary rocks from Virginia through Florida show marine flooding during the mid-Pliocene Epoch, which correlates to approximately 4 million years ago. Several wave-c ......
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Methane emissions higher than thought across much of U.S. ...... U.S. are higher than currently known, confirming what other more local studies have found. Their research is published in the journal Atmospheric Environment . Methane is a potent greenhouse gas , stronger than carbon dioxide on a 20-year timescale, according to the Intergovernmental Panel on Climate Change, though on a century timescale, carbon dioxide is far stronger. "This research ......
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4 Articles Canada must addess real climate-change challenge ...... 416-978-4352 University of Toronto Canada must addess real climate-change challenge Agreeing on provincial share of overall reduction target To reach Canada's goal of reducing greenhouse gas (GHG) emissions to 17 per cent below the 2005 level by the year 2020, federal and provincial governments, led by the Prime Minister and provincial premiers, must reach agreement on what portion of ......
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3 Articles Study reveals scientific consensus on anthropogenic climate change | Science Codex ...... A comprehensive analysis of peer-reviewed articles on the topic of global warming and climate change has revealed an overwhelming consensus among scientists that recent warming is human-caused. The study is the most comprehensive yet and identified 4000 summaries, otherwise known as abstracts, from papers published in the past 21 years that stated a position on the cause of recent global ......
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2 Articles 'Fish thermometer' reveals long-standing, global impact of climate change | Science Codex ...... Climate change has been impacting global fisheries for the past four decades by driving species towards cooler, deeper waters, according to University of British Columbia scientists. In a Nature study published this week, UBC researchers used temperature preferences of fish and other marine species as a sort of "thermometer" to assess effects of climate change on the world's oceans between 19 ......
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2 Articles Urbanization and surface warming in eastern China ...... previous studies indicated that urbanization has little impact on surface warming. However, recent investigations have suggested that urbanization plays an essential role in regional climate change . China has been experiencing intensive urbanization since the 1980s. Due to close ties in social and economic aspects, single cities have expanded to form distinctive city clusters in eastern China, ......
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3 Articles Energy supply from hydropower projects depends on rainforest conservation | Science Codex ...... to the 'green electricity' produced by hydropower to meet the demands of their growing economies," says Nepstad. While not without controversy, hydropower usually produces fewer greenhouse gas es than many other energy sources. Because of its proven technology and storage capacity, it is also currently deemed more reliable and feasible than large-scale wind and solar projects. Over 45 new ......
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GBIF enables global forecast of climate impacts on species | Science Codex ...... Copenhagen, Denmark Climate change could dramatically reduce the geographic ranges of thousands of common plant and animal species during this century, according to research using data made freely available online through the Global Biodiversity Information Facility (GBIF). Research published today in the journal Nature Climate Change looked at nearly 50,000 globally widespread and common ......
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Setting the standard for sustainable bioenergy crops ...... have to buy credits within the European Emissions Trading System. Although the requirement has been postponed until January 2014, the aviation sector is actively seeking ways to reduce greenhouse gas emissions through biofuels. The challenge is not only how to convert cellulosics into jet fuel, but also how to certify that they are grown, refined, and distributed in a sustainable manner," Endres ......
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6 Articles The effect of climate change on iceberg production by Greenland glaciers | Science Codex ...... While the impact of climate change on the surface of the Greenland ice sheet has been widely studied, a clear understanding of the key process of iceberg production has eluded researchers for many years. Published in Nature this week, a new study presents a sophisticated computer model that provides a fresh insight into the impact of climate change on the production of icebergs by Greenland ......
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2 Articles Mechanism converts natural gas to energy faster, capture CO2 ...... Chemical engineering researchers have identified a new mechanism to convert natural gas into energy up to 70 times faster, while effectively capturing the greenhouse gas carbon dioxide (CO 2 ). "This could make power generation from natural gas both cleaner and more efficient," says Fanxing Li, co-author of a paper on the research and an assistant professor of chemical and biomolecular ......
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3 Articles Urban grass might be greener, but that doesn't mean it's 'greener' | Science Codex ...... your lawn green might not be conducive to "going green." Amy Townsend-Small, a UC assistant professor of geology and geography, will present her research, "Carbon Sequestration and Greenhouse Gas Emissions in Urban Ecosystems," at the Association of American Geographers annual meeting to be held April 9-13 in Los Angeles. The interdisciplinary forum is attended by more than 7,000 scientists ......
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As climate changes, boreal forests to shift north and relinquish more carbon than expected ...... swaths of Canada, Europe, and Russia in coniferous trees and wetlands. This vegetation stores vast amounts of carbon, keeping it out of the atmosphere where it can contribute to climate change . Scientists use incredibly complex computer simulations called Earth system models to predict the interactions between climate change and ecosystems such as boreal forests. These models show that ......
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4 Articles More hurricanes for Hawaii? | Science Codex ...... shows that Hawaii could see a two-to-three-fold increase in tropical cyclones by the last quarter of this century. The study, which appears in the May 5, 2013, online issue of Nature Climate Change , though, leaves open the question, how worried Island residents should get. "Computer models run with global warming scenarios generally project a decrease in tropical cyclones worldwide. This, ......
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2 Articles NASA Study Projects Warming-Driven Changes In Global Rainfall - Yahoo! News ...... WASHINGTON, May 3, 2013 /PRNewswire-USNewswire/ --A NASA-led modeling study provides new evidence that global warming may increase the risk for extreme rainfall and drought. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The study shows for the first time how rising carbon dioxide concentrations could affect the entire range of rainfall types on Earth. Analysis of computer ......
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12 Articles The Politics Of Climate Change - Science News - redOrbit ...... U.S. residents who believe in the scientific consensus on global warming are more likely to support government action to curb emissions, regardless of whether they are Republican or Democrat, according to a study led by a Michigan State University sociologist. However, a political divide remains on the existence of climate change despite the fact that the vast majority of scientists believe it ......
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2 Articles Analysis of 2,000 years of climate records finds global cooling trend ended in the 19th century | Science Codex ...... that the 20th century ranks as the warmest or nearly the warmest century on all of the continents, except Antarctica. Africa had insufficient data to be included in the analysis. Global warming that has occurred since the end of the 19th century reversed a persistent long-term global cooling trend, say the researchers. A consortium of 78 authors from 24 countries, some of them supported ......
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Futurity.org Snail fossils show when Earth turned icy ...... by up to 5 degrees Celsius (9 degrees Fahrenheit). But studies of how this drastic change affected temperatures on land have had mixed results. Some show no appreciable terrestrial climate change ; others find cooling of up to 8 C (14.4 F) and large changes in seasonality. For a new study, researchers used a geochemical technique to analyze heavy isotopes of carbon and oxygen in fossil ......
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2 Articles Insights into deadly coral bleaching could help preserve reefs | e! Science News ...... Coral reefs are stressed the world over and could be in mortal danger because of climate change . But why do some corals die and others not, even when exposed to the same environmental conditions? An interdisciplinary research team from Northwestern University and The Field Museum of Natural History has a surprising answer: The corals themselves play a role in their susceptibility to deadly ......
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2 Articles Special E. coli bacteria produce diesel on demand ...... project from the outset. Replacing conventional diesel with a carbon neutral biofuel in commercial volumes would be a tremendous step towards meeting our target of an 80% reduction in greenhouse gas emissions by 2050. Global demand for energy is rising and a fuel that is independent of both global oil price fluctuations and political instability is an increasingly attractive prospect." E. ......
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2 Articles Regional Insights Set Latest Study of Climate History Apart ...... changes to natural or human-caused factors, Kaufman said the finding of a long-term global cooling trend that ended late in the 19th century is further evidence that increased greenhouse gas ses have had an influence in later years. "The pre-industrial trend was likely caused by natural factors that continued to operate through the 20th century, making 20th century warming more ......
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2 Articles Earth's current warmth not seen in the last 1,400 years or more, says study | Science Codex ...... Fueled by industrial greenhouse gas emissions, Earth's climate warmed more between 1971 and 2000 than during any other three-decade interval in the last 1,400 years, according to new regional temperature reconstructions covering all seven continents. This period of manmade global warming, which continues today, reversed a natural cooling trend that lasted several hundred years, according to ......
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Massive amounts of charcoal enter the worlds' oceans | Science Codex ...... better scientists can understand the processes and the environmental factors controlling it, the better the chance of developing strategies for carbon sequestration and help mitigate climate change . ......
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Nitrogen has key role in estimating CO2 emissions from land use change | Science Codex ...... Cabot Institute published their findings in the journal Global Change Biology . The findings will be a part of the upcoming Fifth Assessment Report from the Intergovernmental Panel on Climate Change . "One nutrient can make a huge impact on the carbon cycle and net emissions of the greenhouse gas carbon dioxide," said study leader Atul Jain, a professor of atmospheric sciences at the U. of I. " ......
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This month in ecology: Oysters, big rivers, biofuels ...... for fish and fisheries. In some of the drier western states, farmers are drawing down groundwater resources to irrigate corn for biofuel. Cornfields are usually tilled, which releases greenhouse gas ses stored in soil, loses topsoil to erosion, and loses water to evaporation. Much hope has been placed in the "cellulosic" biofuels for their superior environmental benefits. Made from grasses, ......
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3 Articles Cutting specific atmospheric pollutants would slow sea level rise | Science Codex ...... cut carbon dioxide emissions," says Aixue Hu of the National Center for Atmospheric Research (NCAR) in Boulder, Colo., first author of a paper published today in the journal Nature Climate Change . "Society can significantly reduce the threat to coastal cities if it moves quickly on a handful of pollutants." The research was funded by the National Science Foundation (NSF) and the U.S. ......
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