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Contents contributed and discussions participated by D'coda Dcoda

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Global Tracking of Small Animals Gains Momentum - 0 views

  • ovember 2011 > Pennisi, 334 (6059): 1042 OAS_AD('Top'); Sciencewww.sciencemag.org Prev | Table of Contents | Next Science 25 November 2011: Vol. 334 no. 6059 p. 1042 DOI: 10.1126/science.334.6059.1042 News & Analysis Animal EcologyGlobal Tracking of Small Animals Gains Momentum Elizabeth Pennisi Summary An ecologist has developed a new space-based system to track animals too small to be monitored globally with current instruments. Next month, he and his colleagues will begin testing whether a new animal tag can eventually communicate with the International Space Station. He has also been promised $2.3 million to start to set up an antenna
  • An ecologist has developed a new space-based system to track animals too small to be monitored globally with current instruments. Next month, he and his colleagues will begin testing whether a new animal tag can eventually communicate with the International Space Station. He has also been promised $2.3 million to start to set up an antenna on the space station for ICARUS, as the project is called. If all goes well, he says, by the end of 2014, the antenna will be tracking about 1000 small animals, with the potential to follow thousands more, enabling him and collaborators to assess how the creatures spend their lives and where they die.
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Climate May Be Less Sensitive To CO2 Than Previously Thought [25Nov11] - 0 views

  • "A new study suggests that the effects of rising levels of carbon dioxide on temperature may be less significant than previously thought. 'The new models predict that given a doubling in CO2 levels from pre-industrial levels, the Earth's surface temperatures will rise by 1.7 to 2.6 degrees C. That is a much tighter range than suggested by the Intergovernmental Panel on Climate Change's 2007 report, which suggested a rise of between 2 to 4.5 degrees C."
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Pakistan facing 'unimaginable catastrophe' after second year of floods [09Nov11] - 0 views

  • More than nine million flood victims in Pakistan face an "unimaginable catastrophe" of disease and malnutrition due to a massive shortfall in emergency funding, aid agencies have warned.
  • This year's flooding came as millions were still trying to recover from a similar disaster last year, described by the UN as the worst in its history. Shaheen Chughtai, a humanitarian policy adviser at Oxfam, said: "Last year it was very clear that this was an extraordinary disaster. It was a once in a century flood. The fact we have had floods again this year in Pakistan means that in terms of media news agendas it looks like a continuation of a familiar story.
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Report: EPA cut corners on climate finding [28Sep11] - 0 views

  • The Obama administration cut corners before concluding that climate-change pollution can endanger human health, a key finding underpinning costly new regulations, an internal government watchdog said Wednesday.Regulators and the White House disagreed with the finding, and the report itself did not question the science behind the administration's conclusions. Still, the decision by the Environmental Protection Agency's inspector general is sure to encourage industry lawyers, global warming doubters in Congress and elsewhere, and Republicans taking aim at the agency for what they view as an onslaught of job-killing environmental regulations.
  • The report said EPA should have followed a more extensive review process for a technical paper supporting its determination that greenhouse gases pose dangers to human health and welfare, a finding that ultimately compelled it to issue controversial and expensive regulations to control greenhouse gases for the first time."While it may be debatable what impact, if any, this had on EPA's finding, it is clear that EPA did not follow all the required steps," Inspector General Arthur A. Elkins, Jr. said in a statement Wednesday.
  • The EPA and White House said the greenhouse gas document did not require more independent scrutiny because the scientific evidence it was based on already had been thoroughly reviewed. The agency did have the document vetted by 12 experts, although one of those worked for EPA."The report importantly does not question or even address the science used or the conclusions reached," the EPA said in a statement. The environmental agency said its work "followed all appropriate guidance," a conclusion supported by the White House budget official who wrote the peer review guidelines in 2005.
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  • EPA Administrator Lisa Jackson has said repeatedly that her conclusions were based on the underlying science, not the agency's summary of it.The greenhouse gas decision — which marked a reversal from the Bush administration — was announced in December 2009, a week before President Barack Obama headed to international negotiations in Denmark on a new treaty to curb global warming. At the time, progress was stalled in Congress on a new law to reduce emissions in the United States.In 2010, a survey of more than 1,000 of the world's most cited and published climate scientists found that 97 percent believe climate change is very likely caused by the burning of fossil fuels.
  • But by highlighting what it calls "procedural deviations," the report provides ammunition to Republicans and industry lawyers fighting the Obama administration over its decision to use the 40-year-old Clean Air Act to fight global warming. While the Supreme Court said in 2007 that the act could be used to control greenhouse gases, the Republican-controlled House has passed legislation that would change that. The bill has so far been stymied by the Democratic-controlled Senate.Sen. James Inhofe, the Oklahoma Republican who requested the investigation and one of Congress' most vocal climate skeptics, said Wednesday the report confirmed that "the very foundation of President Obama's job-destroying agenda was rushed, biased and flawed."
  • Wyoming Sen. John Barrasso, another critic of EPA regulations, said the agency sacrificed scientific protocol for "political expediency."Environmentalists, meanwhile, said the inspector general was nitpicking at the public's expense. The investigation cost nearly $300,000.
  • "The process matters, but the science matters more," said Francesca Grifo, a senior scientist with the Union of Concerned Scientists. "Nothing in this report questions the agency's ability to move forward with global warming emissions rules."A prominent environmental attorney and Columbia University law professor questioned what effect, if any, the report would have on global warming policy or the more than a dozen lawsuits filed by manufacturers, refiners, the state of Texas and others challenging the EPA's finding.
  • Michael Gerrard said that while lawyers and politicians would try to use the report to fight EPA regulations, the scientific case for global warming has only gotten stronger.The worst-case scenario for the agency is that a federal judge sends the document back for reworking, putting its global warming regulations on cars, trucks, power plants and refineries in limbo.
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Sickness,Death, Environmental Impacts of Dispersants - 0 views

  • The report, The Chaos Of Clean-Up, was prepared in response to widespread public concern among Gulf Coast communities about the safety of chemicals, known as dispersants, that were poured into the Gulf of Mexico to disperse oil during the Deepwater Horizon disaster. This report presents findings from a literature review of scientific research on each of 57 chemical ingredients that are found in dispersants that were eligible for use at the time of the Deepwater Horizon disaster. The ingredients and formulas for various dispersants on the market typically are not available, and it is not fully known which chemical ingredients among the 57 are found in which dispersant.
  • The review demonstrates the wide range of potential impacts from exposure to the chemicals found in dispersants. From carcinogens, to endocrine disruptors, to chemicals that are toxic to aquatic organisms, some of the ingredients in oil dispersants are indeed potential hazards. For instance, of the 57 ingredients, 5 chemicals are associated with cancer 33 chemicals are associated with skin irritation, from rashes to burns 33 chemicals are linked to eye irritation 11 chemicals are suspected or potential respiratory toxins or irritants 10 chemicals are suspected kidney toxins.
  • As for potential effects on the marine environment, 8 chemicals are suspected or known to be toxic to aquatic organisms 5 chemicals are suspected to have a moderate acute toxicity to fish Clearly, some of the chemical ingredients are more toxic than others, and some dispersants are more toxic in particular environments. The widely-varying toxicity of different dispersants underscores the importance of full disclosure and proper selection of dispersants for use in oil spill response.
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  • While revealing some of the potential hazards of dispersants, the literature review also highlights the extent of our current lack of knowledge about dispersants and their impacts. Ultimately, the absence of thorough scientific research on dispersants and the chemicals that comprise dispersants, as well as the lack of public disclosure of each dispersant's ingredients and formulation, hinders any effort to understand the full impacts of dispersant use. These findings call for more research, greater disclosure of the information that is known, comprehensive toxicity testing, the establishment of safety criteria for dispersants, and careful selection of the least toxic dispersants for application in oil spill response. Download Complete Report: The Chaos Of Clean-Up
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    An executive summary on the dispersants used in the BP oil spill
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New, convincing evidence indicates global warming is caused by cosmic rays and the sun ... - 0 views

  • The science is now all-but-settled on global warming, convincing new evidence demonstrates, but Al Gore, the IPCC and other global warming doomsayers won’t be celebrating. The new findings point to cosmic rays and the sun — not human activities — as the dominant controller of climate on Earth.
  • The research, published with little fanfare this week in the prestigious journal Nature, comes from über-prestigious CERN, the European Organization for Nuclear Research, one of the world’s largest centres for scientific research involving 60 countries and 8,000 scientists at more than 600 universities and national laboratories. CERN is the organization that invented the World Wide Web, that built the multi-billion dollar Large Hadron Collider, and that has now built a pristinely clean stainless steel chamber that precisely recreated the Earth’s atmosphere.
  • The hypothesis that cosmic rays and the sun hold the key to the global warming debate has been Enemy No. 1 to the global warming establishment ever since it was first proposed by two scientists from the Danish Space Research Institute, at a 1996 scientific conference in the U.K. Within one day, the chairman of the Intergovernmental Panel on Climate Change, Bert Bolin, denounced the theory, saying, “I find the move from this pair scientifically extremely naive and irresponsible.” He then set about discrediting the theory, any journalist that gave the theory cre dence, and most of all the Danes presenting the theory — they soon found themselves vilified, marginalized and starved of funding, despite their impeccable scientific credentials.
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  • In this chamber, 63 CERN scientists from 17 European and American institutes have done what global warming doomsayers said could never be done — demonstrate that cosmic rays promote the formation of molecules that in Earth’s atmosphere can grow and seed clouds, the cloudier and thus cooler it will be. Because the sun’s magnetic field controls how many cosmic rays reach Earth’s atmosphere (the stronger the sun’s magnetic field, the more it shields Earth from incoming cosmic rays from space), the sun determines the temperature on Earth.
  • The mobilization to rally the press against the Danes worked brilliantly, with one notable exception. Nigel Calder, a former editor of The New Scientist who attended that 1996 conference, would not be cowed. Himself a physicist, Mr. Calder became convinced of the merits of the argument and a year later, following a lecture he gave at a CERN conference, so too did Jasper Kirkby, a CERN scientist in attendance. Mr. Kirkby then convinced the CERN bureaucracy of the theory’s importance and developed a plan to create a cloud chamber — he called it CLOUD, for “Cosmics Leaving OUtdoor Droplets.”
  • But Mr. Kirkby made the same tactical error that the Danes had — not realizing how politicized the global warming issue was, he candidly shared his views with the scientific community.
  • “The theory will probably be able to account for somewhere between a half and the whole of the increase in the Earth’s temperature that we have seen in the last century,” Mr. Kirkby told the scientific press in 1998, explaining that global warming may be part of a natural cycle in the Earth’s temperature.
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Phoenix engulfed by 3rd giant dust storm in less than two months [19Aug11] - 0 views

  • A giant wall of dust rolled through the Phoenix area on Thursday for the third time since early July — turning the sky brown, creating dangerous driving conditions and delaying some airline flights. The dust storm, also known as a haboob in Arabic and around Arizona, swept through Pinal County and headed northeast, reaching Phoenix at about 6 p.m. Some incoming and departing flights at Phoenix Sky Harbor International Airport were temporarily delayed because of the storm, according to airport officials who couldn’t immediately provide exact numbers. Take-offs and landing began again at about 6:50 p.m. National Weather Service meteorologists said a powerful thunderstorm packing winds of up to 60 mph hit Pinal County and pushed the dust storm toward Arizona’s most populous county. There were several reports of downed poles and Salt River Project officials said 3,500 of its customers were without electricity, mostly in the Queen Creek area southeast of Phoenix. There were no immediate reports of any weather-related auto accidents. It was the third major dust storm to hit the Phoenix metro area since last month. A haboob on July 5 brought a mile-high wall of dust that halted airline flights, knocked out power for 10,000 people and covered everything in its path with a thick sheet of dust. Another dust storm hit July 18 reaching heights of 3,000 to 4,000 feet, delaying flights and cutting off power for more than 2,000 people in the Phoenix metro area. Weather officials say haboobs only happen in Arizona, the Sahara desert and parts of the Middle East because of dry conditions and large amounts of sand. –The Chron
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Climategate part 2? A worrying conflict of interest [17Jun11] - 0 views

  • a press release for the report which suggested that renewable sources alone, without nuclear power, could provide 77 per cent of the world’s energy supply by 2050.
  • The supporting documents, which weren’t released until over a month later, reveal that this claim was based on a large real-terms decline in worldwide energy consumption over the next 40 years (highly unrealistic as India and China grow their economies).
  • Now it appears that there are more apparent conflicts of interest in the IPCC’s energy report
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  • eter Bosshard, Policy Director of the campaign group International Rivers, contacted me to point out that the scenario for 77 per cent renewables included (against standard practice) large hydropower projects among the technologies to be promoted.
  • Most environmentalists believe that more large scale dams are not the right approach to generating electricity in a sustainable way.
  • While water is a renewable resource, the ecosystems that are destroyed by hydropower projects are not. Not least due to dam building, rivers, lakes and wetlands suffer from a higher rate of species extinction than any other major ecosystem.
  • Not only this but because of the decomposing organic matter found in reservoirs, dams emit greenhouse gases such as methane and CO2. In some cases, it is claimed, these emissions can be higher than those of thermal power projects with the same electricity output.
  • Ivan Lima of Brazil’s National Institute for Space Research  estimate that the total methane emissions from large dams at 104 million tons per year.
  • Methane is a particularly potent greenhouse gas, and Lima’s figure amounts to more than 4 per cent of the total warming impact of human activities – roughly equal to the climate impact of the global aviation sector
  • So why is the IPCC contravening international standard practice to promote hydropower?
  • Well this may be total coincidence but in addition to several independent scientists, the IPCC selected a number of authors to write the section of hydropower who have a vested interest in growing the sector.
  • Of the nine lead authors there are representatives of two of the world’s largest hydropower developers, a hydropower consultancy, and three agencies promoting hydropower at the national level.
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    The UN's Intergovernmental Panel on Climate Change has been compromised again.
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Climate Science Research Review Answers Climate Change Questions [17Jun11] - 0 views

  • With wildfires, floods, tornadoes, and other dramatic weather events making front page news around the world, many people are asking questions about the signs and impacts of a changing climate. Climate Science is the World Resources Institute’s periodic review of the state of play of the science of climate change. With summaries and explanations of recent peer-reviewed research from a host of scientific journals, Climate Science is a window into what scientists are discovering about how climate change affects the living things and complex systems of our planet.
  • The latest edition, Climate Science 2009-2010 will be released this summer. In the meantime, we have assembled a preview of some of the research covered in the report. Take a look at our slideshow detailing the huge variety of impacts we are already seeing from warming global temperatures, including insights into sea-level rise, human migration, weather extremes, and the shrinking habitats of wildlife. Then, use our interactive map to learn more about the regional consequences of climate change around the United States
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  • Climate change impacts around the world
  • all of WRI’s work on solutions to the climate challenge.
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Sunspot Drop Won't Cause Global Cooling [16Jun11] - 0 views

  • News that solar activity might fizzle for a few decades has prompted talk of a new “Little Ice Age,” even a quick fix for global warming. But that’s just not going to happen.
  • The cooling impact of the last prolonged solar lull “was probably only a couple tenths of a degree Celsius,” said climatologist Michael Mann of Penn State University. “It’s a tiny blip on the radar screen if you’re looking at the driving factors behind climate change.”
  • The cooling impact of the last prolonged solar lull “was probably only a couple tenths of a degree Celsius,” said climatologist Michael Mann of Penn State University. “It’s a tiny blip on the radar screen if you’re looking at the driving factors behind climate change.”
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  • The possibility of imminent solar dormancy was raised by reports from the ongoing American Astronomical Society meeting of fading sunspots and dips in the sun’s magnetic patterns. Those are considered portents of solar inactivity, suggesting that the next solar minimum — a natural downturn in activity — would be especially pronounced, perhaps lasting for decades.
  • When that last happened, between the mid-17th and early 18th centuries, northern Europe experienced a period of unusually cold weather. Known as the Maunder Minimum, or more conversationally as the Little Ice Age, it’s a period historicized by accounts of ice skating on the Thames and seasonal inns built on Baltic Sea ice.
  • In fact, the meaning of the latest sunspot reports is still being debated, as Andrew Revkin at Dot Earth has chronicled. But even if they really do portend a decades-long solar lull, studies already point to a minimal effect on climate
  • Most Little Ice Age cooling appears to have been the result of coincidentally high volcanic activity that cloaked Earth in sunlight-blocking soot. As for the sun, a study published in 2001 in Science found that reduced solar activity produced a cooling effect of about 0.5 degrees Fahrenheit. In other estimates, the cooling is even more insignificant.
  • More recently, in a 2010 Geophysical Research Letters study, Georg Fuelner and Stefan Rahmstorf of the Potsdam Institute for Climate Impact Research asked the question directly: What would happen if Earth experienced another 70-year-long solar minimum?
  • The answer can be seen in the image at the top of this post, which estimates the temperature difference between a solar minimum future under “middle-of-the-road” climate scenarios and the Maunder Minimum. In a nutshell: It’s going to be much, much hotter in the future, solar minimum or not.
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Scientists See More Deadly Weather, but Dispute the Cause [16Jun11] - 0 views

  • The United States experienced some of the most extreme weather events in its history this spring, including deadly outbreaks of tornadoes, near-record flooding, drought and wildfires
  • Damages from these disasters have already passed $32 billion, and the hurricane season, which is just beginning, is projected to be above average, according to the National Oceanic and Atmospheric Administration.
  • Government scientists said Wednesday that the frequency of extreme weather has increased over the past two decades, in part as a result of global warming caused by the accumulation of carbon dioxide in the atmosphere
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  • But they were careful not to blame humans for this year’s rash of deadly events, saying that in some ways weather patterns were returning to those seen at the beginning of the last century.
  • “Looking at long-term patterns since 1980, indeed, extreme climatological and meteorological events have increased,” said Thomas R. Karl, director of NOAA’s National Climatic Data Center. “But in the early part of the 20th century, there was also a tendency for more extreme events followed by a quiet couple of decades.”
  • Presenting a new NOAA report on 2011 extreme weather, Dr. Karl said that extremes of precipitation have increased as the planet warms and more water evaporates from the oceans. He also said models suggest that as carbon dioxide builds up in the atmosphere and heats the planet, droughts will increase in frequency and intensity.
  • “But it is difficult and unlikely to discern a human fingerprint, if there is one, on the drought record of the United States,” he said.
  • So far this year, there have been nearly 1,400 preliminary tornado reports nationwide; those reports will most likely be whittled down to about 900 confirmed tornadoes, the second-highest annual total recorded in modern times. The record is 1,011 confirmed tornadoes in 2008.
  • The year also is on track to be one of the deadliest, with 536 fatalities so far from tornadoes, placing 2011 in sixth place in United States history and the deadliest since 1936, NOAA reported.
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Radioactive cesium detected from 2 whales+ [16Jun11] - 0 views

  • Radioactive cesium was detected from two minke whales caught off the coast of Kushiro, Hokkaido, in Japan's so-called research whaling, a whalers' association said Tuesday.
  • While the level of the radioactive material remained below the temporarily set upper limit, the association officials said during a press conference in Kushiro that the contamination must have been caused by the continuing nuclear crisis at the Fukushima Daiichi power plant and that they will closely monitor future developments.
  • During the research whaling that started in late April, 17 whales were caught, and researchers examined six of them. Of the six, two were found tainted with 31 becquerels and 24.3 becquerels of cesium per kilogram of whale meat, they said.
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  • The upper limit tentatively stands at 500 becquerels per kilogram.
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Earth facing a mini-Ice Age 'within ten years' due to rare drop in sunspot activity [16... - 0 views

  • Sunspots are expected to disappear for years, maybe decades, after 2020A sharp decrease in global warming might resultThe sun is heading into an unusual and extended period of hibernation that could trigger a mini-Ice Age on Earth, scientists claim.
  • A decrease in global warming might result in the years after 2020, the approximate time when sunspots are expected to disappear for years, maybe even decades.
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Forecast predicts biggest Gulf dead zone ever [16Jun11] - 0 views

  • Scientists predict this year's "dead zone" of low-oxygen water in the northern Gulf of Mexico will be the largest in history — about the size of Lake Erie — because of more runoff from the flooded Mississippi River valley.
  • Each year when the nutrient-rich freshwater from the Mississippi and Atchafalaya rivers pours into the Gulf, it spawns massive algae blooms. In turn, the algae consume the oxygen in the Gulf, creating the low oxygen conditions. Fish, shrimp and many other species must escape the dead zone or face dying
  • Federal and university scientists predict this year's zone will be between 8,500 square miles and about 9,400 square miles. The actual size of the dead zone will be measured over the summer.
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  • The largest recorded dead zone was found in 2002 when 8,400 square miles of the Gulf was found to lacking sufficient oxygen for most marine life.
  • Eugene Turner, an oceanographer at Louisiana State University, said the dead zone has continued to get larger since it was first noticed and measured in the 1970s. He said the dead zone is getting worse with time.
  • The biggest contributor is the amount of fertilizer — and the nitrates and phosphates in them — that wind up in the Mississippi River each spring and get flushed out to the Gulf.
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Sun's Fading Spots Signal Big Drop in Solar Activity [15Jun11] - 0 views

  • Sun's Fading Spots Signal Big Drop in Solar Activity
  • Some unusual solar readings, including fading sunspots and weakening magnetic activity near the poles, could be indications that our sun is preparing to be less active in the coming years. The results of three separate studies seem to show that even as the current sunspot cycle swells toward the solar maximum, the sun could be heading into a more-dormant period, with activity during the next 11-year sunspot cycle greatly reduced or even eliminated.
  • The results of the new studies were announced today (June 14) at the annual meeting of the solar physics division of the American Astronomical Society, which is being held this week at New Mexico State University in Las Cruces. "The solar cycle may be going into a hiatus," Frank Hill, associate director of the National Solar Observatory's Solar Synoptic Network, said in a news briefing today (June 14).
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  • The studies looked at a missing jet stream in the solar interior, fading sunspots on the sun's visible surface, and changes in the corona and near the poles. [Photos: Sunspots on Earth's Star]
  • "This is highly unusual and unexpected," Hill said. "But the fact that three completely different views of the sun point in the same direction is a powerful indicator that the sunspot cycle may be going into hibernation."
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