Dr. James C. White

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  www.cualum.org/2008/12/18/bpl-events-winter-spring-09/ - [Cached Version]
  Published on: 1/5/2009    Last Visited: 1/5/2009  

  Professor James White Director, Institute of Arctic and Alpine Research / Depar tments of Geological

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  www.wvec.com/news/topstories/stories/wvec_local_102809_ - [Cached Version]
  Published on: 10/28/2009    Last Visited: 10/29/2009  

  It's happening now and it's going to continue to happen in the future," stated Dr. Jim White with the University of Colorado, Boulder.

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  dennisprager.meetup.com/2/messages/5724802/ - [Cached Version]
  Last Visited: 9/2/2009  

  Lakewood, Colo. - This April, the public is invited to hear Dr. James White and Christopher Horner discuss opposing views on the global climate debate, specifically in regard to the Kyoto Protocol.
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  Dr. White, taking the affirmative, is a professor of geological sciences as well as a fellow and the director of INSTAAR at the University of Colorado-Boulder.

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  www.climateactionproject.com/letter/sign.php - [Cached Version]
  Published on: 10/9/2008    Last Visited: 10/9/2008  

  James White, Ph.D.Director, Institute of Arctic and Alpine Research (INSTAAR)Professor, Geological Sciences and Environmental StudiesUniversity of Colorado

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  www.antarcticconnection.com/antarctic/news/2005-2/09130 - [Cached Version]
  Published on: 9/13/2005    Last Visited: 3/14/2007  

  For the first time, researchers were able to separate "pyrogenic" and anaerobic methane sources using a stable-isotope analysis of the ice cores, said James White of CU-Boulder's Institute of Arctic and Alpine Research and study co-author.They found methane emissions from burning dropped about 40 percent from 1000 to 1700, likely due in large part to decreased landscape burning by indigenous populations in the Americas devastated by diseases brought to the New World by European explorers.
  
  Undertaken by a team from CU-Boulder, NIWA, Australia's Commonwealth Scientific and Industrial Research Organization, or CSIRO, Australia's Department of the Environment and Heritage and the National Oceanic and Atmospheric Administration, the study was published in the Sept. 9 issue of Science.
  
  "The results frankly were a shock," said White.
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  The study is important because methane increases have had the second highest impact on climate change over the past 250 years behind carbon dioxide, accounting for about 20 percent of the warming from all greenhouse gas increases, White said.Methane is more powerful than carbon dioxide in slowing the release of radiated heat away from Earth, he said.
  
  About 60 percent of atmospheric methane is generated from human-related activities, according to the International Panel on Climate Change.Methane increases in the past 200 years are due to increased burning of grasslands, forests and wood fuels, more intense livestock activity and rice cultivation and gas leaked from fossil fuel production and waste management.In addition, natural sources of methane include wetlands, termites and wildfires.
  
  Overall methane levels in the atmosphere increased about 2 percent from about 1 A.D. to 1000 and decreased by 2 percent from 1000 to 1700, according to the study.Since the 1700s, the levels have increased by nearly 300 percent, said White.
  
  Surprisingly, the study showed the amount of methane produced from burning was about the same 1,000 years ago as it is today, said White."There has been a naÔve idea out there that humans were just passive, pastoral passengers on the planet up until just a few hundred years ago," he said."We have shown that is not the case."
  
  The study also suggests that natural climate change has played a role in changing methane levels in the atmosphere, at least on a regional level, White said.During the Medieval Warm Period from about 1000 to 1270, there appears to have been a slight increase in biomass burning in Europe.In cooler periods like the Little Ice Age from roughly 1300 to 1850, biomass burning in the Northern Hemisphere appears to have decreased somewhat while anaerobic activity by bacteria in bogs and swamps probably increased, he said.
  
  Involving the United States, New Zealand and Australia, the international project focused on ice cores from Antarctica's Law Dome, White said."We could not have undertaken this study without all three countries," he said."These types of projects are not cheap, and each group brought a unique line of expertise."
  
  White said the team hopes to look at methane levels going back prior to 2,000 years ago."The larger question is when humans began influencing the climate and nutrient system," he said.

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  www.eurekalert.org/pub_releases/2008-06/uoca-gic061808. - [Cached Version]
  Published on: 6/18/2008    Last Visited: 6/19/2008  

  Contact: Jim Whitejwhite@colorado.edu303-492-2219University of Colorado at Boulder
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  The study included 17 co-investigators from Europe, one from Japan and two from the United States -- Jim White and Trevor Popp from the University of Colorado at Boulder.
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  "We are beginning to tease apart the sequence of abrupt climate change," said White, whose work was funded by the National Science Foundation's Office of Polar Programs."Since such rapid climate change would challenge even the most modern societies to successfully adapt, knowing how these massive events start and evolve is one of the most pressing climate questions we need to answer."
  
  Both dramatic warming events were preceded by decreasing Greenland dust deposition, indicating higher tropical temperatures and significantly more rain falling on the deserts of Asia at the time, said White.The team believes the ancient tropical warming caused large, rapid atmospheric changes at the equator, the intensification of the Pacific monsoon, sea-ice loss in the north Atlantic Ocean and more atmospheric heat and moisture over Greenland and much of the rest of the Northern Hemisphere.
  
  "Here we propose a series of events beginning in the lower latitudes and leading to changes in the ocean and atmosphere that reveal for the first time the anatomy of abrupt climate change," the authors wrote.White likened the abrupt shift in the Northern Hemisphere circulation pattern to shifts in the North American jet stream as it steers storms around the continent.
  
  "We know such events are in Earth's future, but we don't know when," said White."One question is whether we can see the symptoms before big problems occur.Until we answer these questions, we are speeding blindly down a narrow road, hoping there are no curves ahead."
  
  Each yearly record of ice can reveal past temperatures and precipitation levels, the content of ancient atmospheres and even evidence for the timing and magnitude of distant storms, fires and volcanic eruptions, said White.The cores from the site -- located roughly in the middle of Greenland at an elevation of about 9,850 feet -- are four-inch-diameter cylinders brought to the surface in 11.5-foot lengths, said White.

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  topaztic.com/modules/news/index.php?storytopic=7&start= - [Cached Version]
  Published on: 8/20/2007    Last Visited: 8/2/2008  

  "There's not much out there that you can't run stable isotopes on," said Jim White, a geologist at the University of Colorado who runs the stable isotope laboratory there and is not connected to the marijuana project."If I fed you with a food that had a unique isotopic signature and then measured your breath, I could see how quickly you were metabolizing."
  
  Dr. White said that back in graduate school, he and his friends used isotopes to find out how long it took for the water in their bodies to completely cycle through.

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  Published on: 1/5/2009    Last Visited: 1/5/2009  

  Professor James White Director, Institute of Arctic and Alpine Research / Depar tments of Geological

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  www.texasheritagesongwriters.com/team.php - [Cached Version]
  Published on: 9/14/2009    Last Visited: 9/14/2009  

  James White

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  www.ascribe.org/cgi-bin/behold.pl?ascribeid=20090826.09 - [Cached Version]
  Published on: 1/1/2009    Last Visited: 8/29/2009  

  The period was warmer than today, with less ice in Greenland and 15-foot higher sea levels than present -- conditions similar to those Earth faces as it warms in the coming century and beyond, said CU-Boulder Professor Jim White, who is leading the U.S. research contingent.
  
  While three previous Greenland ice cores drilled in the past 20 years covered the last ice age and the period of warming to the present, the deeper ice layers representing the warm Eemian and the period of transition to the ice age were compressed and folded, making them difficult to interpret, said White. Radar measurements taken through the ice sheet from above the NEEM site indicate the Eemian ice layers below are thicker, more intact and likely contain more accurate, specific information, he said.
  
  "Every time we drill a new ice core, we learn a lot more about how Earth's climate functions," said White, "The Eemian period is the best analog we have for future warming on Earth."
  
  Annual ice layers formed over millennia in Greenland by compressed snow reveal information on past temperatures and precipitation levels and the contents of ancient atmospheres, said White, who directs CU-Boulder's Institute of Arctic and Alpine Research.
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  The United States is leading the laboratory analysis of atmospheric gases trapped in bubbles within the NEEM ice cores, including greenhouse gases like carbon dioxide and methane, said White.
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  "Evidence from ancient ice cores tell us that when greenhouse gases increase in the atmosphere, the climate warms," said White. "And when the climate warms, ice sheets melt and sea levels rise. If we see comparable rises in sea level in the future like we have seen in the ice-core record, we can pretty much say good-bye to American coastal cities like Miami, Houston, Norfolk, New Orleans and Oakland."
  
  Increased warming on Earth also has a host of other potentially deleterious effects, including changes in ecosystems, wildlife extinctions, the growing spread of disease, potentially catastrophic heat waves and increases in severe weather events, according to scientists.
  
  While ice cores pinpoint abrupt climate change events as Earth has passed in and out of glacial periods, the warming trend during the present interglacial period is caused primarily by human activities like fossil fuel burning, White said.
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  CONTACTS: Jim White, 303-492-7909, Jwhite@colorado.edu

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