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Show TUESDAY, FEBRUARY 27. 2001 THE DAILY UTAH CHRONICLE rming WYNNE PARRY Chronicle News Writer The average temperature of the Northern Hemisphere has increased significantly since the start of the Industrial Revolution, according to a study conducted by University of Utah researchers. The temperature has risen i.i degrees Celsius, or two and the degrees Fahrenheit, between the concluded. they 1990s, The work of Rob Harris and David Chapman, assistant professor and professor, respectively, in the department of geology and geophysics, will appear as the mid-i70- cover article of the March 1 os issue of Geophysical Research Letters. Their work establishes a baseline for temperature change since the Industrial Revolution, Chapman said. And the results strengthen the link between human activity and global climate change. The Industrial Revolution saw an increase in the comsuch as carbon dioxbustion of fossil fuels. ide, begin to enter the atmosphere. Carbon dioxide and other greenhouse gases prevent heat from escaping out into space, warming the Earth's surface. mean temper"Even a small change in the long-terature can be very significant," Harris said. A shift in the ayerage reflects changes in both high and low extremes. "There is wide agreement that in this century the Earth's temperature has increased by 0.6 degrees Celsius," Chapman said. measurements only extend However, back to the late 1800s. so the total change since the Industrial Revolution remained unknown. To determine the change since the Industrial Revolution, Harris and Chapman looked down into the ground. Fluctuations in the Earth's surface temperature penetrate rock slowly. Precise temperature measurements taken from holes several hundred meters deep revealed cooler and warmer waves traveling downward. These changes reflected past surface weather. By exploring the history stored in the Earth's "thermal memory," Harris and Chapman determined that average m Where temperatures had increased around 1.1 degrees Celsius. They combined the analysis of ground measurements with studies on readings observed during the 1900s. "Over their period of overlap, the records very well," Harris said. 1 agreed ing The study results join 2 growing body of rising sea levels and air temperature records that indicate a global climate change, Chap- man said. Few debate the evidence that the world is warming, or that greenhouse gases have increased significantly. "What people are really arguing is whether there is a link," Harris said. The accelerated rate of warming found by the study can not be fully explained by natural shifts in the Earth's place," Blundell said. Student referendums were a topic of heated debate. The referendum votes would address new student buildings and fee increases on campus. temperature. Past warming trends and cool periods like ice ages have resulted from slight changes in the Earth's orbit. During these cycles, the average temperature changes 4 or 5 C over the course of 10,000 years. Chapman said. "What suggests that this is not a natural cycle is that the Earth's temperature has changed by more than one degree in two centuries," he said. "Increases in temperature seem to be highly correlated with the amount of greenhouse gases in the atmos- rwWiTTiiiiTWii)Ill'iriiiiiiiiiiriii tiw MffliMiimrrri'TTnira iwm Ben Lowe. Other parties believe student referendums are ideal but in reality are not possible due to student apathy. The Unity, U Force and Innovation parties also agreed that elected offices within student government relay student opinions. "I won't oppose it, but I don't think its realistic," said Unity Party candidate Katrina vice-preside- nt Mustoe. iniiinnr bm GIRL Wednesday February 28 7 p.m. Union Theater . 585-ASU- U Opportunities are available for exceptional students with the following majors: companies, Such as our STARS air traffic control system. And our we're breaking new ground in every- award-winnin- g Nigh6ight Computer Science Computer Engineering Electrical Engineering Mechanical Engineering Math Physics Chemical Engineering Aeronautical Engineering FinanceAccounting Industrial and Labor Relations MarketingCommunications Management Human Resources technology. 3ut it all starts with you. Your creativity. Your knowledge and innovation. And enthusiasm about the future. In return, we offer exceptional training and professional development opporwork environment. And incredible benefits including flexitunities. A supportive; down-to-eart- h check out our website at www.rayjohs.CGnicanipus for further information including a calendar of recruiting events. At Raytheon, we strive to be the employer of choice for a diverse workforce by attracting, retaining, and recognizing the most talented, resourceful and creative people. ble schedules designed to respect your quality of life. So you can still show off all those great qualities of yours outside of work, too. contact your career placement office for information on We'll be visiting your campus soon schedules and to arrange for an interview. If you are unable to meet with us, please send your resume to: resumerayjobs.corn (ASCII text only; no attachments). Raytheon National Attn: Dallas, TX Staffing Data Center, P.O. Box G6024S, MS-20Company, U.S. Citizenship may be required. We in nt QVS1 report on the potential impacts of global warming. A previous report estimated the increase could be as much as 10.5 degrees Fahrenheit during the coming cen- thing from defense and commercial electronics, and business aviation and special mission aircraft. As a Raytheon employee, you'll contribute to the development of exciting, revolutionary technology designed to make life better, easier, and safer throughout the world. 75266. iiiiii phere," he said. Rising population and energy consumption will only increase the amount of greenhouse gases produced. "My concern is not what the temperature has done in the past but what it might do in the future," Chapman said. Last week, the United Nations issued a summary tury. The more recent report listed the potential impacts of the warming. They included displacement of populations in the mosf affected areas, greater risk of disease as mosquitos spread, the loss of species as their habitats change, and increasing "freak" weather conditions like cyclones and hurricanes. The No Bull Party believes there should be a large student vote on U issues attached to ballots. "We want to make it a part of Redbook the ASUU constitution," said No Bull presidential candidate student-governme- Unity addressed plans to revamp the A. Ray Olpin University Union by relocating administrative offices to other buildings, making the union more student oriented. Other parties also expressed a desire to make the union more useful for students. "Make it more of a student evidence-includ- it matters most. As one of the world's leading diversified technology continued from page aie an equal opportunity employer. Bringing technology to the edge 3 WWW.AtUUUTAH.ISU |
