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Articles 91 - 115 of 115

Full-Text Articles in Physical Sciences and Mathematics

Vitals Rates And Seasonal Movements Of Two Isolated Greater Sage-Grouse Populations In Utah's West Desert, Jason D. Robinson, Terry A. Messmer Jan 2013

Vitals Rates And Seasonal Movements Of Two Isolated Greater Sage-Grouse Populations In Utah's West Desert, Jason D. Robinson, Terry A. Messmer

Human–Wildlife Interactions

Declines in greater sage-grouse (Centrocercus urophasianus; hereafter, sage-grouse) populations in Utah over the last century parallel range-wide trends. However, little is known about the ecology of sage-grouse populations that inhabit Utah’s naturally fragmented habitats. Utah’s West Desert sage-grouse populations occupy sagebrush (Artemisia spp.) habitats that are geographically separated by the Great Salt Lake, and largely confined to the Sheeprock and Deep Creek watersheds. From 2005 to 2006, we monitored sage-grouse that were radio-collared in each watershed to determine the factors affecting the vital rates in these isolated populations. Livestock grazing by domestic cattle was the dominate land use, …

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Third Annual Environmental Law And Justice Symposium Issue: Introduction, Randall S. Abate, Richard D. Schulterbrandt Gragg Iii Jan 2013

Third Annual Environmental Law And Justice Symposium Issue: Introduction, Randall S. Abate, Richard D. Schulterbrandt Gragg Iii

Florida A & M University Law Review

No abstract provided.

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Student Perspective: Margaret Chase Smith Library 2011 Essay Contest:, Zoe Anderson, Ali Clift, Allaina Murphy Jan 2012

Student Perspective: Margaret Chase Smith Library 2011 Essay Contest:, Zoe Anderson, Ali Clift, Allaina Murphy

Maine Policy Review

Each year, the Margaret Chase Smith Library sponsors an essay contest for Maine high school seniors. The focus of the 2011 contest was environmen­tal protection. The essay prompt quoted a 1972 statement from Sen. Smith: “We must recognize that we’re not going to eliminate pollution overnight. It’s going to be a hard, long fight. It’s going to take a long time and a lot of sacrifice on the part of each one of us.” By happy coinci­dence, the essay contest topic fits perfectly with the subject matter of this special issue of Maine Policy Review on sustainability. We feature here …

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Effects Of Global Climate Change On Nigerian Agriculture: An Empirical Analysis, Apata T. .G Jun 2011

Effects Of Global Climate Change On Nigerian Agriculture: An Empirical Analysis, Apata T. .G

CBN Journal of Applied Statistics (JAS)

This paper presents an empirical analysis of the effects of global warming on Nigerian agriculture and estimation of the determinants of adaptation to climate change. Data used for this study are from both secondary and primary sources. The set of secondary sources of data helped to examine the coverage of the three scenarios (1971-1980; 1981-1990 and 1991-2000). The primary data set consists of 900 respondents’ but only 850 cases were useful. This study analyzed determinants of farm-level climate adaptation measures using a Multinomial choice and stochastic-simulation model to investigate the effects of rapid climatic change on grain production and the …

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Effects Of Normative Messages On Pro-Environmental Attitudes And Behaviorseffects Of Normative Messages On Pro-Environmental Attitudes And Behaviors, Connor Harron Jan 2011

Effects Of Normative Messages On Pro-Environmental Attitudes And Behaviorseffects Of Normative Messages On Pro-Environmental Attitudes And Behaviors, Connor Harron

Occam's Razor

As stated in the fourth assessment report of the Intergovernmental Panel on Climate Change (IPCC), the planet’s climate is warming at an unprecedented rate, and humans are responsible for the large majority of causes creating this situation. If humans are to repair the balance between themselves and nature, then a global environmental movement that includes widespread behavior and attitude reconstruction will have to occur. The current study seeks to build upon past research attempting to promote pro-environmental behavior change in individuals. The author examines the ability of modeling and norms presented in a video format to motivate individuals to change …

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Current Status Of Lichen Diversity In Iowa, James T. Colbert Jan 2011

Current Status Of Lichen Diversity In Iowa, James T. Colbert

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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Climate, Agricultural Strategies, And Sustainability In The Precolumbian Andes, Charles Ortloff, Michael E. Moseley Nov 2009

Climate, Agricultural Strategies, And Sustainability In The Precolumbian Andes, Charles Ortloff, Michael E. Moseley

Andean Past

No abstract provided.

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The Effects Of Climate Change On Economic Activity In Maine: Coastal York County Case Study, Charles S. Colgan, Samuel B. Merrill Jan 2008

The Effects Of Climate Change On Economic Activity In Maine: Coastal York County Case Study, Charles S. Colgan, Samuel B. Merrill

Maine Policy Review

Climate change can have significant ramifications for Maine’s economy. If short-term projections for the next century are accurate, at minimum sea level rise will become increasingly noticeable in association with more severe and destructive coastal storms. Charles Colgan and Samuel Merrill evaluate risk estimates by presenting a case study of the projected consequences of sea level rise and coastal storm damage on the economy of the state’s most vulnerable area, York County’s coastal communities.

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Introduction: Ask Not… Voices From Maine Addressing Climate Change And Energy, Sam Townsend Jan 2008

Introduction: Ask Not… Voices From Maine Addressing Climate Change And Energy, Sam Townsend

Maine Policy Review

No abstract provided.

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Maine’S Climate Yesterday, Today, And Tomorrow, George L. Jacobson, Ivan J. Fernandez, Paul A. Mayewski, Catherine V. Schmitt Jan 2008

Maine’S Climate Yesterday, Today, And Tomorrow, George L. Jacobson, Ivan J. Fernandez, Paul A. Mayewski, Catherine V. Schmitt

Maine Policy Review

Recent evidence suggests that climate change is occurring at an accelerated rate as a result of human-induced greenhouse gas emissions and associated pollutants. Based on a recently completed study, the authors describe the changes Maine’s climate is likely to undergo over the next century. They suggest that while reduction of greenhouse gases is crucial, Maine needs to be prepared to adapt to the impact that our already changing climate will have on various ecosystems and economic sectors within the state

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Climate. Scrubbing The Sky: Climate Change And The Productive Center, Marcy Murninghan Jul 2007

Climate. Scrubbing The Sky: Climate Change And The Productive Center, Marcy Murninghan

New England Journal of Public Policy

This article sketches out the efforts of government, business, and civil society to address the problem of climate change. It identifies some of the key initiatives underway — including proposals for more stringent caps on greenhouse gas (GHG) emissions; the creation of a market-based trading system that provides incentives and profits for entities that reduce their GHG emission levels; more robust research and development of alternative energy sources as well as new approaches to traditional ones; and continued public education — and portrays the bipartisan, collaborative, multilateral nature of saving Mother Nature. While acknowledging that ultimately these efforts may be …

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Inside Front & Back Covers: Changes And Variability Of Urban Sprawl - Implications For Local Climate Change, Robert Hellström Jun 2007

Inside Front & Back Covers: Changes And Variability Of Urban Sprawl - Implications For Local Climate Change, Robert Hellström

Bridgewater Review

No abstract provided.

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Artists' Depictions Of Catsteps In The Loess Hills Of Iowa: Evidence For Mid-Nineteenth Century Climate Change, Kimberly R. Dillon, Steven H. Emerman, Pamela K. Wilcox Jan 2006

Artists' Depictions Of Catsteps In The Loess Hills Of Iowa: Evidence For Mid-Nineteenth Century Climate Change, Kimberly R. Dillon, Steven H. Emerman, Pamela K. Wilcox

Journal of the Iowa Academy of Science: JIAS

Catsteps are the staircase-like features common on hillslopes of the Loess Hills of western Iowa. The record of artistic depictions of the Loess Hills was examined to determine when catsteps appeared. George Catlin, Karl Bodmer, and John James Audubon traveled up the Missouri River m 1832, 1833 and 1843, respectively, and between them, produced 31 works of art depicting either the Loess Hills or the loess bluffs on the Nebraska side of the river. Only three works by Bodmer of Blackbird Hill on the Nebraska side possibly show catsteps. The Assistant State Geologist, Orestes St. John, produced six sketches of …

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A Process Model Of Risk Communication: The Case Of Global Climate Change, Fiona Clark, Keith R. Stamm, Paula Reynolds Eblacas Jun 1999

A Process Model Of Risk Communication: The Case Of Global Climate Change, Fiona Clark, Keith R. Stamm, Paula Reynolds Eblacas

RISK: Health, Safety & Environment (1990-2002)

The authors describe a survey of public media use as it relates to different stages of awareness and concern regarding risk issues.

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Iowa's Declining Flora And Fauna: A Review Of Changes Since 1980 And An Outlook For The Future, Neil P. Bernstein Jan 1998

Iowa's Declining Flora And Fauna: A Review Of Changes Since 1980 And An Outlook For The Future, Neil P. Bernstein

Journal of the Iowa Academy of Science: JIAS

The status of Iowa's biodiversity was first summarized at a 1980 Iowa Academy of Science (IAS) symposium that was published in The Proceedings of the Iowa Academy of Science (Vol. 88, No. 1) in 1981. The 1980 symposium was updated in a recent IAS symposium, and the proceedings from this symposium are published, for the most part, in volume 105 of this journal. Most of the authors noted some positive trends, but, overall, species declines and habitat destruction remained a concern.

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Is Accurate Understanding Of Global Warming Necessary To Promote Willingness To Sacrifice?, Richard J. Bord, Ann Fisher, Robert E. O'Connor Sep 1997

Is Accurate Understanding Of Global Warming Necessary To Promote Willingness To Sacrifice?, Richard J. Bord, Ann Fisher, Robert E. O'Connor

RISK: Health, Safety & Environment (1990-2002)

Although not definitive, the authors' study suggests potential benefits from having a general public better informed about global climate change. They find, e.g., that accurate information appears to increase willingness to accept personal sacrifice.

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A Search For Average, Extremes, And Runs Of Unusual Weather In Iowa, R. E. Carlson, D. P. Todey Jan 1997

A Search For Average, Extremes, And Runs Of Unusual Weather In Iowa, R. E. Carlson, D. P. Todey

Journal of the Iowa Academy of Science: JIAS

Temperature and precipitation during the past decade have exhibited wide variation throughout Iowa. Is this unusual? An attempt was made to answer this question by computing various statistical parameters that characterize variation in Iowa's long term climatic record. Absolute deviations were used to identify the most and least variable months and years since 1900. Overall, 1936 with a very cold winter and very warm summer was the least normal year. Runs of daily weather showed that heat and cold stress could often persist for more than 1 month. Runs of dry days were much longer than runs of wet days. …

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Analysis Of An Iowa Aridity Index In Relationship To Climate And Crop Yield, Soumare Harouna, R. E. Carlson Jan 1994

Analysis Of An Iowa Aridity Index In Relationship To Climate And Crop Yield, Soumare Harouna, R. E. Carlson

Journal of the Iowa Academy of Science: JIAS

An aridity index and its components, temperature and precipitation, for the period from 1900 through April 1993 were defined and characterized. This index describes the anomalous behavior of both temperature and precipitation over time. Our intent was to examine climate variability in Iowa. Moving mean and standard deviations over various lengths of time were calculated from three time series. We found that these indices fluctuate considerably from year to year and from month to month. The lowest aridity index values occurred in the recent summer of 1992, and the highest occurred during the very drought-prone 1930s. The 12-month moving mean …

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Book Review, Angela V. Tafro Sep 1993

Book Review, Angela V. Tafro

RISK: Health, Safety & Environment (1990-2002)

Review of: VICE PRESIDENT AL GORE, EARTH IN THE BALANCE: ECOLOGY AND THE HUMAN SPIRIT. (Plume 1993) [368 pp.] Acknowledgements, bibliography, figures, foreword, illustrations, index, notes. LC 92- 34013; ISBN 0-452-26935-0. [Paper $13.00. 375 Hudson Street, New York NY 10014.]

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Iowa's Climate As Projected By The Global Climate Model Of The Goddard Institute For Space Studies For A Doubling Of Atmospheric Carbon Dioxide, E. S. Takle, S. Zhong Jan 1991

Iowa's Climate As Projected By The Global Climate Model Of The Goddard Institute For Space Studies For A Doubling Of Atmospheric Carbon Dioxide, E. S. Takle, S. Zhong

Journal of the Iowa Academy of Science: JIAS

Results of a global climate model that simulates climate under a doubling of atmospheric carbon dioxide (estimated to occur by the latter half of the twenty first century) have been interpolated to Iowa. Summer temperatures under such a doubling are projected to rise by 4 to 7°F (2.2 to 3.9°C) and winter temperatures by 10 to 11° (5.6 to 6.1°C). Estimates of space heating and cooling demands from these data suggest a 30 to 35% decrease in space heat demand and a 200 to 300% increase in space cooling demand. Temperature variability is projected to decrease. Precipitation estimates from global …

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Heating Degree Days In Iowa Relative To Home Natural Gas Consumption, Conservation Efforts, And Long-Term Trends, Richard E. Carlson Jan 1991

Heating Degree Days In Iowa Relative To Home Natural Gas Consumption, Conservation Efforts, And Long-Term Trends, Richard E. Carlson

Journal of the Iowa Academy of Science: JIAS

A methodology is presented to assess the effectiveness of conservation efforts relative to home heating. Billing period heating degree days and natural gas consumption relationships are established for a typical household for nineteen heating seasons using simple linear regression. Associated correlations (r2 values) were greater than 0. 95 for nineteen different seasons. Regression coefficients (b0 and b1) were found to decrease with time indicating reduced natural gas consumption due to conservation efforts. Procedures are presented to illustrate dollar savings relative to conservation efforts using the regression relationships. Long-term trends for heating degree days at the Ames, …

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Using Management Techniques To Solve Environmental Problems, Patrick D. Kelly Jun 1990

Using Management Techniques To Solve Environmental Problems, Patrick D. Kelly

RISK: Health, Safety & Environment (1990-2002)

Arguing that little effective progress is being made in solving problems of varying urgency, this paper suggests a leadership role for science and engineering societies. It proposes that such societies attempt to prioritize problems and attempt to focus public awareness (and calls to action) in a more systematic way.

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Atmospheric Response To 1988 Drought Conditions And Future Climate Implications, Michael D. Mccorcle Jan 1990

Atmospheric Response To 1988 Drought Conditions And Future Climate Implications, Michael D. Mccorcle

Journal of the Iowa Academy of Science: JIAS

Plentiful precipitation in the central United States is one of the basic components of the successful agricultural industry in the Corn Belt. A combination of moisture, wind, and topographic factors creates an ideal condition for rainfall over most of the region during the late spring and early summer. In 1988, many ingredients necessary for wet weather were absent. The region experienced a drought unequalled since the 1930's. The drought of 1988 demonstrated chat the symptom of drought, namely, dry soils, can exacerbate and even perpetuate drought conditions by decreasing available moisture, altering circulation patterns vital to storm development, and increasing …

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Climate Trends In Iowa, Richard E. Carlson Jan 1990

Climate Trends In Iowa, Richard E. Carlson

Journal of the Iowa Academy of Science: JIAS

Long-term trends for various weather elements are presented for the period 1900-1988. Summer and winter season, and annual air temperature patterns are statistically weak because of large inrerannual variability, but trends are evident. There was a general warming from 1900 until the 40's, with a leveling or slight cooling following. Since the mid-70's, a warming trend seems to be taking place, but this cannot be confirmed. Spring season air temperatures showed no trend except that the most recent 4 years (1985-1988) were decidedly warmer than normal. Winter season air temperatures showed a change in trend in the 30's, but the …

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Climate Change And The Potential Impact On The Soil Resource, J. L. Hatfield Jan 1990

Climate Change And The Potential Impact On The Soil Resource, J. L. Hatfield

Journal of the Iowa Academy of Science: JIAS

Climatic change will lead to changes in the carbon dioxide C02, temperature, and precipitation. There have been many predictions of the effect of climatic change on plant growth but none on the soil parameters or water use. To fully understand the implications on soil management from climate change the expected changes in soil temperature, water use, and water and nutrient use efficiency need quantification.

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