Digital Commons Network^™

Reading Wordsworth In The Tar Sands, Stephen S. Collis

The Goose

A report, in the form of a long poem, on the author's participation in the 5th annual Tar Sands Healing Walk, organized by the Athabasca Chipewyan First Nation, in Fort McMurray Alberta.

Global Warming And Population Responses Among Great Plains Birds, Paul A. Johnsgard

Zea E-Books Collection

Based on an analysis of 47 years (1967–2014) of Audubon Christmas Bird Counts (CBC), evidence for population changes and shifts in early winter (late December) ranges of nearly 150 species of birds in the Great Plains states is summarized, a region defined as including the Dakotas, Nebraska, Kansas, Oklahoma, and the Texas panhandle. The rationale for this study had its origins in Terry Root’s 1988 Atlas of North American Wintering Birds. Root’s landmark study provided a baseline for evaluating the nationwide winter distributions of 253 North American birds in the mid-20th century, using data from the National Audubon Society’s …

Biogeochemical Analysis Of Ancient Pacific Cod Bone Suggests Hg Bioaccumulation Was Linked To Paleo Sea Level Rise And Climate Change, Maribeth S. Murray, C. Peter Mcroy, L. K. Duffy, Amy Hirons, J. M. Schaaf, Robert P. Trocine, John Trefry

Marine & Environmental Sciences Faculty Articles

Deglaciation at the end of the Pleistocene initiated major changes in ocean circulation and distribution. Within a brief geological time, large areas of land were inundated by sea-level rise and today global sea level is 120 m above its minimum stand during the last glacial maximum. This was the era of modern sea shelf formation; climate change caused coastal plain flooding and created broad continental shelves with innumerable consequences to marine and terrestrial ecosystems and human populations. In Alaska, the Bering Sea nearly doubled in size and stretches of coastline to the south were flooded, with regional variability in the …

Agenda: Seeds Of Change: Responding To Global Change In A Bottom-Up World, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, University Of Colorado Boulder. School Of Law, Posner Center For International Development, Resolve (Firm), Newmont Mining Corporation

Seeds of Change: Responding to Global Change in a Bottom-Up World (Martz Winter Symposium, February 12-13)

Sponsors: Posner Center for International Development, RESOLVE, Inc., Newmont Mining Corporation, and Getches-Wilkinson Center for Natural Resources, Energy, and the Environment.

Conference moderators, panelists and speakers included University of Colorado Law School professors Phil Weiser, Sarah Krakoff, Britt Banks, and Lakshman Guruswamy.

This conference is made possible through the generous support of donors who sponsored this year’s Martz Sustainability Symposium (including Newmont Mining Corporation) and those who have invested in our Clyde O. Martz Endowed Fund for Natural Resources Management (including Brian Dolan and Davis Graham and Stubbs LLP). The Martz Natural Resources Management Fund was established in the memory …

Transition From Sagebrush Steppe To Annual Grass (Bromus Tectorum): Influence On Belowground Carbon And Nitrogen, Benjamin M. Rau, Dale W. Johnson, Robert R. Blank, Annmarrie Lucchesi, Todd G. Caldwell, Eugene W. Schupp

Wildland Resources Faculty Publications

Vegetation changes associated with climate shifts and anthropogenic disturbance have major impacts on biogeochemical cycling. Much of the interior western United States currently is dominated by sagebrush (Artemisia tridentata Nutt.) ecosystems. At low to intermediate elevations, sagebrush ecosystems increasingly are influenced by cheatgrass (Bromus tectorum L.) invasion. Little currently is known about the distribution of belowground organic carbon (OC) on these changing landscapes, how annual grass invasion affects OC pools, or the role that nitrogen (N) plays in carbon (C) retention. As part of a Joint Fire Sciences-funded project called the Sagebrush Treatment Evaluation Project (SageSTEP), we quantified …

Water Column Productivity And Temperature Predict Coral Reef Regeneration Across The Indo-Pacific, Bernhard Riegl, Peter W. Glynn, Evie A. Wieters, Samuel J. Purkis, C. D'Angelo, Joerg Wiedenmann

Marine & Environmental Sciences Faculty Articles

Predicted increases in seawater temperatures accelerate coral reef decline due to mortality by heat-driven coral bleaching. Alteration of the natural nutrient environment of reef corals reduces tolerance of corals to heat and light stress and thus will exacerbate impacts of global warming on reefs. Still, many reefs demonstrate remarkable regeneration from past stress events. This paper investigates the effects of sea surface temperature (SST) and water column productivity on recovery of coral reefs. In 71 Indo-Pacific sites, coral cover changes over the past 1-3 decades correlated negative-exponentially with mean SST, chlorophyll a, and SST rise. At six monitoring sites …

Does The Production Of Isoprene Affect The Productivity Of Poplars?, Erik J. Mcfarland, Elizabeth Ann Parra, Greg Barron-Gafford, Rebecca Larkin Minor, Maggie Heard

STAR Program Research Presentations

Poplar trees are known to produce a chemical called isoprene that plays a complex, and not fully understood, role in the chemical process of photosynthesis. Understanding why plants produce isoprene and under what conditions will help scientists make more accurate predictions about poplars’ photosynthetic capabilities in future climates.

What benefit could isoprene provide a plant? The literature suggests its production could help plants tolerate heat stress. We studied two genetic lines of trees in a common garden of Populus, one line with the gene for producing isoprene and a second line without that gene. We subjected some trees of …

Climate Change Impacts On Ocean And Coastal Law: U.S. And International Perspectives, Randall S. Abate

Faculty Books and Book Contributions

Ocean and coastal law has grown rapidly in the past three decades as a specialty area within natural resources law and environmental law. The protection of oceans has received increased attention in the past decade because of sea-level rise, ocean acidification, the global overfishing crisis, widespread depletion of marine biodiversity such as marine mammals and coral reefs, and marine pollution. Paralleling the growth of ocean and coastal law, climate change regulation has emerged as a focus of international environmental diplomacy, and has gained increased attention in the wake of disturbing and abrupt climate change related impacts throughout the world that …

Cooling Down Florida's Coast: Saving East Central And Southeast Florida's Sea Turtles From Impacts Of Climate Change, Kara Graham

Student Works

No abstract provided.

Impact Of Warm Weather Events On Prolongation Of The Life Cycle Ofstomaphis Walker (Hemiptera, Aphididae, Lachninae), Lukasz Depa, Artur Taszakowski, Mariusz Kanturski

Turkish Journal of Zoology

Termination of the life cycle of sexually reproducing aphids usually takes place in autumn, during October and November, in the climatic conditions of Central Europe. However, episodes of warm weather are suspected to trigger prolongation of the life cycle. Observations of Stomaphis spp. İn early winter of 2013/2014 in southern Poland support this thesis. Surprisingly, adult females of two species were collected as late as early January and early March. High daily temperatures during this period were the probable cause of aphid survival, despite frosty nights. The possibility of the influence of warm weather episodes (higher temperature) on prolongation of …

Effects Of Drought On Forests And Rangelands In The United States: A Comprehensive Science Synthesis, James M. Vose, James S. Clark, Charles H. Luce, Toral Patel-Weynand

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

This assessment provides input to the reauthorized National Integrated Drought Information System (NIDIS) and the National Climate Assessment (NCA), and it establishes the scientific foundation needed to manage for drought resilience and adaptation. Focal areas include drought characterization; drought impacts on forest processes and disturbances such as insect outbreaks and wildfire; and consequences on forest and rangeland values. Drought can be a severe natural disaster with substantial social and economic consequences. Drought becomes most obvious when large-scale changes are observed; however, even moderate drought can have long-lasting impacts on the structure and function of forests and rangelands without these obvious …

Maine's Climate Future 2015 Update, University Of Maine

Publications

No abstract provided.

Climate Driven Changes To Malaria Transmission Patterns In Ethiopian Highlands, Amir Said Siraj

Electronic Theses and Dissertations

In the highlands of East Africa, the most populated regions in Africa, temperature is assumed to be intimately connected to the patterns of malaria both in time and space. A large section of the Ethiopian population in this region has historically been shielded from the disease mainly due to the altitudes in the highland regions that have remained free of the disease. However, the region has also seen a large part of its population being affected by malaria in epidemic outbreaks that seem to follow climatic anomalies, especially those of inter-annual increases in temperature. This project examines the inter-annual variability …

Implications Of A Changing Agro-Ecosystem On The Nascent Wine Grape Production Industry In Idaho, Eric Lindquist

Public Policy and Administration Faculty Publications and Presentations

Wine-grape growing in the state of Idaho is just now coming into its own. Unlike traditional and established row crops, sustainable wine grape production requires the encouragement and development of new agricultural capacity in the state. Concurrently, creating a sustainable wine grape production culture in the state may be constrained and impacted by a changing climate and related stresses on the ecosystem of the semi-arid inland northwest. An understanding of the effect that a changing ecosystem will have on the viability of growing wine grapes, as well as an examination of the challenges that both farmers and policymakers will face …

Rescuing The People Of Tuvalu Towards An I.C.J. Advisory Opinion On The International Legal Obligations To Protect The Environment And Human Rights Of Populations Affected By Climate Change, Mariya Gromilova

Intercultural Human Rights Law Review

2014 has been announced by the U.N. General Assembly as the "International Year of Small Island Developing States" with the goals of raising awareness of the Small Island Developing States' (SIDS) unique developmental challenges in relation to a range of environmental problems including climate change, and of fostering the ambition to find solutions for these vulnerable States.' However, the way in which international law is constructed runs counter to the ambitions of the General Assembly. The people of Tuvalu, one of the SIDS, are not to blame for climate change, yet they experience its most severe impacts. Regardless of the …

The Impacts Of Climate Change Mitigation Strategies On Animal Welfare, Sara Shields, Geoffrey Orme-Evans

Animal Welfare Collection

The objective of this review is to point out that the global dialog on reducing greenhouse gas emissions in animal agriculture has, thus far, not adequately considered animal welfare in proposed climate change mitigation strategies. Many suggested approaches for reducing emissions, most of which could generally be described as calls for the intensification of production, can have substantial effects on the animals. Given the growing world-wide awareness and concern for animal welfare, many of these approaches are not socially sustainable. This review identifies the main emission abatement strategies in the climate change literature that would negatively affect animal welfare and …

A Balanced Perspective On Animal Welfare For Improved Meat And Meat Products, A. Y. Chulayo, V. Muchenje

Farm Animal Welfare Collection

Increased public concern for animal welfare in the logistics chain has led to a rise in the scrutiny of the treatment of food animals. Factors affecting the status of welfare of slaughter animals begin at the farm and occur during transportation and at the abattoir. The activities that animals pass through before slaughter are thought to have negative effects on both the animal and the product. Before or during this period, animals suffer pain, which compromises their physical, health and biochemical status, and meat quality and quantity; which leads to economic losses. Environmental impact plays a role in the behaviour, …

Climate Trends In The Casco Bay Region, Marina Schauffler Phd

Publications

The Casco Bay region is vulnerable to all seven of the climate stressors identified by the U.S. Environmental Protection Agency (US EPA): warmer summers; warmer winters; warmer waters; increased drought; increased storminess (evident in higher total precipitation, frequency and intensity); sea-level rise; and ocean acidification (US EPA 2014). These climate stressors do not operate in isolation. Compounding their impacts are factors such as population growth, habitat fragmentation and destruction, and resource depletion that can further tax ecosystems and species. This document summarizes current scientific evidence of these trends within Maine and, where possible, within the Casco Bay watershed (which coincides …

A Changing Casco Bay, The Bay Where You Work And Play Is At Risk, Learn How You Can Help Protect The Health Of Casco Bay, Friends Of Casco Bay

Publications

No abstract provided.

Status Of The World’S Baleen Whales, Peter O. Thomas, Randall R. Reeves, Robert L. Brownell Jr.

United States Department of Commerce: Staff Publications

No global synthesis of the status of baleen whales has been published since the 2008 IUCN Red List assessments. Many populations remain at low numbers from historical commercial whaling, which had ceased for all but a few by 1989. Fishing gear entanglement and ship strikes are the most severe current threats. The acute and long-term effects of anthropogenic noise and the cumulative effects of multiple stressors are of concern but poorly understood. The looming consequences of climate change and ocean acidification remain difficult to characterize. North Atlantic and North Pacific right whales are among the species listed as Endangered. Southern …

Case Study: Producer Concerns And Perceptions Regarding The Effect Of Methane On Cattle Production And The Environment: A Survey Of Nebraska Producers, B. M. Boyd, A. Jones, Lisa Franzen-Castle, K. Jenkins, Richard J. Rasby, Matt K. Luebbe, Richard R. Stowell, Samodha C. Fernando, Galen E. Erickson

Department of Animal Science: Faculty Publications

Enteric methane production from cattle and its effect on climate change has been a topic of debate. Multiple studies have explored methods to reduce cattle enteric methane production while simultaneously improving performance. However, most strategies developed have not been widely implemented by cattle producers. Knowledge of producer concerns and perceptions on methane production from cattle and its effect on the environment may be limited. Therefore, the objectives of this survey were to determine what Nebraska producers know about methane production by cattle and how it affects performance and to determine whether different age groups, regions of Nebraska, and production size …

Climate Change Impact And Adaptation In Temperate Grassland And Livestock Industries, Afshin Ghahramani, Andrew D. Moore

IGC Proceedings (1977-2023)

Climate is projected to have negative impact on temperate grassland and livestock productions across the globe. Moderately elevated atmospheric CO₂ in the near future is expected to increase plant photosynthetic rates but this is likely to be limited by soil nitrogen deficits. However, in Australia at least it is unlikely that positive effect of elevated CO₂ on plant production be able to offset the negative impacts of climate change. Currently there is a considerable gap between actual and achievable production and profit in Australian grazing systems and many management and genetic improvements for climate adaptation would operate by …

Caribbean Heat Threatens Health, Well-Being, And The Future Of Humanity, Cheryl C. Macpherson, Muge Akpinar-Elci

Community & Environmental Health Faculty Publications

Climate change has substantial impacts on public health and safety, disease risks and the provision of health care, with the poor being particularly disadvantaged. Management of the associated health risks and changing health service requirements requires adequate responses at local levels. Health-care providers are central to these responses. While climate change raises ethical questions about its causes, impacts and social justice, medicine and bioethics typically focus on individual patients and research participants rather than these broader issues. We broaden this focus by examining awareness among health-care providers in the Caribbean region, where geographic and socioeconomic features pose particular vulnerabilities to …

Climate Change And Human Rights, Michael Burger, Jessica A. Wentz

Sabin Center for Climate Change Law

This report, commissioned by the United Nations Environment Programme (UNEP), describes the nexus between climate change, environmental degradation, and the impairment of fundamental human rights, such as the rights to food, water, housing, and life. It explains how governments and other actors can address climate change in a manner consistent with their obligations to respect, protect, promote and fulfill human rights. The report was released during COP21 to help inform the development of the Paris Agreement.

Draft Nepa Guidance Requires Agencies To Consider Both Ghg Emissions And The Impacts Of Climate Change On Proposed Actions, Jessica A. Wentz

Sabin Center for Climate Change Law

On December 24, 2014, the Council on Environmental Quality (CEQ) released revised draft guidance on how federal agencies should evaluate greenhouse gas (GHG) emissions and the impacts of climate change when conducting reviews under the National Environmental Policy Act (NEPA). The CEQ’s new guidance does not impose any new legal requirements on federal decision-makers, but it does clarify how federal agencies should consider the effects of GHG emissions and climate change in a manner consistent with their preexisting obligations under NEPA. It is significantly more detailed than the draft guidance released by CEQ in February 2010, and unlike its predecessor, …

Politicized Climate Change Communication: An Integrative Complexity Analysis, Meredith A. Repke

Graduate Student Theses, Dissertations, & Professional Papers

The vast majority of scientists agree that anthropogenic activities have caused the level of CO₂ in the atmosphere to rise at an unprecedented rate, and that the consequences of such a rise may very well be extreme. Despite these warnings, the American people do not possess, on average, the same level of concern towards climate change as scientists. The polarization of media in recent decades, the prevalence of selective exposure, and the general position on climate change of the two major political parties have led to liberals and conservatives consuming different information relevant to climate science. While evidence exists …

Mechanistic Species Distribution Modelling As A Link Between Physiology And Conservation, Tyler G. Evans, Sarah E. Diamond, Morgan W. Kelly

Faculty Publications

© The Author 2015. Climate change conservation planning relies heavily on correlative species distribution models that estimate future areas of occupancy based on environmental conditions encountered in present-day ranges. The approach benefits from rapid assessment of vulnerability over a large number of organisms, but can have poor predictive power when transposed to novel environments and reveals little in the way of causal mechanisms that define changes in species distribution or abundance. Having conservation planning rely largely on this single approach also increases the risk of policy failure. Mechanistic models that are parameterized with physiological information are expected to be more …

Sixteenth-Century Soil Carbon Sequestration Rates Based On Mexican Land-Grant Documents, Andrew Sluyter, Richard Hunter

Faculty Publications

A significant gap in our understanding of global change involves the linkages between historical land-use and land-cover change (LULCC), Holocene terrestrial carbon (C) pool fluxes, and climate change. To address that research problem, this method uses land grants for sheep ranches awarded in early colonial (1521–1620 CE) Mexico to quantify the amount of land converted from cropland to pastureland. Soil is the largest terrestrial C pool, and converting cropland to pastureland significantly increases soil C sequestration rates, thereby reducing atmospheric C. The land grants and associated archival documents contain location-specific information about soils, vegetation, hydrology, and other variables that make …

Assessing The Carbon Impacts Of Colby College’S Biomass Plant, Alice Hotopp

Honors Theses

Biomass energy plants are considered to be carbon neutral systems under some definitions. However, this concept of carbon neutrality needs to be rethought in order to understand the true carbon impact of biomass plants upon global climate change. A biomass plant’s wood source, the extent to which the biomass plant emits carbon dioxide, and the timescale over which the biomass plant emits carbon should all be taken into account. In this study, I consider the Colby College biomass plant’s role in carbon cycling. Colby’s Physical Plant Department provided me with information on how much carbon (tons of woodchips) is used …

Increased Seed Consumption By Biological Control Weevil Tempers Positive Co2 Effect On Invasive Plant (Centaurea Diffusa) Fitness, Justin L. Reeves, Dana M. Blumenthal, Julie A. Kray, Justin D. Derner

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Predicted increases in atmospheric CO₂ and temperature may benefit some invasive plants, increasing the need for effective invasive plant management. Biological control can be an effective means of managing invasive plants, but the anticipated range in responses of plant–insect interactions to climate change make it difficult to predict how effective biological control will be in the future. Field experiments that manipulate climate within biological control systems could improve predictive power, but are challenging to implement and therefore rare to date. Here, we show that free air CO₂ enrichment in the field increased the fitness of Centaurea diffusa Lam., …