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Climate change

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Articles 2191 - 2220 of 2727

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The Agricultural Model Intercomparison And Improvement Project (Agmip): Protocols And Pilot Studies, Cynthia Rosenzweig, J. W. Jones, J. L. Hatfield, A. C. Ruane, K. J. Boote, P. Thornburn, J. M. Antle, G. C. Nelson, C. Porter, S. Janssen, S. Asseng, B. Basso, F. Ewert, D. Wallach, G. Baigorria, J. M. Winter Jan 2013

The Agricultural Model Intercomparison And Improvement Project (Agmip): Protocols And Pilot Studies, Cynthia Rosenzweig, J. W. Jones, J. L. Hatfield, A. C. Ruane, K. J. Boote, P. Thornburn, J. M. Antle, G. C. Nelson, C. Porter, S. Janssen, S. Asseng, B. Basso, F. Ewert, D. Wallach, G. Baigorria, J. M. Winter

School of Natural Resources: Faculty Publications

The Agricultural Model Intercomparison and Improvement Project (AgMIP) is a major international effort linking the climate, crop, and economic modeling communities with cutting-edge information technology to produce improved crop and economic models and the next generation of climate impact projections for the agricultural sector. The goals of AgMIP are to improve substantially the characterization of world food security due to climate change and to enhance adaptation capacity in both developing and developed countries. Analyses of the agricultural impacts of climate variability and change require a transdisciplinary effort to consistently link state-of-the-art climate scenarios to crop and economic models. Crop model …

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A Future Submerged: Implications Of Sea Level Rise For South Florida, Giselle Peruyera Jan 2013

A Future Submerged: Implications Of Sea Level Rise For South Florida, Giselle Peruyera

Florida A & M University Law Review

No abstract provided.

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Synergistic Effects Of The Invasive Chinese Tallow (Triadica Sebifera) And Climate Change On Aquatic Amphibian Survival, Daniel Saenz, Erin M. Fucik, Matthew Kwiatkowski Jan 2013

Synergistic Effects Of The Invasive Chinese Tallow (Triadica Sebifera) And Climate Change On Aquatic Amphibian Survival, Daniel Saenz, Erin M. Fucik, Matthew Kwiatkowski

Faculty Publications

Changes in climate and the introduction of invasive species are two major stressors to amphibians, although little is known about the interaction between these two factors with regard to impacts on amphibians. We focused our study on an invasive tree species, the Chinese tallow (Triadica sebifera), that annually sheds its leaves and produces leaf litter that is known to negatively impact aquatic amphibian survival. The purpose of our research was to determine whether the timing of leaf fall from Chinese tallow and the timing of amphibian breeding (determined by weather) influence survival of amphibian larvae. We simulated a …

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Factors Determining Mortality Of Adult Chaparral Shrubs In An Extreme Drought Year In California, William A. S. Paddock Iii, Stephen D. Davis, R. Brandon Pratt, Anna L. Jacobsen, Michael F. Tobin, Jorge López-Portillo, Frank W. Ewers Jan 2013

Factors Determining Mortality Of Adult Chaparral Shrubs In An Extreme Drought Year In California, William A. S. Paddock Iii, Stephen D. Davis, R. Brandon Pratt, Anna L. Jacobsen, Michael F. Tobin, Jorge López-Portillo, Frank W. Ewers

Aliso: A Journal of Systematic and Floristic Botany

We measured dieback and mortality in a chaparral shrub community at a chaparral/desert ecotone following four years of below-average rainfall. Ecotones are important systems in which to examine plant and community responses to extreme and prolonged drought conditions and the potential impact of global change on plant distributions and community composition. Following a particularly severe drought year, dieback and mortality were documented for seven co-dominant shrub species. We examined whether mortality was related to species ecology, leaf traits, or water relations. Dieback and mortality were greatest in two non-sprouting species. These species also had high xylem cavitation resistance and low …

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Old Dominion University Climate Change And Sea Level Rise Initiative, Winter 2013, Larry P. Atkinson (Editor) Jan 2013

Old Dominion University Climate Change And Sea Level Rise Initiative, Winter 2013, Larry P. Atkinson (Editor)

CCSLRI Newsletters

Winter 2013 Newsletter of the Old Dominion University Climate Change and Sea Level Rise Initiative

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Land Use And Climate Change: Lawyers Negotiating Above Regulation, John R. Nolon Jan 2013

Land Use And Climate Change: Lawyers Negotiating Above Regulation, John R. Nolon

Elisabeth Haub School of Law Faculty Publications

Sea level rise requires a new paradigm for controlling the development of coastal lands that are in harm’s way, calling for adjustments in the law, legal practice, and legal education. This article discusses the historical tendency of the law to adjust to changes in society and the recent emergence of new legal institutions and strategies for mitigating and adapting to climate change, particularly sea level rise. It illustrates how the lack of certainty about the extent and pace of sea level rise collides with the total takings doctrine of the Lucas case to frustrate the application of traditional land use …

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Critical Research Needs For Successful Food Systems Adaptation To Climate Change, Michelle Miller, Molly Anderson, Charles A. Francis, Chad Kruger, Carol Barford, Jacob Park, Brent H. Mccown Jan 2013

Critical Research Needs For Successful Food Systems Adaptation To Climate Change, Michelle Miller, Molly Anderson, Charles A. Francis, Chad Kruger, Carol Barford, Jacob Park, Brent H. Mccown

Department of Agronomy and Horticulture: Faculty Publications

There is a growing sense of the fragility of agricultural production in the Global North and South and of increasing risks to food security, as scientific observations confirm significant changes in the Gulf Stream, polar ice, atmospheric CO2, methane release, and other measures of climate change. This sense is heightened as each of us experiences extreme weather, such as the increasing frequency of droughts, floods, unseasonal temperatures, and erratic seasonality. The central research challenge before us is how global, national, regional, and local food systems may adapt to accelerating climate change stresses and uncertainties to ensure the availability, …

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Effects Of Water-Level Management On Nesting Success Of Common Loons, Steve K. Windels, Erik A. Beever, James D. Paruk, Aleya R. Brinkman, Jennifer E. Fox, Cory C. Macnulty, David C. Evers, Lori S. Siegel, Douglas C. Osborne Jan 2013

Effects Of Water-Level Management On Nesting Success Of Common Loons, Steve K. Windels, Erik A. Beever, James D. Paruk, Aleya R. Brinkman, Jennifer E. Fox, Cory C. Macnulty, David C. Evers, Lori S. Siegel, Douglas C. Osborne

United States National Park Service: Publications

Water-level management is widespread and illustrates how contemporary climate can interact directly and indirectly with numerous biological and abiotic factors to influence reproductive success of wildlife species. We studied common loons, an iconic waterbird sensitive to timing and magnitude of waterlevel changes during the breeding season, using a before-after-control-impact design on large lakes in Voyageurs National Park (Minnesota, USA), to assess the effect of anthropogenic changes in hydroregime on their nesting success and productivity. We examined multiple competing a priori hypotheses in an information-theoretic framework, and predicted that magnitude of changes in loon productivity would be greater in the Namakan …

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Sex Ratios Of Juvenile Green Turtles (Chelonia Mydas) In Three Developmental Habitats Along The Coast Of Florida, Cheryl Sanchez Jan 2013

Sex Ratios Of Juvenile Green Turtles (Chelonia Mydas) In Three Developmental Habitats Along The Coast Of Florida, Cheryl Sanchez

Electronic Theses and Dissertations

The concept of temperature dependent sex determination (TSD) has been somewhat of an evolutionary enigma for many decades and has had increased attention with the growing predictions of a changing climate, particularly in species that are already threatened or endangered. TSD taxa of concern include marine turtles, which go through various life stages covering a range of regions. This, in turn, creates difficulties in addressing basic demographic questions. Secondary sex ratios (from life stages post-hatchling) were investigated by capturing juvenile green turtles (Chelonia mydas), 22.6-60.9 cm in straight carapace length (SCL), from three developmental areas along the east coast of …

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Red China Going Green: The Emergence And Current Development Of Carbon Emissions Trading In The World's Largest Carbon Emitter, Xiaotang Wang Jan 2013

Red China Going Green: The Emergence And Current Development Of Carbon Emissions Trading In The World's Largest Carbon Emitter, Xiaotang Wang

Sabin Center for Climate Change Law

This paper focuses on one of China’s efforts to engage with climate change—the establishment and development of carbon emissions trading schemes (ETSs) in the country. Section II examines the shift from command and control approaches to market mechanisms in China’s climate policy over the past two decades, which primed the domestic scene for the emergence of carbon emissions trading. Section III studies the seven regional ETS pilots due to launch later this year, the success or failure of which will to a large extent determine the future of carbon markets in not only China, but most likely the rest of …

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Environmental Law/Environmental Literature, Michael Burger Jan 2013

Environmental Law/Environmental Literature, Michael Burger

Sabin Center for Climate Change Law

What, is truly "environmental" about environmental law? This Article is the first attempt to answer this question by integrating Law & Literature scholarship with the study of environmental law. I argue that competing narratives of nature and culture common to the American environmental imagination play a more significant role in environmental law and litigation than previously acknowledged. These competing narratives, communicated through a known set of environmental stories and tropes, are used by attorneys to establish, frame, narrate and argue their cases, and they are absorbed, reimagined, reframed and retold by judges in their written opinions, making environmental law a …

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International Law In The Anthropocene: Responding To The Geoengineering Challenge, Karen N. Scott Jan 2013

International Law In The Anthropocene: Responding To The Geoengineering Challenge, Karen N. Scott

Michigan Journal of International Law

From The Odyssey to The Tempest and beyond, the control and deliberate manipulation of the weather constitutes an enduring and universal theme in myth and literature. In the twenty-first century, it is scientists and engineers rather than authors and artists who dream of weather and climate control, and their story, as described by James Rodger Fleming, "is not, in essence, a heroic saga about new scientific discoveries that can save the planet, as many of the participants claim, but a tragicomedy of overreaching, hubris, and self-delusion." This notwithstanding, the argument that we should deliberately manipulate earth systems and natural processes …

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The Increasing Privatization Of Environmental Permitting, Jessica Owley Jan 2013

The Increasing Privatization Of Environmental Permitting, Jessica Owley

Articles

No abstract provided.

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Modeling The Ecological Niche Of The Nigeria-Cameroon Chimpanzee Under Climate Change, Paul Ryan Sesink Clee Jan 2013

Modeling The Ecological Niche Of The Nigeria-Cameroon Chimpanzee Under Climate Change, Paul Ryan Sesink Clee

Legacy Theses & Dissertations (2009 - 2024)

Ecological niche theory states that a set of environmental conditions exists that a species relies upon in order to survive and reproduce. Collectively, these variables define a species' niche, which includes a species' dispersal abilities and its range. Ecological niche modeling predicts the distributions of species by using information from environmental variables across geographic space, making it a valuable tool for studying how environment affects population dynamics. With accurate species presence data and geospatial information that describe its known habitat, ENMs can effectively map a species' realized niche across geographical space, and for closely related taxa, be used to understand …

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What To Eat Now? Shifts In Polar Bear Diet During The Ice-Free Season In Western Hudson Bay, Linda J. Gormezano, Robert F. Rockwell Jan 2013

What To Eat Now? Shifts In Polar Bear Diet During The Ice-Free Season In Western Hudson Bay, Linda J. Gormezano, Robert F. Rockwell

Publications and Research

Under current climate trends, spring ice breakup in Hudson Bay is advancing rapidly, leaving polar bears (Ursus maritimus) less time to hunt seals during the spring when they accumulate the majority of their annual fat reserves. For this reason, foods that polar bears consume during the ice-free season may become increasingly important in alleviating nutritional stress from lost seal hunting opportunities. Defining how the terrestrial diet might have changed since the onset of rapid climate change is an important step in understanding how polar bears may be reacting to climate change. We characterized the current terrestrial diet of polar bears …

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South Africa's Electricity Crisis: The Need To Reconcile Environmental Policy Decisions With International Treaties, Brittany D. Botterill Jan 2013

South Africa's Electricity Crisis: The Need To Reconcile Environmental Policy Decisions With International Treaties, Brittany D. Botterill

San Diego Journal of Climate & Energy Law

This Comment examines whether South Africa’s treaty obligations conflict with the requirement of the country’s government to provide electricity to a burgeoning home-owning population. Section II introduces Eskom, South Africa’s largest utility company, which produces most of the electricity used in South Africa and surrounding countries. Section III discusses South Africa’s role in the Southern Africa Power Pool and the additional obligations this membership places on the country. Section IV then examines the controversial loan that South Africa received from the World Bank to assist in building the Medupi coal-fired power plant. Section V illustrates South Africa’s climate change obligations …

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Ice-Age Megafauna In Arctic Alaska: Extinction, Invasion, Survival, Daniel H. Mann, Pamela Groves, Michael L. Kunz, Richard E. Reanier, Benjamin V. Gaglioti Jan 2013

Ice-Age Megafauna In Arctic Alaska: Extinction, Invasion, Survival, Daniel H. Mann, Pamela Groves, Michael L. Kunz, Richard E. Reanier, Benjamin V. Gaglioti

United States Geological Survey: Staff Publications

Radical restructuring of the terrestrial, large mammal fauna living in arctic Alaska occurred between 14,000 and 10,000 years ago at the end of the last ice age. Steppe bison, horse, and woolly mammoth became extinct, moose and humans invaded, while muskox and caribou persisted. The ice age mega fauna was more diverse in species and possibly contained 6x more individual animals than live in the region today. Mega faunal biomass during the last ice age may have been 30x greater than present. Horse was the dominant species in terms of number of individuals. Lions, short-faced bears, wolves, and possibly grizzly …

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Investigation Of Media Ingredients And Water Sources For Algae Co2 Capture At Different Scales To Demonstrate The Correlations Between Lab-Scale And Large-Scale Growth, Tabitha Graham Jan 2013

Investigation Of Media Ingredients And Water Sources For Algae Co2 Capture At Different Scales To Demonstrate The Correlations Between Lab-Scale And Large-Scale Growth, Tabitha Graham

Theses and Dissertations--Biosystems and Agricultural Engineering

As energy use increases globally the environmental burdens increase alike. Many accusations have been made that carbon dioxide is a culprit of climate change. The University of Kentucky and Duke Energy Power have partnered to test carbon capture technology in a large scale project. To this end, the objective of this thesis is to investigate potential water media sources and nutrient sources at different volume scales for algae cultivation to help create a more environmentally viable and economically feasible solution. This work will conduct a life cycle assessment of water media sources and the effects of the inputs and outputs …

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Carbon Life-Cycle And Economic Analysis Of Forest Carbon Sequestration And Woody Bioenergy Production, Prativa Shrestha Jan 2013

Carbon Life-Cycle And Economic Analysis Of Forest Carbon Sequestration And Woody Bioenergy Production, Prativa Shrestha

Theses and Dissertations--Forestry and Natural Resources

Sequestering carbon in standing biomass, using woody bioenergy, and using woody products are the three potential ways to utilize forests in reducing greenhouse gases (GHGs) and mitigating climate change. These forestry related strategies are, however, greatly influenced by the existing markets and market based policies. This study focuses on the first two forest strategies. It investigates the combined impact of carbon and woody bioenergy markets on two different types of forests in the US – oak dominated mixed hardwood forests in the Central Hardwood Forests Region and loblolly pine forests in the southeastern US. A modification of the Harman model …

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From “Food Miles” To “Moneyball”: How We Should Be Thinking About Food And Climate, Bret C. Birdsong Jan 2013

From “Food Miles” To “Moneyball”: How We Should Be Thinking About Food And Climate, Bret C. Birdsong

Scholarly Works

Since Michael Pollan popularized the push to eat local food in his bestseller, The Omnivore’s Dilemma, the concept of “food miles” has been something of a rallying cry and an organizing principle in the marketing of the local food movement. Among locavores and their sympathizers, the term seems to encapsulate all that is wrong with the food system. Fresh grapes from Chile make their way to supermarkets from Maine to Minnesota, and even California. Major food conglomerates process commodity ingredients like corn, soy, and wheat into packaged food that travels across the country and across oceans before landing on …

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Good Policy, Good Food: Bringing A Just And Sustainable Food System To All, Mark Winne Jan 2013

Good Policy, Good Food: Bringing A Just And Sustainable Food System To All, Mark Winne

Florida A & M University Law Review

No abstract provided.

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Changes In Net Ecosystem Production Over The Past 40 Years In Arctic Tundra Ponds Near Barrow, Alaska: Application Of Historic And Modern Techniques, Nickole Ann Miller Jan 2013

Changes In Net Ecosystem Production Over The Past 40 Years In Arctic Tundra Ponds Near Barrow, Alaska: Application Of Historic And Modern Techniques, Nickole Ann Miller

Open Access Theses & Dissertations

Arctic environments have gained interest recently due to their sensitivity to climate change. As warming has created longer growing seasons, extended ice-free periods as well as permafrost thaw, the production in freshwater ecosystems has the potential to be greatly impacted. It is hypothesized that as climate change and warming occurs, increases in primary production will occur and ponds will become carbon sinks. Net ecosystem production (NEP) was determined using phytoplankton and periphyton samples collected weekly during the growing season (June - August) from arctic tundra ponds near Barrow, Alaska. Enrichment with 14C was used to determine both weekly photosynthetic rates …

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Climate As Assemblage: Imagining An Ecological Metaphysic, Andrea Rae Gammon Jan 2013

Climate As Assemblage: Imagining An Ecological Metaphysic, Andrea Rae Gammon

Graduate Student Theses, Dissertations, & Professional Papers

Human interventions have resulted in striking changes to the global climate. I work from the understanding of anthropogenic climate change as the product of 250 years of emissions brought about through industrialization and continued by our fossil fuel economies and lifestyles. The instrumentalism of such activities can be traced back to our modern metaphysic, where inanimate matter becomes object and falls away from ‘man,’ the knowing, active subject. In this thesis, I specifically address how this division of passive object from active subject pervades our understanding of climate and conditions the ethics of our human responses to climate change. I …

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Ecophysiological Responses Of Tall Fescue Genotypes To Endophyte Infection And Climate Change, Marie Bourguignon Jan 2013

Ecophysiological Responses Of Tall Fescue Genotypes To Endophyte Infection And Climate Change, Marie Bourguignon

Theses and Dissertations--Plant and Soil Sciences

Tall fescue is a widely used forage grass in the eastern USA and can form a symbiosis with a fungal endophyte, which can be beneficial for the plant but can cause livestock health issues. Little is known regarding the symbiotic response to predicted climate change. To address this knowledge gap, I analyzed tall fescue variety trial data collected throughout the U.S., exploring relationships between climate variables and yield for two different fescue cultivars that were either endophyte-free or infected. This study showed no endophyte or cultivar effect on fescue yield, but identified temperature, precipitation and location as significant predictors of …

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Climate Change Reduces The Net Sink Of Ch4 And N2O In A Semiarid Grassland, Feike A. Dijkstra, Jack A. Morgan, Ronald F. Follett, Daniel R. Lecain Jan 2013

Climate Change Reduces The Net Sink Of Ch4 And N2O In A Semiarid Grassland, Feike A. Dijkstra, Jack A. Morgan, Ronald F. Follett, Daniel R. Lecain

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

Atmospheric concentrations of methane (CH4) and nitrous oxide (N2O) have increased over the last 150 years because of human activity. Soils are important sources and sinks of both potent greenhouse gases where their production and consumption are largely regulated by biological processes. Climate change could alter these processes thereby affecting both rate and direction of their exchange with the atmosphere. We examined how a rise in atmospheric CO2 and temperature affected CH4 and N2O fluxes in a well-drained upland soil (volumetric water content ranging between 6% and 23%) in a semiarid grassland …

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Relating Climate Change To The Nesting Phenology And Nest Environment Of Marine Turtles, Monette Schwoerer Jan 2013

Relating Climate Change To The Nesting Phenology And Nest Environment Of Marine Turtles, Monette Schwoerer

Electronic Theses and Dissertations

Ectotherms (including marine turtles) being especially sensitive to climate, are at risk to the accelerated rate of human-driven climate change. This study addresses two concerns associated with marine turtles and climate change – the relationship between the timing of marine turtle nesting and sea surface temperature; and the concern over the feminization of marine turtle populations due to rising sand temperatures. Previous studies of loggerhead sea turtles (Caretta caretta) and green sea turtles (Chelonia mydas) have documented the relationship between sea surface temperatures and nesting phenology. Earlier nesting behaviors in both species have been associated with warmer sea surface temperatures. …

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Improving Operational Land Surface Model Canopy Evapotranspiration In Africa Using A Direct Remote Sensing Approach, M. Marshall, K. Tu, C. Funk, J. Michaelsen, P. Williams, Christopher A. Williams, J. Ardö, M. Boucher, B. Cappelaere, A. De Grandcourt, A. Nickless, Y. Nouvellon, R. Scholes, W. Kutsch Jan 2013

Improving Operational Land Surface Model Canopy Evapotranspiration In Africa Using A Direct Remote Sensing Approach, M. Marshall, K. Tu, C. Funk, J. Michaelsen, P. Williams, Christopher A. Williams, J. Ardö, M. Boucher, B. Cappelaere, A. De Grandcourt, A. Nickless, Y. Nouvellon, R. Scholes, W. Kutsch

Geography

Climate change is expected to have the greatest impact on the world's economically poor. In the Sahel, a climatically sensitive region where rain-fed agriculture is the primary livelihood, expected decreases in water supply will increase food insecurity. Studies on climate change and the intensification of the water cycle in sub-Saharan Africa are few. This is due in part to poor calibration of modeled evapotranspiration (ET), a key input in continental-scale hydrologic models. In this study, a remote sensing model of transpiration (the primary component of ET), driven by a time series of vegetation indices, was used to substitute transpiration from …

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Soil Enzyme Activities During The 2011 Texas Record Drought/Heatwave And Implications To Biogeochemical Cycling And Organicmatter Dynamics, Veronica Acosta-Martinez, Jennifer Moore-Kucera, Jon Cotton, T. Gardner, David Wester Jan 2013

Soil Enzyme Activities During The 2011 Texas Record Drought/Heatwave And Implications To Biogeochemical Cycling And Organicmatter Dynamics, Veronica Acosta-Martinez, Jennifer Moore-Kucera, Jon Cotton, T. Gardner, David Wester

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

Extreme droughts and heat waves due to climate change may have permanent consequences on soil quality and functioning in agro ecosystems. During November 2010 to August 2011, the Southern High Plains (SHP) region of Texas, U.S., a large cotton producing area, received only 39.6 mm of precipitation(vs. the historical avg. of 373 mm) and experienced the hottest summer since record keeping began in 1911. Several enzyme activities (EAs) important in biogeochemical cycling were evaluated in two soils (a loam and a sandy loam at 0–10 cm) with a management history of monoculture (continuous cotton) or rotation (cotton and sorghum or …

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Technology Transfer And Dissemination Under The Unfccc: Achievements And New Perspectives, Stéphanie Chuffart Jan 2013

Technology Transfer And Dissemination Under The Unfccc: Achievements And New Perspectives, Stéphanie Chuffart

Sabin Center for Climate Change Law

Response to climate change will critically depend on the cost, performance, and availability of technologies that can lower emissions, mitigate, and adapt to climate change. Technological innovation can furthermore lower the cost of achieving environmental objectives. However, data from the United Nations Framework Convention on Climate Change (UNFCCC) Subsidiary Body for Scientific and Technological Advice flag that although issues of technology transfer have been central to the UNFCCC since the negotiation of the Convention, there is still an urgent need for effective environmental technology diffusion. Building upon lessons learned from technology transfer activities under the Clean Development Mechanism and the …

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Four Questions About Fracking, Thomas W. Merrill Jan 2013

Four Questions About Fracking, Thomas W. Merrill

Faculty Scholarship

It is difficult to think of a more timely or important topic than horizontal hydraulic fracturing and its impact on the environment. It is especially useful to have an exchange of views on this subject now, before the statutes, regulations, and court decisions start to roll in. Law professors – I cannot speak for anyone else – have a strong proclivity for backward-looking analysis, dissecting what should have been done after the basic direction of the law is set and the courts have spoken. It is much more useful to weigh the pros and cons of different approaches at an …

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