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Articles 361 - 390 of 1680
Full-Text Articles in Physical Sciences and Mathematics
Mitigating Emissions Associated With The Production Of Traded Goods, Dan André Quirapas, Brian Irvyn Chan, Albert E. Lamberte, Maria Zunally Rapada, Krista Danielle Yu
Mitigating Emissions Associated With The Production Of Traded Goods, Dan André Quirapas, Brian Irvyn Chan, Albert E. Lamberte, Maria Zunally Rapada, Krista Danielle Yu
Angelo King Institute for Economic and Business Studies (AKI)
The environmental impact of international trade is a concerning issue in the fight against climate change. Trade liberalization—combined with globally fragmented environmental policies—is often associated with the formation of pollution havens. This is because trade enables emissions leakages, which is defined as the outsourcing of emissions-intensive production to countries with weaker environmental regulations. Therefore, literature on this subject has suggested that a globally coordinated policy response is necessary to mitigate the impact of trade on climate change (Aichele & Felbermayr, 2012; Ben-David et al., 2020; Felbmermayr & Peterson, 2020). However, some studies have found that unilateral policy actions have no …
First Person, Colby College, Lokesh Todi
Breeding And Feeding Habitat Selection By An Island Endemic Bird May Increase Its Vulnerability To Climate Change, Paul M. Radley, Eddie J. B. Van Etten, David Blake, Robert A. Davis
Breeding And Feeding Habitat Selection By An Island Endemic Bird May Increase Its Vulnerability To Climate Change, Paul M. Radley, Eddie J. B. Van Etten, David Blake, Robert A. Davis
Research outputs 2014 to 2021
Characterizing patterns of habitat use is an important first step for effective conservation planning. Species restricted to low-lying islands are at greatest risk from climate change-related sea level rise, and requirements for breeding and foraging habitat may determine their risk from tidal inundation. The endangered Micronesian Scrubfowl (Megapodius laperouse senex) is a model species for understanding these impacts. This species faces the cumulative challenges of tourist visitation, invasive species, and rising sea levels, yet little is understood about its habitat use in the Rock Islands Southern Lagoon Conservation Area (RISL) of Palau. We studied the habitat requirements of this mound-nesting …
Decarbonisation – Origins And Evolution Of The Process On The European Level, Sylwia Jarosławska-Sobór
Decarbonisation – Origins And Evolution Of The Process On The European Level, Sylwia Jarosławska-Sobór
Journal of Sustainable Mining
Decarbonisation of the european economy is one of the most important megatrends that will shape economic and social development in the coming years. This paper discusses the basic concepts of decarbonisation in terms of climate change, the history of this idea development and the legal basis introduced in the European Union, including key European documents and tools influencing the process, like ETS or CO2 emission allowances. Background on decarbonisation has been presented as a European roadmap to achieve a low-carbon economy in Europe. In the article the main assumptions of the EU strategy papers like Clean Energy for All Europeans …
Interspecific And Local Variation In Tern Chick Diets Across Nesting Colonies In The Gulf Of Maine, Keenan Yakola, Adrian Jordaan, Stephen Kress, Paula Shannon, Michelle D. Staudinger
Interspecific And Local Variation In Tern Chick Diets Across Nesting Colonies In The Gulf Of Maine, Keenan Yakola, Adrian Jordaan, Stephen Kress, Paula Shannon, Michelle D. Staudinger
United States Geological Survey: Staff Publications
The Gulf of Maine, USA is home to four colonial co-nesting tern species: Least Tern (Sternula antillarum), Common Tern (Sterna hirundo), Arctic Tern (Sterna paradisaea), and the federally endangered Roseate Tern (Sterna dougallii). Over three decades of visual observations of chick provisioning were compiled for a comparative dietary study in the region, including the first detailed descriptions of Least and Roseate Tern chick diets. Three prey groups comprised the majority of chick diets among tern species between 1986–2017: hake (Urophycis spp. or Enchelyopus cimbrius) 28–37% frequency of occurrence (FO), sand lance …
Bolstering Juliana: Enforceability Of Environmental Claims Through International Treaty Obligations In U.S. Courts, Lindsey Laielli
Bolstering Juliana: Enforceability Of Environmental Claims Through International Treaty Obligations In U.S. Courts, Lindsey Laielli
St. Mary's Law Journal
Abstract forthcoming.
The Effect Of Climate Change On The Water Reserve In Wadi Of Hadhramout, Jamal A. Abbad, Khaled S. Bawahidi, Mohamed A. Bawadi
The Effect Of Climate Change On The Water Reserve In Wadi Of Hadhramout, Jamal A. Abbad, Khaled S. Bawahidi, Mohamed A. Bawadi
Hadhramout University Journal of Natural & Applied Sciences
This research aims to study the reality of the impact of climate change on water resources in Wadi (valley) of Hadhramout, as this region is exposed to the impacts of climate change on groundwater resources, through the effects on rainfall and surface water supplies. Climate change is a global phenomenon affecting water resources, so it is necessary to study its impact, specifically on the water reserve in wadi of Hadhramout. from this point of view this problem was taken into account in our study in terms of the possibility of maintaining the balance of water reserves in the study area. …
Participatory Management Of Rangeland Hydrology – A New Socio-Ecological Technology To Effectively Adapt To And Mitigate Climate Change: Case From Morocco, Lhoussaine Bouchaou, El Hassane El Mahdad, El Hassan Beraaouz, Abdelfettah Sifeddine, Alessandro Rizzo, Mohamed Hssaisoune, Hanane Reddad, Abdelghani Chehbouni, Elisabeth Huber-Sannwald
Participatory Management Of Rangeland Hydrology – A New Socio-Ecological Technology To Effectively Adapt To And Mitigate Climate Change: Case From Morocco, Lhoussaine Bouchaou, El Hassane El Mahdad, El Hassan Beraaouz, Abdelfettah Sifeddine, Alessandro Rizzo, Mohamed Hssaisoune, Hanane Reddad, Abdelghani Chehbouni, Elisabeth Huber-Sannwald
IGC Proceedings (1993-2023)
Morocco’s drylands cover over 90% of the land area; low and irregular rainfall and high potential evaporation contribute to extremely high-water deficits. These phenomena have greatly impacted rangeland hydrology and nomadic and transhumant pastoralism. To adapt to this predominant water deficit, the inhabitants of these areas have developed two forms of lifestyles, which include household and livestock mobility: (i) a pendulum movement for seasonal transhumance between the mountains and their bordering plains; and (ii) random nomadic mobility regulated by the sporadic frequency of rains and thus water availability. In both cases, this mobility is controlled by the degree of development …
Producing Useful Knowledge For Sustainable Development, K. A. Galvin
Producing Useful Knowledge For Sustainable Development, K. A. Galvin
IGC Proceedings (1993-2023)
Africa makes a relatively minor contribution to global greenhouse gas emissions compared with developed nations, yet the African continent will be increasingly vulnerable to climate change processes in the coming decades. Critical challenges include meeting basic needs for food, water, shelter, and other necessities without undermining biodiversity and ecosystem services. Coordination efforts to address multiple global change related stressors has generally occurred at the national level and taken an external approach, with national governments favoring collaboration with foreign-based NGOs and other international institutions. However, the involvement of actors at the local level correlates with decisions that are better adapted to …
Climate Change Policy Narratives And Pastoralist Predicaments In The Horn Of Africa: Insights From Ethiopia And Kenya, T. Campbell
Climate Change Policy Narratives And Pastoralist Predicaments In The Horn Of Africa: Insights From Ethiopia And Kenya, T. Campbell
IGC Proceedings (1993-2023)
Drawing on the findings of a two-country case study, this paper examines the discourses and narratives found in contemporary climate change and national development policy in Ethiopia and Kenya, the actors shaping those policy narratives, and in turn, their consequences for pastoralism. The research reveals that while concerns around climate change and calls for strengthening resilience of dryland communities have given a new impetus to pastoral development, old arguments and assumptions that depict pastoral areas, and pastoralists, as unproductive and in need of modernisation remain deeply embedded in policy making. These open up spaces for the state, investors, and local …
Effect Of Drought Stress On Fibre Digestibility Of Corn For Silage, G. Ferreira, C. L. Teets, A. M. Kingori, J. O. Ondiek
Effect Of Drought Stress On Fibre Digestibility Of Corn For Silage, G. Ferreira, C. L. Teets, A. M. Kingori, J. O. Ondiek
IGC Proceedings (1993-2023)
Limited information exists about the impact of drought stress on corn silage digestibility. The objective of this study was to determine the effect of irrigation on in situ NDF digestibility of corn tissues grown under controlled conditions in a greenhouse. Five commercial corn hybrids were planted in pots and grown in a greenhouse. Pots were subjected to an abundant or restricted irrigation regime. Leaf blades and stem internodes were collected from the upper and bottom portion of each hybrid. Tissue samples were incubated in the rumen of 3 rumen-cannulated cows for 0, 3, 6, 12, 24, 48, 96, and 240 …
Risk Of Climate-Related Impacts On Global Rangelands – A Review And Modelling Study, C. M. Godde, R. B. Boone, A. Ash, K. Waha, L. Sloat, P. Thornton, D. Mason-D’Croz, D. Mayberry, M. Herrero
Risk Of Climate-Related Impacts On Global Rangelands – A Review And Modelling Study, C. M. Godde, R. B. Boone, A. Ash, K. Waha, L. Sloat, P. Thornton, D. Mason-D’Croz, D. Mayberry, M. Herrero
IGC Proceedings (1993-2023)
Climate change threatens the ability of global rangelands to provide food, support livelihoods and deliver important ecosystems services. The extent and magnitude of potential impacts are however poorly understood. In this study, we review the risk of climate impacts along the rangeland systems food supply chain. We also present results from biophysical modelling simulations and spatial data analyses to identify where and to what extent rangelands may be at climatic risk. Although a quantification of the net impacts of climate change on rangeland production systems is beyond the reach of our current understanding, there is strong evidence that there will …
Exploring Water Use And Production Dynamics Of Indigenous Protected Sikumi Forest In South Western Zimbabwe, O. Gwate
IGC Proceedings (1993-2023)
Monitoring changes in carbon and water vapour fluxes over a landscape helps in understanding ecosystem functioning and improves vegetation management. To understand potential shifts in ecosystem functioning, MoDerate Resolution Imaging Spectroradiometer (MODIS) evapotranspiration (ET), net photosynthesis, gross primary production and net primary production data were explored in Sikumi forest dominated by three species clusters (Teak forest woodland, Miombo woodland and savannah, and Vachellia). Measures of ecosystem stability including water use efficiency (WUE), rainfall use efficiency (RUE), evaporative index, and carbon use efficiency (CUE) were assessed for trends and step changes together with rainfall and evapotranspiration data. Miombo woodland and …
Temperate/Tropical Transition Zones: A Hotspot For Breeding Forages With Climate Resiliency, Kenneth H. Quesenberry, Esteban F. Rios, Kevin E. Kenworthy
Temperate/Tropical Transition Zones: A Hotspot For Breeding Forages With Climate Resiliency, Kenneth H. Quesenberry, Esteban F. Rios, Kevin E. Kenworthy
IGC Proceedings (1993-2023)
Species resiliency to climate change is critical for sustainability of grassland agricultural systems. Transition zones between temperate and tropical climates (between 27 and 31° N and S latitude) with variable annual frost/freeze events have proven to be ideal zones for identification of species with variable climate adaptation. This paper will identify these regions around the globe and show how these regions offer distinct advantages in terms of selection for abiotic and biotic stresses, and thus resiliency to changing climate. Programs located in these regions have the advantage of exposure to alternating extreme warm and cold temperatures, drought and flood conditions, …
Allostratigraphy Of The Lower Colorado Group (Cretaceous) In South-West Alberta, Slavena Galic
Allostratigraphy Of The Lower Colorado Group (Cretaceous) In South-West Alberta, Slavena Galic
Electronic Thesis and Dissertation Repository
Clastic, upper Albian-lower Cenomanian strata were deposited in a low-accommodation backbulge depozone of the Western Canada Foreland Basin in SW Alberta. These strata are lithologically very heterogeneous and encompass a spectrum of depositional environments along an alluvial to offshore transect. These rocks are assigned, in subsurface, to the Lower Colorado Group, and in outcrop to the upper Blairmore Group. Lithological heterogeneity, as a result of rapid lateral facies changes, resulted in diverse nomenclature that obscured genetic relationships between time-equivalent strata. The present study integrates wireline log, core, and outcrop data to establish a high-resolution allostratigraphic framework which allowed recognition of …
Development Of Predictive Models For Water Budget Simulations Of Closed-Basin Lakes: Case Studies Of Lakes Azuei And Enriquillo On The Island Of Hispaniola, Mahrokh Moknatian, Michael Piasecki
Development Of Predictive Models For Water Budget Simulations Of Closed-Basin Lakes: Case Studies Of Lakes Azuei And Enriquillo On The Island Of Hispaniola, Mahrokh Moknatian, Michael Piasecki
Publications and Research
The historical water level fluctuations of the two neighboring Caribbean lakes of Azuei (LA) and Enriquillo (LE) on Hispaniola have shown random periods of synchronous and asynchronous behaviors, with both lakes exhibiting independent dynamics despite being exposed to the same climatic forces and being directly next to each other. This paper examines their systems' main drivers and constraints, which are used to develop numerical models for these two lakes. The water balance approach was employed to conceptually model the lakes on an interannual scale and examine the assumptions of surface and subsurface processes. These assumptions were made based on field …
A Case Study Using 2019 Pre-Monsoon Snow And Stream Chemistry In The Khumbu Region, Nepal, Heather M. Clifford, Mariusz Potocki, Inka Koch, Tenzing Sherpa, Mike Handley, Elena Korotkikh, Douglas Introne, Susan Kaspari, Kimberley Miner, Tom Matthews, Baker Perry, Heather Guy, Ananta Gajurel, Praveen Kumar Singh, Sandra Elvin, Aurora C. Elmore, Alex Tait, Paul A. Mayewski
A Case Study Using 2019 Pre-Monsoon Snow And Stream Chemistry In The Khumbu Region, Nepal, Heather M. Clifford, Mariusz Potocki, Inka Koch, Tenzing Sherpa, Mike Handley, Elena Korotkikh, Douglas Introne, Susan Kaspari, Kimberley Miner, Tom Matthews, Baker Perry, Heather Guy, Ananta Gajurel, Praveen Kumar Singh, Sandra Elvin, Aurora C. Elmore, Alex Tait, Paul A. Mayewski
Geological Sciences Faculty Scholarship
This case study provides a framework for future monitoring and evidence for human source pollution in the Khumbu region, Nepal. We analyzed the chemical composition (major ions, major/trace elements, black carbon, and stable water isotopes) of pre-monsoon stream water (4300–5250 m) and snow (5200–6665 m) samples collected from Mt. Everest, Mt. Lobuche, and the Imja Valley during the 2019 pre-monsoon season, in addition to a shallow ice core recovered from the Khumbu Glacier (5300 m). In agreement with previous work, pre-monsoon aerosol deposition is dominated by dust originating from western sources and less frequently by transport from southerly air mass …
Land, Racial Formations, And Power: Exploring The Network Of Power Relationships During Climate Change Planning In Coastal South Carolina, Teresa Norman
Theses and Dissertations
Climate change projections for the coastline of South Carolina predict that by mid-century there will be around 1.2 feet of sea level rise, and potentially up to 4 feet of rise by 2100. Additionally, climate change is linked to intensified hurricanes, a hazard for the South Carolina coastline every year. Both of these scenarios result in increases in the regularity and severity of coastal flooding, making the threat of permanent or temporary displacement (relocation) from coastal lands a reality. This is a particularly pressing matter for African American communities already made vulnerable by the long history of racial discrimination in …
Satellite-Detected Ammonia Changes In The United States: Natural Or Anthropogenic Impacts, Yaqian He, Rongting Xu, Stephen A. Prior, Di Yang, Anni Yang, Jian Chen
Satellite-Detected Ammonia Changes In The United States: Natural Or Anthropogenic Impacts, Yaqian He, Rongting Xu, Stephen A. Prior, Di Yang, Anni Yang, Jian Chen
United States Department of Agriculture Wildlife Services: Staff Publications
Ammonia (NH3) is the most abundant alkaline component and can react with atmospheric acidic species to form aerosols that can lead to numerous environmental and health issues. Increasing atmospheric NH3 over agricultural regions in the US has been documented. However, spatiotemporal changes of NH3 concentrations over the entire US are still not thoroughly understood, and the factors that drive these changes remain unknown. Herein, we applied the Atmospheric Infrared Sounder (AIRS) monthly NH3 dataset to explore spatiotemporal changes in atmospheric NH3 and the empirical relationships with synthetic N fertilizer application, livestock manure production, and climate factors across the entire US …
Moving On Up: Vertical Distribution Shifts In Rocky Reef Fish Species During Climate-Driven Decline In Dissolved Oxygen From 1995 To 2009, Erin L. Meyer-Gutbrod, Li Kui, Mary Nishimoto, Linda Snook, Milton Love
Moving On Up: Vertical Distribution Shifts In Rocky Reef Fish Species During Climate-Driven Decline In Dissolved Oxygen From 1995 To 2009, Erin L. Meyer-Gutbrod, Li Kui, Mary Nishimoto, Linda Snook, Milton Love
Faculty Publications
Anthropogenic climate change has resulted in warming temperatures and reduced oxygen concentrations in the global oceans. Much remains unknown on the impacts of reduced oxygen concentrations on the biology and distribution of marine fishes. In the Southern California Channel Islands, visual fish surveys were conducted frequently in a manned submersible at three rocky reefs between 1995 and 2009. This area is characterized by a steep bathymetric gradient, with the surveyed sites Anacapa Passage, Footprint and Piggy Bank corresponding to depths near 50, 150 and 300 m. Poisson models were developed for each fish species observed consistently in this network of …
The Impacts Of Mid-Holocene Warming On Water Quality In A Southwestern Ontario Kettle Pond, Morgan E. Peicheff
The Impacts Of Mid-Holocene Warming On Water Quality In A Southwestern Ontario Kettle Pond, Morgan E. Peicheff
Undergraduate Student Research Internships Conference
No abstract provided.
Livestock Diversity And Climate Change In Rangelands, Irene Hoffmann, Beate Scherf, David Boerma
Livestock Diversity And Climate Change In Rangelands, Irene Hoffmann, Beate Scherf, David Boerma
IGC Proceedings (1993-2023)
No abstract provided.
The Variability Of Seawater Carbonate Chemistry In Two Florida Urban Mangrove Ecosystems, Alexandrina R. Rangel
The Variability Of Seawater Carbonate Chemistry In Two Florida Urban Mangrove Ecosystems, Alexandrina R. Rangel
All HCAS Student Capstones, Theses, and Dissertations
Anthropogenic carbon dioxide (CO2) emissions into the atmosphere are yielding serious impacts across the world’s ocean, including ocean acidification, sea level rise, and increasing seawater temperature. However, these changes are not occurring uniformly across all marine ecosystems. Coastal ecosystems, such as mangroves, already experience extreme and variable environmental conditions due to natural biogeochemical and physical processes. The goal of this study was to document small-scale variability in two urban mangrove ecosystems to gain insight into how ocean acidification will manifest within these systems. Using a stand-up paddleboard, a suite of sensors, and traditional bottle sampling techniques, we measured …
Diminishing Opportunities For Sustainability Of Coastal Cities In The Anthropocene: A Review, John W. Day, Joel D. Gunn, Joseph Robert Burger
Diminishing Opportunities For Sustainability Of Coastal Cities In The Anthropocene: A Review, John W. Day, Joel D. Gunn, Joseph Robert Burger
Biology Faculty Publications
The world is urbanizing most rapidly in tropical to sub-temperate areas and in coastal zones. Climate change along with other global change forcings will diminish the opportunities for sustainability of cities, especially in coastal areas in low-income countries. Climate forcings include global temperature and heatwave increases that are expanding the equatorial tropical belt, sea-level rise, an increase in the frequency of the most intense tropical cyclones, both increases and decreases in freshwater inputs to coastal zones, and increasingly severe extreme precipitation events, droughts, freshwater shortages, heat waves, and wildfires. Current climate impacts are already strongly influencing natural and human systems. …
Understanding The Effects Of Climate Change Via Disturbance On Pristine Arctic Lakes—Multitrophic Level Response And Recovery To A 12-Yr, Low-Level Fertilization Experiment, Phaedra Budy, Casey A. Pennock, Anne E. Giblin, Chris Luecke, Daniel L. White, George W. Kling
Understanding The Effects Of Climate Change Via Disturbance On Pristine Arctic Lakes—Multitrophic Level Response And Recovery To A 12-Yr, Low-Level Fertilization Experiment, Phaedra Budy, Casey A. Pennock, Anne E. Giblin, Chris Luecke, Daniel L. White, George W. Kling
Watershed Sciences Student Research
Effects of climate change-driven disturbance on lake ecosystems can be subtle; indirect effects include increased nutrient loading that could impact ecosystem function. We designed a low-level fertilization experiment to mimic persistent, climate change-driven disturbances (deeper thaw, greater weathering, or thermokarst failure) delivering nutrients to arctic lakes. We measured responses of pelagic trophic levels over 12 yr in a fertilized deep lake with fish and a shallow fishless lake, compared to paired reference lakes, and monitored recovery for 6 yr. Relative to prefertilization in the deep lake, we observed a maximum pelagic response in chl a (+201%), dissolved oxygen (DO, −43%), …
Pervasive Changes In Stream Intermittency Across The United States, Kendra E. Kaiser
Pervasive Changes In Stream Intermittency Across The United States, Kendra E. Kaiser
Geosciences Faculty Publications and Presentations
Non-perennial streams are widespread, critical to ecosystems and society, and the subject of ongoing policy debate. Prior large-scale research on stream intermittency has been based on long-term averages, generally using annually aggregated data to characterize a highly variable process. As a result, it is not well understood if, how, or why the hydrology of non-perennial streams is changing. Here, we investigate trends and drivers of three intermittency signatures that describe the duration, timing, and dry-down period of stream intermittency across the continental United States (CONUS). Half of gages exhibited a significant trend through time in at least one of the …
Understanding Potential Climate Change Impacts On Water Resources Within A Fractured Rock Watershed In Northern Togo, Mahawa-Essa Mabossani Akara
Understanding Potential Climate Change Impacts On Water Resources Within A Fractured Rock Watershed In Northern Togo, Mahawa-Essa Mabossani Akara
Dissertations
More than 72% of sub-Saharan Africa land surface is comprised of hard rock with fractured rock aquifers supplying water to an estimated 25% of the rural population. Given low porosity and storativity, fractured rock aquifers are particularly vulnerable to stresses such as projected population growth and climate variability. General circulation models of sub-Saharan Africa predict increases in temperature and in occurrences of extreme precipitation trends, such as flooding and drought. Adaptation strategies that promote optimal uses of water resources have emerged, although, most focus exclusively on surface water resources. This project investigates the potential impact of climate change on surface …
Latest Climate Change Report Is The Most Important By Far, Winston T. L. Chow
Latest Climate Change Report Is The Most Important By Far, Winston T. L. Chow
Research Collection School of Social Sciences
Dr Winston Chow was involved in the recently released IPCC climate science report. He explains why this report communicates the consequences of climate inaction better than previous ones.
Conserving Temperate Grasslands In Australia: Historical Constraints, Future Possibilities, Louise Gilfedder, Ian Lunt, John Morgan, Richard J. Williams
Conserving Temperate Grasslands In Australia: Historical Constraints, Future Possibilities, Louise Gilfedder, Ian Lunt, John Morgan, Richard J. Williams
IGC Proceedings (1993-2023)
No abstract provided.
Quo Vadis Lakes Azuei And Enriquillo: A Future Outlook For Two Of The Caribbean Basin's Largest Lakes, Mahrokh Moknatian, Michael Piasecki
Quo Vadis Lakes Azuei And Enriquillo: A Future Outlook For Two Of The Caribbean Basin's Largest Lakes, Mahrokh Moknatian, Michael Piasecki
Publications and Research
Lakes Azuei (LA) and Enriquillo (LE) on Hispaniola Island started expanding in 2005 and continued to do so until 2016. After inundating large swaths of arable land, submerging a small community, and threatening to swallow a significant trade route between the Dominican Republic and Haiti; worries persisted at how far this seemingly unstoppable expansion would go. The paper outlines the approach to a look forward to answer this question vis-à-vis climate change scenarios developed by the Intergovernmental Panel on Climate Change (IPCC). It uses numerical representations of the two lakes, and it examines how the lakes might evolve, deploying three …