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Articles 391 - 420 of 1680
Full-Text Articles in Physical Sciences and Mathematics
What Spatial Environments Mean, Thora Tenbrink
What Spatial Environments Mean, Thora Tenbrink
Journal of Spatial Information Science
Language is one of the most prominent means of representing human thought. Spatial cognition research has made use of this fact for decades, exploring how humans perceive and understand their spatial environments through language analysis. So far, this research has mainly focused on generic cognitive aspects underlying everyday purposes such as knowing where objects are, how they relate to each other, and how to find one's way to a familiar or unfamiliar location. However, human concepts about space can be threatened by change, as the environment changes. Across the globe, people become increasingly aware of climate-change related threats to their …
Functionalized Ionic Liquids For Improved Co2 Hydrogenation Catalysts, Amol Nanduji Jaybhaye
Functionalized Ionic Liquids For Improved Co2 Hydrogenation Catalysts, Amol Nanduji Jaybhaye
Masters Theses & Specialist Projects
Climate change is one of the biggest problems we are facing today, and anthropogenic greenhouse gases contribute significantly to it. Among greenhouse gasses, carbon dioxide emission is increased drastically and affecting majorly for increasing global temperature, and anything we can do to mitigate carbon dioxide emission will be helpful. A carbon dioxide hydrogenation reaction is a promising technique that can convert carbon dioxide into value-added chemicals, but the reaction rate is slow, and for that, we can use catalysts that will accelerate the reaction rate. Platinum-based nanoparticles have sparked research related to energy and environmental catalysts. Catalytic properties are depending …
Physiological And Molecular Responses Of Eurythermal And Stenothermal Populations Of Zostera Marina L (Eelgrass) To Climate Change, Carmen C. Zayas-Santiago
Physiological And Molecular Responses Of Eurythermal And Stenothermal Populations Of Zostera Marina L (Eelgrass) To Climate Change, Carmen C. Zayas-Santiago
OES Theses and Dissertations
As CO2 levels in Earth’s atmosphere and oceans steadily rise, varying organismal responses may produce ecological losers and winners. Increased ocean CO2 can enhance seagrass productivity and thermal tolerance, providing some compensation for climate warming. However, the consistency of this CO2 effect across populations of cosmopolitan species such as Zostera marina L. (eelgrass) remains largely unknown. This study analyzed whole-plant performance metabolic profiles and gene expression patterns of distinct eelgrass populations in response to CO2 enrichment. Populations were transplanted from Nisqually Landing and Dumas Bay, two cold water environments in Puget Sound, WA (USA) that rarely …
Climate-Induced Stressors To Peace: A Review Of Recent Literature, Ayyoob Sharifi, Dahlia Simangan, Chui Ying Lee, Rose Reyes, Tarek Katramiz, Jairus Carmela C. Josol, Leticia Dos Muchangos, Hassan Virji, Shinji Kaneko, Thea Kersti Tandog, Leorence Tandog, Moinul Islam
Climate-Induced Stressors To Peace: A Review Of Recent Literature, Ayyoob Sharifi, Dahlia Simangan, Chui Ying Lee, Rose Reyes, Tarek Katramiz, Jairus Carmela C. Josol, Leticia Dos Muchangos, Hassan Virji, Shinji Kaneko, Thea Kersti Tandog, Leorence Tandog, Moinul Islam
Environmental Science Faculty Publications
Climate change is increasingly recognized as a threat to global peace and security. This paper intends to provide a better understanding of the nature of interactions between climate change and events that undermine peace through a systematic review of recent literature. It highlights major methodological approaches adopted in the literature, elaborates on the geographic focus of the research at the nexus of climate change and peace, and provides further information on how various climatic stressors, such as extreme temperature, floods, sea-level rise, storms, and water stress may be linked to different events that undermine peace (e.g. civil conflict, crime, intercommunal …
Improving Existing Methods For Calculating Embodied Carbon Emissions In Trade Through Feature Discovery: An Information Theoretic Approach, Sam Morton
Dartmouth College Undergraduate Theses
The continued societal and ecological risks posed by climate change have spurred renewed interest in quantitative tools that can improve policy aimed at climate mitigation. In 2008, international trade accounted for up to 26\% of global anthropogenic emissions, and therefore trade has garnered increased attention from policymakers seeking carbon mitigation. The concept of embodied carbon emissions in trade (EET) quantifies overall carbon emitted in the production and transport of goods for the purposes of trade. EET in theory could prove an indispensable tool to climate-concerned policymakers, but current implementations and data availability limit EET calculation to annual snapshots that extend …
Urban Permaculture For Climate-Resilient Farming In Worcester, Massachusetts, Priyanka Shrestha
Urban Permaculture For Climate-Resilient Farming In Worcester, Massachusetts, Priyanka Shrestha
Sustainability and Social Justice
Climate changes observed over the past several decades are associated with changes in the multiple components of hydrological systems, including changes in precipitation patterns, higher rates of evaporation and increasing soil erosion. In 2019, the city of Worcester declared a climate emergency, stating that climate change threatens the community’s environment. Permaculture can strengthen crucial relationships between nature and human beings, offering long-lasting solutions to protect our planet from risks associated with climate change. This paper focuses on the application of permaculture practices in urban agriculture, including techniques to address changes in hydrological systems. Use of perennial plants, creating swales, drip …
Research On Climate Change In Social Psychology Publications: A Systematic Review, Kim-Pong Kam, Angela K. Y. Leung, Susan Clayton
Research On Climate Change In Social Psychology Publications: A Systematic Review, Kim-Pong Kam, Angela K. Y. Leung, Susan Clayton
Research Collection School of Social Sciences
There is a strong scientific consensus that anthropogenic climate change is happening and that its impacts can put both ecological and human systems in jeopardy. Social psychology, the scientific study of human behaviours in their social and cultural settings, is an important tool for understanding how humans interpret and respond to climate change. In this article, we offered a systematic review of the social psychological literature of climate change. We sampled 130 studies on climate change or global warming from 80 articles published in journals indexed under the “Psychology, social” category of Journal Citation Reports. Based on this sample, …
Social Psychology Of Climate Change In The Asian Context: Introduction To Special Issue, Kim-Pong Tam, Angela K. Y. Leung, Susan Clayton
Social Psychology Of Climate Change In The Asian Context: Introduction To Special Issue, Kim-Pong Tam, Angela K. Y. Leung, Susan Clayton
Research Collection School of Social Sciences
Climate change is one of the biggest challenges facing many countries in the Asia Pacific. Asia as a whole is a primary contributor to carbon emissions. According to the BP Statistical Review of World Energy 2020, the Asia Pacific region alone accounts for more than half of the world’s total greenhouse gas emissions. This represents an increase in consumption of oil, gas, and coal in Asia Pacific from 44.5% in 2009 to 50.5% in 2019. According to the review, compared to the rest of the world, Asia Pacific had the highest growth rate (2.7%) of carbon emissions between 2008 and …
An Analysis Of The Impacts Of Climate Change On Food Security In The Albertine Rift Of East Africa, Malcolm Jacob
An Analysis Of The Impacts Of Climate Change On Food Security In The Albertine Rift Of East Africa, Malcolm Jacob
Sustainability and Social Justice
As one of the most densely populated regions on the continent of Africa, the Albertine Rift (consisting of parts of Rwanda, Uganda, and the eastern DRC) faces ongoing problems providing enough food for its people through crop production, livestock husbandry, and other forms of food production. Even more troubling for the future is that anthropogenic climate change is expected to significantly exacerbate food insecurity. This paper addresses one central question: how will climate change impact food security in the Albertine Rift? Based on an analysis of available data, this paper finds that policymakers should listen closely to local farmers and …
Three Essays On Climate Change Adaptation In Rural African Communities, Hannah Patnaik
Three Essays On Climate Change Adaptation In Rural African Communities, Hannah Patnaik
Dissertations - ALL
Climate change is one of the defining challenges of the present era, bringing new risks and exacerbating existing vulnerabilities across the world. While there is a broad recognition that solutions around climate change will require coordination and support across borders and governments, a large body of scholarship has focused on the local-level realities of climate change and the disproportionate impacts on the most vulnerable populations. The climate vulnerable poor do not have the privilege of waiting for global policy and commitment to emission reduction targets. They need planned and proactive adaptation support to build resilience to the changing climate and …
Should Mangrove Forests Be Used As Coastal Protection For The Gulf Of Mexico From Future Climate Effects: A Look At The Houston Galveston Area., Benjamin L. Weldon
Should Mangrove Forests Be Used As Coastal Protection For The Gulf Of Mexico From Future Climate Effects: A Look At The Houston Galveston Area., Benjamin L. Weldon
Master's Projects and Capstones
Climate change effects pose a major threat to coastal cities. Sea-level rise and an increase in hurricane intensity will increase the need for protection for these communities. Wetland ecosystems provide key protective services to the cities that lie behind them. Mangroves are a coastal wetland with benefits such as wave attenuation, carbon sequestration, and shoreline management. Mangrove’s habitat range will expand northward as climate change progresses. With a 2-4°C increase in winter temperature extremes black mangroves are projected to be able to inhabit the entire coast of the Gulf of Mexico. The viability of using mangrove forests as future protection …
Carbon Biogeochemical Cycling In The Sierra Nevada: How To Maintain The Sierra Nevada As Net Carbon Sink Over The Long-Term, Eric Canteenwala
Carbon Biogeochemical Cycling In The Sierra Nevada: How To Maintain The Sierra Nevada As Net Carbon Sink Over The Long-Term, Eric Canteenwala
Master's Projects and Capstones
The Sierra Nevada region is an important carbon sink, storing about 3500 MMTCO2e or eight times the total amount of carbon emitted annually throughout California. However, recent climate-driven disturbances such as wildfires, drought and bark beetle infestations threaten the stability of this carbon pool over the long-term. The existing literature on how treatments impact carbon biogeochemical cycling in the Sierra Nevada was reviewed and interviews were used to identify the top barriers to increasing the pace and scale of treatments. Combinations of forest management treatments such as thinning, prescribed fire and reforestation can help maintain the Sierra Nevada …
Local- And Regional-Scale Forcing Of Glacier Mass Balance Changes In The Swiss Alps, Saeideh Gharehchahi, Thomas J. Ballinger, Jennifer L.R. Jensen, Anshuman Bhardwaj, Lydia Sam, Russell C. Weaver, David R. Butler
Local- And Regional-Scale Forcing Of Glacier Mass Balance Changes In The Swiss Alps, Saeideh Gharehchahi, Thomas J. Ballinger, Jennifer L.R. Jensen, Anshuman Bhardwaj, Lydia Sam, Russell C. Weaver, David R. Butler
Research, Publications & Creative Work
Glacier mass variations are climate indicators. Therefore, it is essential to examine both winter and summer mass balance variability over a long period of time to address climate-related ice mass fluctuations. In this study, we analyze glacier mass balance components and hypsometric characteristics with respect to their interactions with local meteorological variables and remote large-scale atmospheric and oceanic patterns. The results show that all selected glaciers have lost their equilibrium condition in recent decades, with persistent negative annual mass balance trends and decreasing accumulation area ratios (AARs), accompanied by increasing air temperatures of +0.45 C decade 1. The controlling factor …
The Changing Face Of Winter: Lessons And Questions From The Laurentian Great Lakes, Ted Ozersky, Andrew J. Bramburger, Ashley K. Elgin, Henry A. Vanderploeg, Jia Wang, Jay A. Austin, Guy Meadows, Et. Al.
The Changing Face Of Winter: Lessons And Questions From The Laurentian Great Lakes, Ted Ozersky, Andrew J. Bramburger, Ashley K. Elgin, Henry A. Vanderploeg, Jia Wang, Jay A. Austin, Guy Meadows, Et. Al.
Michigan Tech Publications
Among its many impacts, climate warming is leading to increasing winter air temperatures, decreasing ice cover extent, and changing winter precipitation patterns over the Laurentian Great Lakes and their watershed. Understanding and predicting the consequences of these changes is impeded by a shortage of winter-period studies on most aspects of Great Lake limnology. In this review, we summarize what is known about the Great Lakes during their 3–6 months of winter and identify key open questions about the physics, chemistry, and biology of the Laurentian Great Lakes and other large, seasonally frozen lakes. Existing studies show that winter conditions have …
Another Dangerous Fire Season Is Looming In The Western U.S., And The Drought-Stricken Region Is Headed For A Water Crisis, Mojtaba Sadegh, Amir Aghakouchak, John Abatzoglou
Another Dangerous Fire Season Is Looming In The Western U.S., And The Drought-Stricken Region Is Headed For A Water Crisis, Mojtaba Sadegh, Amir Aghakouchak, John Abatzoglou
Civil Engineering Faculty Publications and Presentations
Just about every indicator of drought is flashing red across the western U.S. after a dry winter and warm early spring. The snowpack is at less than half of normal in much of the region. Reservoirs are being drawn down, river levels are dropping and soils are drying out.
It’s only May, and states are already considering water use restrictions to make the supply last longer. California’s governor declared a drought emergency in 41 of 58 counties. In Utah, irrigation water providers are increasing fines for overuse. Some Idaho ranchers are talking about selling off livestock because rivers and reservoirs …
Intangible Cultural Heritage: A Benefit To Climate-Displaced And Host Communities, Gül Aktürk, Martha B. Lerski
Intangible Cultural Heritage: A Benefit To Climate-Displaced And Host Communities, Gül Aktürk, Martha B. Lerski
Publications and Research
Climate change is borderless, and its impacts are not shared equally by all communities. It causes an imbalance between people by creating a more desirable living environment for some societies while erasing settlements and shelters of some others. Due to floods, sea level rise, destructive storms, drought, and slow-onset factors such as salinization of water and soil, people lose their lands, homes, and natural resources. Catastrophic events force people to move voluntarily or involuntarily. The relocation of communities is a debatable climate adaptation measure which requires utmost care with human rights, ethics, and psychological well-being of individuals upon the issues …
The Potential Influence Of Abiotic Conditions On Mussel Species Abundance In San Francisco Bay, Alexandra G. Farrell, M. Christina Vasquez Dr.
The Potential Influence Of Abiotic Conditions On Mussel Species Abundance In San Francisco Bay, Alexandra G. Farrell, M. Christina Vasquez Dr.
Honors Thesis
Climate change has negatively altered seawater conditions, which may have severe implications for marine ecosystems. Mussels are susceptible to environmental changes since they are primary consumers and filter-feeding bivalves. Two species of particular interest to the West Coast of the U.S. are Mytilus galloprovincialis and M. trossulus. M. trossulus is native to the California Coast and was historically prevalent from Southern California to Washington. However, with increased shipping and rising seawater temperature, M. galloprovincialis, an invasive species from the Mediterranean, pushed the species range of M. trossulus poleward. M. trossulus is more tolerant of cold seawater with variable salinity while …
International Migration From The Latin American-Caribbean Region: Taking Environmental Indicators Into Consideration, Chelsea Wepy
International Migration From The Latin American-Caribbean Region: Taking Environmental Indicators Into Consideration, Chelsea Wepy
Student Theses and Dissertations
International migration, the act of leaving one’s country to permanently settle in another country, is driven by many socio economic/political factors, such as lack of economic opportunity, access to education, governmental corruption, and violence. These factors have proven to be the reason that many citizens within the Latin American-Caribbean region either choose or are forced to relocate internationally. While these factors are important to consider independently; these issues are often exacerbated by changes in the natural environment. The objective of my paper is to highlight the importance of considering changes in the natural environment. In doing so, I hope to …
Vignette 12: The Blob, Nicholas Bond
Vignette 12: The Blob, Nicholas Bond
Institute Publications
A marine heat wave of unprecedented severity, areal extent and duration occurred in the Northeast Pacific Ocean during 2014-2016. This event, known as the “Blob,” had a wide variety of far- ranging effects on physical, chemical, and biological ocean properties. Because the Blob was such a massive perturbation, it represents an attractively large signal for inquiry in the Salish Sea. It represents a dress rehearsal for typical conditions in future decades due to global climate change.
Vignette 16: Vulnerability And Climate Change Adaptation, Northwest Indian Fisheries Commission, Jamestown S'Klallam Tribe
Vignette 16: Vulnerability And Climate Change Adaptation, Northwest Indian Fisheries Commission, Jamestown S'Klallam Tribe
Institute Publications
The 2013 Jamestown Climate Vulnerability Assessment and Adaptation Plan provides an assessment of vulnerabilities of tribal resources to the negative impacts of climate change. The plan also identifies adaptation measures that the tribe is working to complete. Sea level rise, ocean acidification and climate models show potential for increased risks to critical habitats, tribal infrastructure and tribal health. As one of the first tribes in western Washington to complete a climate adaptation plan and vulnerability assessment, the Jamestown S’Klallam Tribe has identified and prioritized areas where changing climate conditions will leave tribal resources, infrastructure, economy and health most vulnerable, Climate …
Effects Of The Transportation And Climate Initiative On The Maine Economy: An Analysis Of Cap-And-Invest And Its Heterogeneous Impacts On Rural And Urban Households, William L. Somes
Honors College
In December 2020, a memorandum of understanding (MOU) was released by the Transportation and Climate Initiative Program (TCI-P), a collaboration of 13 jurisdictions in the New England and Mid-Atlantic regions of the United States. Modeled on the Regional Greenhouse Gas Initiative (RGGI), the TCI-P follows a cap-and-invest framework to reduce emissions from the transportation sector by 26% from 2022 to 2032. Since the TCI-P is expected to raise the price of gasoline by 5¢ to 9¢ per gallon, there has been concern that some populations may be disproportionately affected. The present research studies the potential heterogeneous impacts of the TCI-P …
Predicting Range Shifts For The Virginia Opossum In Maine, Sara Griffin
Predicting Range Shifts For The Virginia Opossum In Maine, Sara Griffin
Honors College
Species distribution and movement are increasingly influenced by climate change and human expansion. The Virginia opossum (Didelphis virginiana) has been observed expanding their range northward due to the warming temperatures and urbanization. The Virginia opossums’ northern range is thought to be restricted by two abiotic winter factors, snow cover and low temperatures, which prevents foraging and ultimately leads to starvation. For this study, I predicted the movement of the Virginia opossum northward into central Maine and beyond based on current climate change trends. Microclimate temperatures were recorded using data-loggers and climate variable datasets were used to determine if …
Section 5: Cumulative Ecosystem Effects, Kathryn L. Sobocinski, Jennifer Boldt, Todd Sandell, Jaclyn Cleary, Michael Schmidt, Isobel Pearsall, Iris Kemp, Brian Riddell, Lynda V. Mapes
Section 5: Cumulative Ecosystem Effects, Kathryn L. Sobocinski, Jennifer Boldt, Todd Sandell, Jaclyn Cleary, Michael Schmidt, Isobel Pearsall, Iris Kemp, Brian Riddell, Lynda V. Mapes
Institute Publications
Section 5 introduces cumulative effects and brings in brief case discussions focused on herring, salmon, and orcas. Understanding the layers of stressors the ecosystem faces is integral to gaining a full picture of declines in ecosystem function.
Vignette 17: Salish Sea Jellyfish, Correigh Greene
Vignette 17: Salish Sea Jellyfish, Correigh Greene
Institute Publications
The Salish Sea is home to a diverse community of gelatinous zooplankton (or "jellies"). In their adult forms, jellies comprise a relatively large proportion of biomass in the Salish Sea. Questions regarding jellyfish abundance and climate variation in the Salish Sea have been difficult to address, in part because of a lack of consistent monitoring. Research presented in this vignette suggests that jellyfish are sensitive to climate signals like marine water temperatures, but do not appear to be systematically increasing in abundance over time. Due to advances in modeling, we may gain a better perspective on the roles jellies play …
Vignette 20: Fraser River Estuary In Need Of Urgent Intensive Care, Laura Kehoe, Tara G. Martin
Vignette 20: Fraser River Estuary In Need Of Urgent Intensive Care, Laura Kehoe, Tara G. Martin
Institute Publications
The Fraser River is the lifeline of the Salish Sea, influencing its stratification, circulation, and primary productivity. If we do not take strong action to conserve the Fraser River estuary, two-thirds of the species at risk in this region are predicted to have a less than 50% chance of survival. Many of the region's most iconic species could disappear. Conservation action combined with environmental governance is a pathway for a brighter future for the Fraser River and other highly contested regions.
Vignette 21: How Ecological Time-Series Inform Response To Stressors, Jackson W.F. Chu
Vignette 21: How Ecological Time-Series Inform Response To Stressors, Jackson W.F. Chu
Institute Publications
An important part of biodiversity monitoring includes assessing the differences in vulnerability across parts of an ecosystem. Hypoxia is one of the big three climate- related stressors causing biodiversity loss in the oceans. As the ocean warms, its capacity to hold oxygen becomes reduced. At the same time, concurrent shifts in circulation result in changes to how oxygen gets transported from the surface (where oxygen dissolves into the ocean) to the seafloor and from offshore to inshore areas. When a habitat experiences a substantial drop in oxygen, below the point needed to sustain everyday life, animals respond by migrating away, …
Vignette 08: Connection To Place: Indigenous Leadership In Səlilwət (Burrard Inlet), Tsleil-Waututh Nation’S Treaty Lands And Resources Department
Vignette 08: Connection To Place: Indigenous Leadership In Səlilwət (Burrard Inlet), Tsleil-Waututh Nation’S Treaty Lands And Resources Department
Institute Publications
Since time out of mind, Tsleil-Waututh have used and occupied Burrard Inlet and surrounding watersheds. Generations of Tsleil-Waututh people were brought up with the teaching, “When the tide went out, the table was set.” About 90% of our diet was once derived from Burrard Inlet and the Fraser River, but today the Inlet is unable to support our needs. Cumulative effects of colonial settlement and development have eroded the ecological health, integrity, and diversity of the Inlet. Tsleil-Waututh Nation (TWN) has a goal to restore the health of the Inlet so that we, and future generations of Tsleil-Waututh People, can …
Vignette 04: Olympia Oysters, Jodie Toft, Betsy Peabody
Vignette 04: Olympia Oysters, Jodie Toft, Betsy Peabody
Institute Publications
Olympia oysters (Ostrea lurida) are our only native oyster species here in the Salish Sea. Olympia oysters once covered an estimated 13-26% of the intertidal area in Puget Sound, mostly near the heads of inlets. A combination of overharvest, pollution, and habitat loss reduced the current population to less than 4% of historic numbers, though sparse numbers of Olympia oysters can still be found throughout most of their historic distribution. Looking to the future, as our region’s marine waters experience effects of climate change and ocean acidification (OA), native species such as the Olympia oyster may prove to …
Vignette 14: Eelgrass Wasting Disease, Olivia Graham, Morgan Eisenlord, Drew Harvell
Vignette 14: Eelgrass Wasting Disease, Olivia Graham, Morgan Eisenlord, Drew Harvell
Institute Publications
Rising seawater temperatures can increase the risk of disease outbreaks in many taxa. Pathogens are potentially the ultimate keystone species in that their small biomass can have massive impacts that ripple through ecosystems. Disease outbreaks can be particularly damaging when they affect ecosystem engineers, such as seagrasses. Outbreaks of wasting disease in seagrasses are one of a myriad of stressors associated with declining temperate and tropical seagrass meadows around the globe. Levels of eelgrass wasting disease are high in the San Juan Islands and Puget Sound. These increasing levels of disease are a threat to sustainability of eelgrass meadows, our …
Vignette 13: The Salish Sea Model, Tarang Khangaonkar P.E.
Vignette 13: The Salish Sea Model, Tarang Khangaonkar P.E.
Institute Publications
Given numerous concerns related to the health of the ecosystem and the possibility of anthropogenic impacts—from population growth to climate impacts, such as sea level rise—scientists, engineers, and planners seek an improved basic understanding of the biophysical behavior of the Salish Sea. The Salish Sea Model (SSM) development was motivated by this urgent need for a comprehensive predictive model that could diagnose water quality issues and concerns and serve as a planning tool in support of Puget Sound restoration efforts. The SSM was developed by the Pacific Northwest National Laboratory in collaboration with the Washington State Department of Ecology (Ecology) …