Digital Commons Network^™

What We Think Others Think And Do About Climate Change: A Multicountry Test Of Pluralistic Ignorance And Public-Consensus Messaging, Sandra J. Geiger, Jana K. Köhler, Zenith N. C. Delabrida, Karla A. Garduño-Realivazquez, Christian A. P. Haugestad, Hirotaka Imada, Aishwarya Iyer, Carya Maharja, Daniel C. Mann, Michalina Marczak, Olivia Melville, Sari R. R. Nijssen, Nattavudh Powdthavee, Radisti A. Praptiwi, Gargi Ranade, Claudio D. Rosa, Valeria Vitale, Małgorzata Winkowska, Lei Zhang, Mathew P. White

School of Psychology

Most people believe in human-caused climate change, yet this public consensus can be collectively underestimated (pluralistic ignorance). Across two studies using primary data (n = 3,653 adult participants; 11 countries) and secondary data (ns = 60,230 and 22,496 adult participants; 55 countries), we tested (a) the generalizability of pluralistic ignorance about climate-change beliefs, (b) the effects of a public-consensus intervention on climate action, and (c) the possibility that cultural tightness-looseness might serve as a country-level predictor of pluralistic ignorance. In Study 1, people across 11 countries underestimated the prevalence of proclimate views by at least 7.5% in Indonesia (90% credible …

Vegetation Analysis And Mapping In Evolving Ice-Wedge-Polygon Terrain Prudhoe Bay Region, Alaska, Olivia Hobgood

Biological Sciences

The Arctic is warming at an accelerating pace, and within the past few decades, ice-rich regions of the Arctic have undergone systemic changes. The subsidence of ground over degraded ice wedges has created new drainage networks and ponds within previously perpetually inundated areas, fundamentally altering ice-wedge-polygon landscape dynamics. Understanding the nature and distribution of these changes is crucial to determining potential impacts on climate, wildlife, and human society. We focus on an accessible and data-rich region within Prudhoe Bay. Although the changes caused by this shift in moisture regime are multi-faceted, we use vegetation as an easily measured proxy for …

Investigating The Microbial Communities In Freshwaters Of Northern Sweden, Maizy Wilcox

Undergraduate University Honors Capstones

Climate change is shifting the stability of sensitive ecosystems in the Arctic region due to global warming, with widespread impacts on permafrost regions, including the Stordalen Mire region of Sweden. Due to climate change, the Stordalen Mire is composed of thawing permafrost shifting into a wetland (V onk et al., 2015). As permafrost thaws, the landscape transforms due to changing water environmental conditions, causing lower pH changes and higher temperatures in the water, impacting the underlying soil chemistry and biology, vegetation, and microbial communities (Webb et al., 2022). The increased temperature can enhance methanogenic microbial growth by expanding the groundwater …

Climate Change Impacts On Drinking Water Security: A Comparative Study In Australia’S Remote Central Australia And Torres Strait Islands, Nina Lansbury, Julia Bradford, Sandra J. Creamer, Geoffrey Evans

Journal of the Australian Indigenous HealthInfoNet

Aboriginal and Torres Strait Islander communities are well adapted to the many different environments in which they have lived for thousands of years. However, their environments and communities are highly vulnerable to impacts of anthropogenic climate change, including increasing threats to the security of drinking water supplies. Climate change is intensifying the significant social and economic disadvantage Australia’s Aboriginal and Torres Strait Islander communities face from poverty, poor housing, and poor health including high exposure to infectious and other diseases. Lack of sufficient safe, clean, drinking water could force Aboriginal and Torres Strait Islander people to leave their homelands, adding …

Tropical Forest Soil Microbiome Modulates Leaf Heat Tolerance More Strongly Under Warming Than Ambient Conditions, Gabriela Hernandes Villani, Iana F. Grullón-Penkova, Parker Bartz, Joel Masanga, Jesse R. Lasky, Molly A. Cavaleri, Tana E. Wood, Benedicte Bachelot

Michigan Tech Publications

It is unclear how plants respond to increasing temperatures. Leaf heat tolerance (LHT) is often at its upper limit in tropical forests, suggesting that climate change might negatively impact these forests. We hypothesized that intraspecific variation in LHT might be associated with changes in the soil microbiome, which might also respond to climate. We hypothesized that warming would increase LHT through changes in the soil microbiome: we combined an in situ tropical warming experiment with a shade house experiment in Puerto Rico. The shade house experiment consisted of growing seedlings of Guarea guidonia, a dominant forest species, under different soil …

Antarctic Macroalgal-Associated Amphipod Assemblages Exhibit Long-Term Resistance To Ocean Acidification, Hannah E. Oswalt, Julie Schram, Margaret Amsler, Charles D. Amsler, James B. Mcclintock

Faculty, Staff, and Students

The pH of the world’s oceans has decreased since the Industrial Revolution due to the oceanic uptake of increased atmospheric CO2 in a process called ocean acidification. Low pH has been linked to negative impacts on the calcification, growth, and survival of calcifying invertebrates. Along the Western Antarctic Peninsula, dominant brown macroalgae often shelter large numbers of diverse invertebrate mesograzers, many of which are calcified. Mesograzer assemblages in this region are often composed of large numbers of amphipods which have key roles in Antarctic macroalgal communities. Understanding the impacts of acidification on amphipods is vital for understanding how these communities …

Climate Constrains The Enhancement Of Co2 Fertilization On Forest Gross Primary Productivity, Xinyuan Wei, Daniel J. Hayes, Christopher R. Schwalm, Joshua B. Fisher, Deborah N. Huntzinger, Lei Ma, Rodrigo Vargas, Nathaniel A. Brunsell

Mathematics, Physics, and Computer Science Faculty Articles and Research

Forest gross primary production (GPP) is influenced by the interplay between climate conditions and atmospheric CO₂ levels, which interact in complex ways, generating both compensating and amplifying effects. In this study, eddy covariance flux measurements from 50 forest ecosystems were integrated with simulations from 14 terrestrial biosphere models to investigate how climate conditions and atmospheric CO₂ concentrations regulate forest GPP. This approach bridges site-level observations with biome-scale model estimates to develop a global understanding. Our findings suggest that in boreal and cold temperate regions, temperature primarily constrains the enhancement of the CO₂ fertilization on forest GPP; however, …

Climate Change Behind Prison Walls: Environmental Justice, Prison Abolition, And Social Welfare, Mia Moody

Student Theses 2015-Present

Unbeknownst to many, human rights violations occur on a large scale behind prison walls. This paper examines some of these violations, especially those exacerbated by climate change, through an environmental lense in order to emphasize the need for social welfare-based solutions in the abolition of the prison industrial complex. It also seeks to illustrate the connection between the environmental justice movement and the prison abolition movement so that marginalized peoples may be free from shouldering disproportionate effects of environmental hazards and imprisonment. This paper is introduced with a brief overview of the human rights violations occurring in prisons. Using quantitative …

What Is Climate Smart Agriculture? : A Standardized Framework For Assessing The Effectiveness Of Climate Smart Agriculture Systems And Practices, Olivia G. Messerges, Trenton W. Ford

RURALS: Review of Undergraduate Research in Agricultural and Life Sciences

The United States agricultural system is challenged with feeding a growing population, adapting to climate change, and minimizing environmental damage. In response to these challenges, the paradigm of climate-smart agriculture (CSA) was developed to describe practices that address these challenges as a comprehensive strategy to address climate change and increase food security.

Definitions of CSA vary, but surround three main pillars: increasing productivity, enhancing adaptation, and reducing emissions. However, no standardized framework exists to assess if practices or technologies identified as "climate-smart" produce the desired benefits. A standardized framework would enable producers, policymakers, and researchers to improve CSA implementation, policy …

Quantifying Dna Methylation In Response To Drought Stress In Silver Firs (Abies Alba), Julia K. Brandfonbrener

Biology Honors Projects

As future droughts are expected to increase in duration and severity due to climate change, forest managers may need to evaluate which coniferous species are the most resilient in drought events. Drought stress induces changes in physiology, including decreases in water potential, stomatal closure, pigment degradation, and leaf senescence (Jongdee et al., 2002, Munné-Bosch & Alegre, 2004, Heitholt et al., 1991). These physiological changes are associated with epigenetic regulation of gene expression in response to abiotic stressors (Alongi et al. 2025) and have been highly studied in crop plants and Arabidopsis. This project examines the photosynthetic and epigenetic response …

Shaping Minds, Shaping Future: Analyzing K-12 Climate Change Education Policy Preferences In Arkansas, Nataliia Borozdina

Graduate Theses and Dissertations

Climate change education in K-12 public schools is a highly debated and divisive policy issue, particularly in politically conservative states such as Arkansas, where ideological divisions often dominate and shape public attitudes and policy preferences. This dissertation examines the attitudes, preferences, and behavioral intentions of three key stakeholder groups, namely the policy elites, general public, and educators toward climate change education policies in K-12 public schools in the state of Arkansas. While political party affiliation is an important factor, this study explores a more nuanced relationship by considering the interplay of Cultural Theory, risk perception, trust in government, climate change …

Reevaluating The Role Of Ruppia Maritima: Recruitment Dynamics And Habitat Use By Blue Crabs (Callinectes Sapidus) And Associated Benthic Fauna In A Mid-Atlantic Seagrass Community, Delaney St. Pierre

Theses, Dissertations and Culminating Projects

The value of seagrasses as essential fish habitat is well recognized, but limited data exist on the value of one particular species, Ruppia maritima (widgeon grass), as habitat for fish and invertebrates. During the summer of 2024, I evaluated R. maritima, Zostera marina (eelgrass) and mixed beds to assess their relative value as habitat in Barnegat Bay, New Jersey. Results from throw traps indicated significant monthly differences for pipefish, gobies, blue crabs, grass shrimp, and sand shrimp, driven by active recruitment events. When evaluating habitat type, we found no taxa that were significantly more abundant in Z. marina habitat as …

Consumptive And Energetic Responses Of Fishes Under Pressure Of Climate Change, Nathan Thomas Hermann

Doctoral Dissertations

Marine organisms are confronted with warming waters due to climate change requiring species to exhibit responses to persist. For many fish, these responses have included range shifts to cooler waters, but are species-specific which may create further disruption through trophic mismatches. To identify potential mismatches and estimate their implications for the quality of consumption within major predators, analyses of predator stomach contents were integrated with reviews of organismal energetics and physiological parameter values. The energy density of prey that is consumed dictates the consequences of consumption, so having data expands general understanding of diet. To that end, published records (n …

Adélie Penguin Vocalizations Reflect Breeding Phenology, Danielle Therese Fradet

Master's Theses and Capstones

Adélie penguins (Pygoscelis adeliae) are bellwethers for Antarctic climate change because their breeding phenology is closely linked to sea-ice extent. Researchers need long-term, large-scale phenology data to make informed Antarctic climate and conservation insights. However, traditional breeding phenology data collection is resource intensive, limiting research to small colonies located near research stations. Passive acoustic monitoring (PAM) is a low-disturbance, easily scalable method which facilitates large-scale data collection and has been successfully applied at multiple seabird colonies to collect breeding phenology data. In this thesis, I provide a framework to implement a custom BirdNET wind detector to identify wind distorted recordings, …

Epidemiological Inferences Of The Impacts Of Winter Ticks On Moose Health, Krishna S. Woerheide

Department of Entomology: Dissertations, Theses, and Student Research

The North American Moose (mooz in Anishinaabemowin, Ojibwe language, Alces alces), a culturally significant subsistence species for the Anishinaabe people, faces population decline due to calf predation, pathogen transmission, and parasitism by the winter tick (Dermacentor albipictus), all exacerbated by climate change. This study explores the impact of winter tick infestations on moose health, with a focus on natural mineral seeps as potential transmission hotspots in moose habitats within the Grand Portage Indian Reservation (Gichi Onigaming), on Isle Royale National Park (Minong), and within the 1854 Ceded Territory (greater northeastern Minnesota) - ancestral and present homelands of …

Climate Prediction As An Adaptive Force-Multiplier: Reasons For Hope In A Rapidly Changing World, Matthew D. Laplante

All Graduate Theses and Dissertations, Fall 2023 to Present

It's not unreasonable to feel pessimistic about our future under climate change. But "believing the science" doesn't require you to accept that we are headed toward apocalypse. It is true that human-caused climate change is real, it is underway, and our societies face many increased risks because of it. But that's just part of what climate science tells us about our future world. This same field is responsible for the recent and rapid development of tools and techniques that permit the identification of patterns in our oceans and atmosphere that will aid us in making increasingly accurate predictions about climate—the …

Assessing Phenotypic Variation Across Generations Of Iberodes Littoralis Under Climate Change, Mariangel M. Fernandez Silva

Electronic Theses, Projects, and Dissertations

The consequences of climate change and anthropogenic activity have decreased wildlife biodiversity. Plants are particularly vulnerable to climate change due to their large biomass on the planet and sessile nature. A particularly useful method for plants to cope with environmental changes is phenotypic plasticity. Adjusting morphological traits through plasticity can help plants cope with environmental changes. Furthermore, plastic responses can be passed down through methods such as changes in DNA sequence or epigenetic modifications.

Our research project focuses on an herb, Iberodes littoralis, a species of concern native to the Siberian Peninsula with approximately thirteen extant populations. The data that …

The Forest Through The Trees: Modeling The Ecological Niche And Potential Assemblage Distribution Of Oak-Hickory Forests Across The Eastern U.S., Elijah Worley

Electronic Theses and Dissertations

Understanding how tree species’ ranges and populations may shift by the end of the 21^st Century is critical for effective conservation and forest management. Ecological niche models are widely used to predict species distributions by modeling the relationships between environmental variables and species presence. While numerous models have been developed for individual tree species across the USA, there is limited research on how tree species assemblages, such as oak-hickory forests, will respond to changes in climate over time. Maxent modeling software was used to predict potential shifts in suitable habitat for the oak-hickory forest type, based on environmental variables …

Trump Attacks On Climate Science May Violate Numerous Federal Laws, Michael B. Gerrard

Faculty Scholarship

Starting on its first day on January 20, 2025, the second Trump administration has launched an unprecedented rollback of efforts to fight climate change. The Sabin Center for Climate Change Law’s Climate Backtracker already has 117 items.

Much of this is aimed at scientific research on climate change, or has the effect of inhibiting the conduct and dissemination of this research. Many of these actions may also violate federal laws.

This article discusses these actions, some of their legal implications, and the litigation challenges that have already been brought. It begins with actions that are specifically aimed at climate research, …

Surface Urban Heat Island Effects Analysis In The Most Populated City In Thailand: Towards Sustainable Urban Development, Abdul Maulud Khairul Nizam, Muhammad Noor, Zafar Iqbal

AUIQ Technical Engineering Science

The fast and unprecedented urban growth process may violate cities' responsibilities by causing an urban heat island (UHI) and increasing the public's risk of heat-related illnesses due to vegetative area reduction and urban area inclination. The Bangkok Metropolitan Area (BMA)'s variations in Land Use Land Cover (LULC), Land Surface Temperature (LST), UHI, and several geospatial indicators, as well as the daytime and nighttime LST, are the main subjects of the study. Between 2015 and 2021, the highest Daytime LST (DLST) rose consistently from 36.77°C to 38.14°C, then slightly decreased to 37.22°C in 2023. There is a general increase in the …

Cliona Delitrix Population Demographics And Ecological Succession On San Andrés Reefs, Colombia, Maya Clarke

Harriet L Wilkes Honors College Theses

As climate change decimates coral populations, excavating sponges are becoming prominent in some reefs as critical bioeroders. This thesis aims to assess ecological succession patterns and population demographics of the excavating sponge Cliona delitrix on San Andrés, Colombia reefs over 20 years. Population growth was quantified. Growth was constant, with recruits replacing dead mature sponges at an equal rate. A frequency analysis was run to assess the successor prevalence per substratum. On live corals, succession after C. delitrix death is dominated by a diverse community of organisms, including macroalgae, turf algae, sponges, calcareous algae, and others. Understanding reefs as dynamic …

Metabolic Diversity Of A Widely Distributed Tropical Freshwater Crab Is Not Underpinned By Genetic Differences, Lucy Turner, Christopher Thorpe, Michael Collins, Smrithy Raj, Tripti Shukla, John Spicer, Mairi Knight, Dheeraj Sharma, Krushnamegh Kunte

School of Biological and Marine Sciences

AimThe aim of this study was to understand the interplay between local and regional factors as drivers of population physiological diversity in a tropical freshwater crab species.LocationWestern Ghats, south-west India.TaxonBarytelphusa cunicularis, Brachyura, Crustacea.MethodsWe applied an integrative approach combining population genetics and whole animal physiology, using the tropical freshwater crab Barytelphusa cunicularis as our model species. We tested for effects of population location (e.g., latitude, altitude), season (as a proxy for rainfall and water temperature) and/or warming on indices of whole animal respiratory physiology (metabolic rate, MO2) and hypoxic performance (Pcrit, i.e., the PO2 at which routine MO2 can no longer …

Jadriyah And Umm Al-Khanazeer Island Sites, Baghdad, Iraq: Status And Eligibility As An Important Bird Area, Aya Yaqoob Jasim, Nadheer Abod Fazaa

Baghdad Science Journal

In Baghdad, the site of Jadriyah and Umm Al-Khanazeer Island (JUKI) was the only IBA nominated by the Birdlife International in 1994 (based on data from 1984). Unfortunately, the JUKI site was deleted from the IBA list in 2017 without proper investigation. We compared our 2022 data with two previous surveys and successfully calculated the trend of the site for the first time. JUKI, as compared to 1984 as baseline data, has currently a medium level of threats (land use change and climate change). Status assessment shows that the site in 2022 has 58.9 % of its 1984 potential habitat …

Designing An Optimal Thermal Preference Arena For Southern Cricket Frog (Acris Gryllus) Juveniles, Eleanor E. Briggs, David M. Phillips Jr.

Honors Theses

Climate change has been altering ecosystems across the world at a substantial rate, disrupting the delicate ecophysiological relationships between ecosystems and the organisms that live in them. Ectotherms, such as amphibians, rely on external temperatures to behaviorally thermoregulate, making it especially imperative to study their thermal biology. Thermal preference, which assesses the environmental temperature an organism would seek out in the absence of external stimuli, provides valuable information about an amphibian’s thermal biology and can be used to predict the effects of climate change on a species or population. A commonly used method to measure thermal preference is an arena …

Life After Death: Investigating The Resistance And Recovery Of Fungal Communities To Foundation Tree Mortality, Jessie F. Marlenee

Biology ETDs

Tree mortality can have cascading effects on the composition and resilience of interacting fungal communities. Yet, little is known about the impact tree mortality, distinct from abiotic drivers (i.e., drought), has on these communities. This dissertation focuses on the resilience of fungal communities to experimental tree mortality in a piñon-juniper woodland. In chapter one, I found that piñon mortality reduced piñon fine root biomass and piñon mycorrhizal fungal diversity, whereas juniper mycorrhizal fungi were unaffected by juniper mortality. In chapter two, I revealed that piñon mortality altered the composition and spatial structure of mycorrhizal and saprotrophic fungi in the soil, …

Climate Exceptionalism In Court, Zachary D. Clopton, David A. Dana

Northwestern University Law Review

Across a range of cases, fossil fuel companies, government actors, and some judges have conceded that climate change is an exceptional phenomenon, only to argue that its exceptional nature is a reason to keep climate change out of court. These parties and judges thus seek to avoid the adjudication of climate cases on the merits, even when the neutral application of existing law would provide for jurisdiction in these cases. We term this phenomenon “climate jurisdiction exceptionalism.”

This Article provides a comprehensive account of climate jurisdiction exceptionalism, focusing on two main threads: Article III standing and state court jurisdiction. First, …

A Review On Detection Of Drought Stress In Tea Plants Through Morphological, Physiological, And Biochemical Approaches, Intan Ratna Dewi Anjarsari, Erni Suminar, Nabila Ragil Wiharti

Jurnal Kultivasi

Tea plants (Camellia sinensis) are important commodities with high economic value, but their production is greatly affected by environmental stresses such as drought and extreme temperatures. Global warming in recent years has led to extreme weather events and an increase in the earth's temperature, which also causes drought. Drought stress is one of the most significant abiotic factors affecting crop productivity. However, despite significant progress, there remains a notable gap in research, particularly the lack of integrated studies that combine morphological, physiological, and biochemical indicators for early and precise detection of drought stress in tea plants. To identify and mitigate …

Sheep Production, Profitability And Greenhouse Gas Emission Of Mixed Farming Systems In Western Australia's Wheatbelt, Tafesse Estifanos, Amir Abadi Abadi Ghadim, Kate Pritchett, Christophe D'Abbadie, Johnny Machon, Paul Mattingley, Bradley Plunkett, Gus Manatsa, Kerrine Blenkinsop, Ross Kingwell, Clinton K. Revell Dr

Animal production and livestock research reports

The south-western agricultural area of Western Australia is a vital contributor to Australia's agricultural output. It generates over $10 billion annually in agricultural production from 2017–18 to 2021–22 and more than $8 billion in export value over the same period. Mixed farming systems characterise the region, producing broadacre crops (primarily wheat, barley, and canola) and livestock. The region's livestock industry is dominated by sheep production for meat and wool, and the state’s share of the national sheep flock in 2020–21 was at 18%.

This report provides a comprehensive review and industry analysis of sheep production in WA, its economic significance, …

Agricultural Innovation To Climate Change In Northwest Pemba Island, Margaret Horn

Tanzania-Zanzibar: Coastal Ecology and Natural Resource Management

This study investigates how climate change is reshaping agriculture and food security on Pemba Island, Zanzibar, a region historically known as “The Green Island” for its rich biodiversity and agricultural productivity. Through semi-structured interviews with 11 local farmers and extended participant observation at the farm of government official Amour Juma Mohammed, the research reveals that increasingly erratic rainfall, rising temperatures, and prolonged droughts are disrupting traditional planting cycles and reducing crop yields. Farmers report the near disappearance of the vuli rainy season and increasingly severe weather during masika, leading to both water scarcity and crop damage. In response, many have …

Streamlining Wildlife Regulation, Robert L. Fischman

Michigan Journal of Environmental & Administrative Law

A recent burst of revisions in the bedrock regulations governing projects that may adversely affect wildlife represents a generational shift in policy. Streamlining federal decision -making drove much of this reform. Streamlining offers a path to address climate change without abandoning a longstanding commitment to wildlife conservation. The conservation community recognizes the need to build new infrastructure to reduce the rate of climate change through air emissions. The most urgent priority is decarbonizing the electrical ~rid through renewable energy generation and a better transmission network. Adaptation to the "new abnormal" of climate-driven environmental disruption demands federal approvals for a host …