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Full-Text Articles in Physical Sciences and Mathematics

Climate Change Sep 2017

Climate Change

Activities

Global warming is a huge issue, not just because of the potential impact of the warming on the earth’s ecosystems, but also because the principal activity responsible for the bulk of emissions, fossil fuel combustion, literally fuels the engines of industrialized, urbanized societies. The stakes are huge -- international, political, financial, and environmental. In this exercise, you’ll learn about how to assess information sources, a critical skill in forming your own opinions and actions.


Using The Nasa Worldwind Agrosphere Web App As A Climate Change Modeling Tool In The Classroom, Nicholas Rubel, Patrick Hogan, Stacey Chen, Endia Irazarry, Atreya Iyer, John Nguyen, Mingda Tang Sep 2017

Using The Nasa Worldwind Agrosphere Web App As A Climate Change Modeling Tool In The Classroom, Nicholas Rubel, Patrick Hogan, Stacey Chen, Endia Irazarry, Atreya Iyer, John Nguyen, Mingda Tang

STAR Program Research Presentations

Climate change is a clear and imminent threat to the world today. While there are Next Generation Science Standards (NGSS) for teaching climate change in the classroom, students may have a difficult time understanding the seriousness of the issue. One of the standards in the NGSS is for students to develop their own explanation of climate change and its impact. That’s where AgroSphere comes in. AgroSphere is a web-based app that utilizes NASA open-source software WorldWind. WorldWind allows developers to create their own Java, Android, or web-based apps that can display data on the globe. AgroSphere displays historical weather (climate) …


Observed Changes In Climate And Streamflow In The Upper Rio Grande Basin, Shaleene Chavarria Jul 2017

Observed Changes In Climate And Streamflow In The Upper Rio Grande Basin, Shaleene Chavarria

Earth and Planetary Sciences ETDs

Observed streamflow and climate data are used to test the hypothesis that climate change is already affecting the streamflow volume derived from snow accumulation in ways consistent with climate model-based projections of 21st century streamflow. Annual and monthly changes in streamflow volume and surface climate variables on the upper Rio Grande (URG) near its headwaters in southern Colorado are assessed for water years 1958-2015. Trends in discharge are examined together with variations in snow water equivalent and surface climate variables. Results indicate that temperatures in the basin have increased significantly primarily in the winter and spring seasons, April 1 snow …


The Relationship Between Wildfire Dynamics And Soil Carbon In Boreal Forests Of Alaska: Forest Management For Emissions Reduction In A Changing Climate, James D. Heaster May 2017

The Relationship Between Wildfire Dynamics And Soil Carbon In Boreal Forests Of Alaska: Forest Management For Emissions Reduction In A Changing Climate, James D. Heaster

Master's Projects and Capstones

The boreal region of Alaska has vast forests spanning hundreds of thousands of square kilometers in the central portion of the state that is prone to large stand replacing summer wildfires. The region stores considerable quantities of terrestrial carbon sequestered in soil horizons down to 1 meter in depth that are strongly influenced by a combination of climate change, permafrost dynamics, vegetative composition, and fire regimes. Data and literature establish that the boreal region of Alaska (and the rest of the Arctic) has been steadily warming at a rate nearly double that of lower latitudes. This warming has resulted in …


Financial Assessment Of Agricultural Lands At Risk To Coastal Salt Marsh Migration In Relation To Climate Change Induced Sea Level Rise In Dorchester County, Maryland, Jewell Porter May 2017

Financial Assessment Of Agricultural Lands At Risk To Coastal Salt Marsh Migration In Relation To Climate Change Induced Sea Level Rise In Dorchester County, Maryland, Jewell Porter

International Development, Community and Environment (IDCE)

The increasing rate and effects of sea level rise is a major environmental concern in the Chesapeake Bay. This paper evaluates the impacts of rising sea level on coastal salt marshes and the surrounding agricultural lands at risk in Dorchester County, Maryland to build off existing environmental monitoring work performed by NOAA’s Sentinel Site Program. The results of the spatial analysis were used to estimate monetary benefits to incentivize farmers to protect these marshes by making their land available for marsh migration to occur. Looking at three scenarios of sea level rise and marsh migration, grain crops (corn, soybeans, and …


Influence Of Internal Variability On Population Exposure To Hydroclimatic Changes, Justin S. Mankin, Daniel Viviroli, Mesfin Mekonnen, Arjen Y. Hoekstra, Radley M. Horton, Jason E. Smerdon, Noah S. Diffenbaugh Mar 2017

Influence Of Internal Variability On Population Exposure To Hydroclimatic Changes, Justin S. Mankin, Daniel Viviroli, Mesfin Mekonnen, Arjen Y. Hoekstra, Radley M. Horton, Jason E. Smerdon, Noah S. Diffenbaugh

Daugherty Water for Food Global Institute: Faculty Publications

Future freshwater supply, human water demand, and people’s exposure to water stress are subject to multiple sources of uncertainty, including unknown future pathways of fossil fuel and water consumption, and ‘irreducible’ uncertainty arising from internal climate system variability. Such internal variability can conceal forced hydroclimatic changes on multi-decadal timescales and near-continental spatial-scales. Using three projections of population growth, a large ensemble from a single Earth system model, and assuming stationary per capita water consumption, we quantify the likelihoods of future population exposure to increased hydroclimatic deficits, which we define as the average duration and magnitude by which evapotranspiration exceeds precipitation …


A Comparison Of Benthic Macroinvertebrate Assemblages Between Perennial And Intermittent Headwater Streams Of The Mattole River In Northern California, Usa, Mason S. London Jan 2017

A Comparison Of Benthic Macroinvertebrate Assemblages Between Perennial And Intermittent Headwater Streams Of The Mattole River In Northern California, Usa, Mason S. London

Cal Poly Humboldt theses and projects

Intermittent streams are common throughout the world and comprise 60% or more of total river lengths in the conterminous United States. Despite their prevalence, intermittent streams are understudied, particularly first-order headwater streams, which are vital for maintaining the function, health and biotic diversity of river networks. In June 2016, I sampled five intermittent and five perennial headwater streams in the Mattole River watershed in northwestern coastal California, USA, to compare benthic macroinvertebrate (BMI) assemblages between intermittent and perennial streams. BMI samples were collected using a 500µm mesh D-net at eight randomly located riffles along a 150-m reach, and then composited, …


The Biology Of Climate Change: The Effects Of Changing Climate On Migrating And Over-Wintering Species At A High-Elevation Field Station, Carrie A. Wu, Ellwein Amy Jan 2017

The Biology Of Climate Change: The Effects Of Changing Climate On Migrating And Over-Wintering Species At A High-Elevation Field Station, Carrie A. Wu, Ellwein Amy

Biology Faculty Publications

Students engage with long-term environmental and phenology data sets (spanning over 40 years) collected at the Rocky Mountain Biological Laboratory, a high-elevation field station in Colorado, to explore the effects of climate change on the phenology of migrating and hibernating species. After becoming familiar with the geographic context, people involved with the data collection, and organisms studied through background readings and videos, students explore the raw data set in Excel or using an interactive data visualization tool. In small groups, students reproduce figures and regressions from Inouye et al. (2000) based on those data, then expand their analyses with data …


Useful To Usable: Developing Usable Climate Science For Agriculture, Linda Stalker Prokopy, J. Stuart Carlton, Tonya Haigh, Maria Carmen Lemos, Amber Saylor Mase, Melissa Widhalm Jan 2017

Useful To Usable: Developing Usable Climate Science For Agriculture, Linda Stalker Prokopy, J. Stuart Carlton, Tonya Haigh, Maria Carmen Lemos, Amber Saylor Mase, Melissa Widhalm

Drought Mitigation Center: Faculty Publications

The Useful to Usable (U2U) project was a six-year research and extension project funded by the United States Department of Agriculture to provide both useful and usable climate information for the agricultural (corn) sector in the Midwestern United States. The project adopted an extensive co-production of knowledge and decision-making approach that involved intense iteration with potential end-users, including farmers and a variety of professional agricultural advisors, through focus groups and surveys, feedback at outreach events, and frequent informal interactions to develop both decision support tools and delivery mechanisms that met stakeholder needs. This overview paper for this special issue illustrates …


Agricultural Trade Publications And The 2012 Midwestern U.S. Drought: A Missed Opportunity For Climate Risk Communication, Sarah P. Church, Tonya Haigh, Melissa Widhalm, Silvestre Garcia De Jalon, Nicholas Babin, J. Stuart Carlton, Michael Dunn, Katie Fagan, Cody L. Knutson, Linda Stalker Prokopy Jan 2017

Agricultural Trade Publications And The 2012 Midwestern U.S. Drought: A Missed Opportunity For Climate Risk Communication, Sarah P. Church, Tonya Haigh, Melissa Widhalm, Silvestre Garcia De Jalon, Nicholas Babin, J. Stuart Carlton, Michael Dunn, Katie Fagan, Cody L. Knutson, Linda Stalker Prokopy

Drought Mitigation Center: Faculty Publications

The Midwestern United States experienced a devastating drought in 2012, leading to reduced corn and soybean yields and increased instances of pests and disease. Climate change induced weather variability and extremes are expected to increase in the future, and have and will continue to impact the agricultural sector. This study investigated how agricultural trade publications portrayed the 2012 U.S. Midwestern drought, whether climate change was associated with drought, and whether these publications laid out transformative adaptation measures farmers could undertake in order to increase their adaptive capacity for future climate uncertainty. We performed a content analysis of 1000 media reports …


Green Building Business Is Booming, Richard Snow, Mary Snow Jan 2017

Green Building Business Is Booming, Richard Snow, Mary Snow

Publications

Shelter is one of life’s basic necessities. However, according to the U.S. Department of Energy, residential and commercial buildings account for nearly 40% of the total carbon dioxide (CO2) released in the United States annually [1]. The percentage is even higher in China, which leads the world in CO2 emissions from buildings. Most of this CO2 comes from burning fossil fuels to provide the energy necessary to cool, heat, and light homes, office buildings, and retail space. CO2 emissions from residential and commercials buildings are forecast to increase more than emissions from any other sector over the next 25 years. …


Understanding Community Character As A Socio-Ecological Framework To Enhance Local-Scale Adaptation: An Interdisciplinary Case Study From Rural Northwest Connecticut, Joanna Wozniak-Brown Jan 2017

Understanding Community Character As A Socio-Ecological Framework To Enhance Local-Scale Adaptation: An Interdisciplinary Case Study From Rural Northwest Connecticut, Joanna Wozniak-Brown

Antioch University Full-Text Dissertations & Theses

Around the world, municipalities are facing new challenges, not the least of which is climate change. This is especially true for rural communities that, for a variety of reasons, will be disproportionately affected by the climatic changes and accompanying policies or programs.

This dissertation, written in manuscript-style, integrates climate change and social-ecological scholarship to address the unique character of rural communities, to communicate the complexity of rural identity through the term "rural character"; and to empower rural communities to incorporate adaptation strategies into their daily municipal operations and planning.

Specifically, this dissertation seeks to answer the following questions: What is …