Current Search: Global environmental change (x)
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- Title
- Interview with Dr. Leonard Berry – ca. 2002.
- Creator
- Berry, Leonard, Donnelly, Ginger
- Date Issued
- 2002-10-29
- PURL
- http://purl.flvc.org/fau/fd/FADT78768
- Subject Headings
- Environmental sciences, Global environmental change, Oral histories --Florida, Oral history
- Format
- Set of related objects
- Title
- Influences of climate variability and change on precipitation characteristics and extremes.
- Creator
- Goly, Aneesh, College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
- Abstract/Description
-
This study focuses on two main broad areas of active research on climate: climate variability and climate change and their implications on regional precipitation characteristics. All the analysis is carried out for a climate change-sensitive region, the state of Florida, USA. The focus of the climate variability analysis is to evaluate the influence of individual and coupled phases (cool and warm) of Atlantic multidecadal oscillation (AMO) and El Niäno southern oscillation (ENSO) on regional...
Show moreThis study focuses on two main broad areas of active research on climate: climate variability and climate change and their implications on regional precipitation characteristics. All the analysis is carried out for a climate change-sensitive region, the state of Florida, USA. The focus of the climate variability analysis is to evaluate the influence of individual and coupled phases (cool and warm) of Atlantic multidecadal oscillation (AMO) and El Niäno southern oscillation (ENSO) on regional precipitation characteristics. The two oscillations in cool and warm phases modulate each other which have implications on flood control and water supply in the region. Extreme precipitation indices, temporal distribution of rainfall within extreme storm events, dry and wet spell transitions and antecedent conditions preceding extremes are evaluated. Kernel density estimates using Gaussian kernel for distribution-free comparative analysis and bootstrap sampling-based confidence intervals are used to compare warm and cool phases of different lengths. Depth-duration-frequency (DDF) curves are also developed using generalized extreme value (GEV) distributions characterizing the extremes. ... This study also introduces new approaches to optimally select the predictor variables which help in modeling regional precipitation and further provides a mechanism to select an optimum spatial resolution to downscale the precipitation projections. New methods for correcting the biases in monthly downscaled precipitation projections are proposed, developed and evaluated in this study. The methods include bias corrections in an optimization framework using various objective functions, hybrid methods based on universal function approximation and new variants.
Show less - Date Issued
- 2013
- PURL
- http://purl.flvc.org/fcla/dt/3362383
- Subject Headings
- Climatic changes, Environmental aspects, Global temperature changes, Environmental aspects, Precipitation (Meteorology), Measurement, Bootstrap (Statistics)
- Format
- Document (PDF)
- Title
- Oxygen and carbon isotopic profiles of Recent and Cenozoic mollusks: Growth rates and paleoenvironmental analysis.
- Creator
- Strauss, Josiah., Florida Atlantic University, Oleinik, Anton E.
- Abstract/Description
-
Oxygen and Carbon stable isotope ratios were used to analyze and compare growth histories of six Recent and fossil genera of mollusks: three genera of gastropods---Triplofusus, Fasciolaria, and Beringius, and three genera of bivalves--- Dosinia, Anadara, and Codakia. Taxa were selected to check for compatibility of results between different fossil genera from the same environment. Comparison between isotopic signatures in recent and fossil congeneric species allowed substantial insight into...
Show moreOxygen and Carbon stable isotope ratios were used to analyze and compare growth histories of six Recent and fossil genera of mollusks: three genera of gastropods---Triplofusus, Fasciolaria, and Beringius, and three genera of bivalves--- Dosinia, Anadara, and Codakia. Taxa were selected to check for compatibility of results between different fossil genera from the same environment. Comparison between isotopic signatures in recent and fossil congeneric species allowed substantial insight into growth rates. Recent specimens were collected from the Gulf of Aniva, Gulf of California, Bahamas, Florida Keys, and Gulf of Mexico. Fossil specimens were collected from the Middle Miocene of Kamchatka and the Pleistocene of Florida. Oxygen isotope ratios were also used to infer ambient seawater temperatures during the deposition of each shell. The calculated temperatures offer significant insight into the Pleistocene southern Florida embayment and Middle Miocene climatic optimum in the North Pacific.
Show less - Date Issued
- 2005
- PURL
- http://purl.flvc.org/fcla/dt/13208
- Subject Headings
- Mollusks--Effect of habitat modification on, Isotope geology, Paleoecology--Research, Global environmental change
- Format
- Document (PDF)
- Title
- The Very Useful Notion: A Rhetorical History of the Idea of Human-Made Climate Change, 1950-2000.
- Creator
- Brooten, Gary, Marin, Noemi, Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, School of Communication and Multimedia Studies
- Abstract/Description
-
This dissertation tests an original hybrid methodology to explore the rapid spread of the idea of human-made climate change that began in the 1950s after the idea had lain dormant for half a century. It describes the 1950s rhetorical events that triggered the idea’s diffusion, then traces how its rhetorical uses gradually gave root to the end-of-thecentury political impasse over how to respond to the societal implications of the idea. The research methodology rests on the simple logic that an...
Show moreThis dissertation tests an original hybrid methodology to explore the rapid spread of the idea of human-made climate change that began in the 1950s after the idea had lain dormant for half a century. It describes the 1950s rhetorical events that triggered the idea’s diffusion, then traces how its rhetorical uses gradually gave root to the end-of-thecentury political impasse over how to respond to the societal implications of the idea. The research methodology rests on the simple logic that an idea can only spread by being used in human discourses. It combines traditions of rhetorical historiography with a philosophical view of intellectual history as the cumulative effect of a “natural selection” of ideas and their spread by human individuals over time and geography. It calls for sampling and analyzing rhetorical artifacts in light of the rhetorical situations in which they originate, focusing on how the idea of human-made climate change is used rhetorically in scientific and other discourses. The analyses form the basis of a narrative giving emphasis both to rhetorical continuities and to conversation-changing rhetorical events. They also show how these rhetorical dynamics involve interactions of human communities using or attacking the idea for their communal purposes. The results challenge science-focused understandings of the history of the idea itself and also suggest that the methodology may be more broadly useful. As to the history, the analyses highlight how changes in the rhetorical uses of the idea made possible its 1950s breakout in climate science, then led to uses that spread it into other sciences and into environmentalism in the 1960s, attached it to apocalyptic environmentalism in the 1970s, injected it into partisan politics in 1980s and shaped the political impasse during the 1990s. The data show that the methodology reveals elements of the discourses missed in histories emphasizing the “power of ideas,” suggesting that a focus on the usefulness of ideas may be more fruitful. A focus on rhetorical uses of ideas grounds the causation of intellectual change in human motivation and agency, expressed in material acts that multiply and disperse naturally through communities and populations.
Show less - Date Issued
- 2016
- PURL
- http://purl.flvc.org/fau/fd/FA00004691, http://purl.flvc.org/fau/fd/FA00004691
- Subject Headings
- Climate change mitigation, Climatic changes -- Philosophy, Climatic changes -- Social aspects, Global environmental change, Human beings -- Effect of climate on, Rhetorical criticism
- Format
- Document (PDF)
- Title
- Public Perception of Health Risks Related to Climate Change in Broward County, Florida.
- Creator
- Buck, Jeanmarie A. Steckler, Cameron, Mary, Florida Atlantic University, Dorothy F. Schmidt College of Arts and Letters, Department of Anthropology
- Abstract/Description
-
Scholars agree that global climate change is a major threat to the physical environment, affecting all aspects of life on the planet. However, the general public do not feel that climate change is a major risk or threat, especially to humans. It is important to understand the public’s perception and opinions of climate change as it affects and influences the creation and passing of climate change adaptation and mitigation policies. Specifically, little is known about public perceptions in...
Show moreScholars agree that global climate change is a major threat to the physical environment, affecting all aspects of life on the planet. However, the general public do not feel that climate change is a major risk or threat, especially to humans. It is important to understand the public’s perception and opinions of climate change as it affects and influences the creation and passing of climate change adaptation and mitigation policies. Specifically, little is known about public perceptions in regards to the greater health risk imposed by global climate change. This study examines the public's perception of health risks related to climate change in Broward County, Florida by using mixed methods. An online survey was conducted along with in-person interviews with the general public and a physician. The study found majority of respondents to believe climate change affects health, but lacked an understanding of how it is harmful to their health. It also found that gender affects their perceptions and political ideology appears to have an effect, but the effect of socioeconomic status on their perceptions were unable to be determined at this time. Broward is just developing policies to adapt and mitigate the health effects of climate change.
Show less - Date Issued
- 2017
- PURL
- http://purl.flvc.org/fau/fd/FA00004813, http://purl.flvc.org/fau/fd/FA00004813
- Subject Headings
- Environmental health--Florida--Broward County., Health risk assessment--Florida--Broward County., Human beings--Effect of climate on., Climatic changes--Health aspects., Social change--Health aspects., Global warming--Health aspects., Public health surveillance--Florida--Broward County.
- Format
- Document (PDF)