scholarly journals AVALIAÇÃO QUÍMICA DE LENHOS CARBONIZADOS DE Araucaria columnaris SOB DIFERENTES CONCENTRAÇÕES DE OXIGÊNIO COMO COMPARATIVO DE ANÁLISE DE charcoal FÓSSIL

Química Nova ◽  
2020 ◽  
Author(s):  
Fernanda Marder ◽  
Daniela Lara ◽  
André Jasper ◽  
Eduardo Ethur ◽  
Dieter Uhl ◽  
...  
Keyword(s):  
Climate Change ◽  
Environmental Changes ◽  
Atmospheric Oxygen ◽  
Firing Process ◽  
Chemical Evaluation ◽  
Fossil Coal ◽  
The Face ◽  
Life Trajectory ◽  
Carbonized Wood ◽  
Oxygen Concentrations

CHEMICAL EVALUATION OF Araucaria columnaris CARBONIZED WOODS UNDER DIVERSE OXYGEN CONCENTRATIONS AS COMPARATIVE ANALYSIS OF FOSSIL charcoal. In the face of environmental changes concerns, the study of climate change becomes essential to understand the life trajectory of planet earth. For this purpose, this work seeks to understand climate change and fluctuations in the amount of atmospheric oxygen across geological ages, carbonizing the Araucaria columnaris wood in varying oxygen concentrations, and comparing them to the fossil coal from Quiteria Outcrop. In this study, pyrolysis of Araucaria columnaris wood occurred with the use of TGA, under an atmosphere of 21% and 30% O2, analyzed in FTIR, distinguishing the constituent compounds of the wood. Multivariate analysis of the mains components (PCA) was applied, for data crossing. There is a distinction between carbonized wood and fossil charcoal, the charcoal burning temperature as well as the atmospheric oxygen composition being inconclusive. However, FTIR results indicate that the amount of oxygen has an influence on the degradation of the wood, and samples at 450 °C have greater similarities with fresh wood. Thus, it was observed that the temperature and the burning time are the main factors of the fires, being that the amount of oxygen available in the atmosphere influences the firing process.

scholarly journals Keeping ahead of floods and droughts: a case study of Sdau Kaong Commune, Cambodia

2021 ◽  
Author(s):  
◽  
Sopharo Oum
Keyword(s):  
Climate Change ◽  
Natural Hazards ◽  
Environmental Changes ◽  
Lao Pdr ◽  
Water Levels ◽  
Participatory Action ◽  
The Face ◽  
Floods And Droughts ◽  
Outstanding Question

<p>The Lower Mekong Basin covers four countries, Lao PDR, Thailand, Cambodia and Vietnam. These countries are often affected by floods and sometimes by droughts. These natural hazards silently and adversely affect people’s livelihoods in the region. In the face of future environmental changes, especially climate change and dam construction along the Mekong River, patterns of floods and droughts are more likely to exacerbate the situation. For this case study of a vulnerable commune in this setting, I developed a hybrid model of the development and complexity paradigms to both organise my research data and extend my analysis. This holistic hybrid paradigm enabled me to explore the interrelationships between natural hazards, disasters, and vulnerability, and adopt a multidisciplinary approach in which I attempt to integrate disaster risk management and climate change adaptation models to highlight problems and to propose interventions. The results obtained indicate that in the future floods and droughts are likely to be more frequent and severe and just what impact additional dams currently being planned or built will have over the control of water levels remains an outstanding question. Plans need to be made to enable people to cope with floods and droughts because these can have a hugely detrimental impact on their livelihoods including crops and personal property, people, community infrastructure and environment. Although current coping strategies are in place, disasters still occur. Based on the vulnerability context of the Sustainable Livelihoods Framework and the Pressure and Release (PAR) model, I was able to show how vulnerability is exacerbated by dissonant social, economic, and political structures. This research also proposes an integrated framework, including adaptive management and participatory action research, as a way of monitoring interventions that could possibly resolve some of the challenges.</p>

scholarly journals ‘To fish or not to fish?’: fishing communities of Arctic Yakutia in the face of environmental change and political transformations

Polar Record ◽  
2017 ◽  
Vol 53 (3) ◽  
pp. 289-303 ◽  
Author(s):  
Stanislav Ksenofontov ◽  
Norman Backhaus ◽  
Gabriela Schaepman-Strub
Keyword(s):  
Climate Change ◽  
Soviet Union ◽  
Environmental Changes ◽  
Fishing Communities ◽  
Political Transformations ◽  
The Soviet Union ◽  
The Face ◽  
Increasing Temperature ◽  
Traditional Fishing ◽  
Fishing Regulations

ABSTRACTThis paper assesses the vulnerability of Arctic fishing communities. We hypothesise that climate change related trends, such as increasing temperature and altered seasonality, and shocks, such as the breakdown of the Soviet Union or new fishing regulations, increase vulnerability of local Arctic peoples and compromise the sustainability of their livelihoods. Research shows that over recent decades local people have observed environmental changes and a significant decrease in the number of fish caught. Fishing regulations introduced after the collapse of the Soviet Union burdened fishers with quotas and temporal limitations that have hindered their fishing activities. While the adaptability of traditional fishing techniques to seasonally changing conditions might indicate the potential to adapt to future conditions under climate change, fishing regulations appear to limit this potential to adapt.

scholarly journals Keeping ahead of floods and droughts: a case study of Sdau Kaong Commune, Cambodia

2021 ◽  
Author(s):  
◽  
Sopharo Oum
Keyword(s):  
Climate Change ◽  
Natural Hazards ◽  
Environmental Changes ◽  
Lao Pdr ◽  
Water Levels ◽  
Participatory Action ◽  
The Face ◽  
Floods And Droughts ◽  
Outstanding Question

<p>The Lower Mekong Basin covers four countries, Lao PDR, Thailand, Cambodia and Vietnam. These countries are often affected by floods and sometimes by droughts. These natural hazards silently and adversely affect people’s livelihoods in the region. In the face of future environmental changes, especially climate change and dam construction along the Mekong River, patterns of floods and droughts are more likely to exacerbate the situation. For this case study of a vulnerable commune in this setting, I developed a hybrid model of the development and complexity paradigms to both organise my research data and extend my analysis. This holistic hybrid paradigm enabled me to explore the interrelationships between natural hazards, disasters, and vulnerability, and adopt a multidisciplinary approach in which I attempt to integrate disaster risk management and climate change adaptation models to highlight problems and to propose interventions. The results obtained indicate that in the future floods and droughts are likely to be more frequent and severe and just what impact additional dams currently being planned or built will have over the control of water levels remains an outstanding question. Plans need to be made to enable people to cope with floods and droughts because these can have a hugely detrimental impact on their livelihoods including crops and personal property, people, community infrastructure and environment. Although current coping strategies are in place, disasters still occur. Based on the vulnerability context of the Sustainable Livelihoods Framework and the Pressure and Release (PAR) model, I was able to show how vulnerability is exacerbated by dissonant social, economic, and political structures. This research also proposes an integrated framework, including adaptive management and participatory action research, as a way of monitoring interventions that could possibly resolve some of the challenges.</p>

scholarly journals Impacts of climate change and environmental factors on reproduction and development in wildlife

2009 ◽  
Vol 364 (1534) ◽  
pp. 3313-3319 ◽  
Author(s):  
Stuart R. Milligan ◽  
William V. Holt ◽  
Rhiannon Lloyd
Keyword(s):  
Climate Change ◽  
Environmental Factors ◽  
Human Population ◽  
Environmental Changes ◽  
The Public ◽  
Public Media ◽  
Sense Of Security ◽  
False Sense ◽  
The Face ◽  
Impacts Of Climate Change

The robustness of the growth of the human population in the face of environmental impacts is in contrast to the sensitivity of wildlife. There is a danger that the success of reproduction of humans provides a false sense of security for the public, media and politicians with respect to wildlife survival, the maintenance of viable ecosystems and the capacity for recovery of damaged ecosystems and endangered species. In reality, the success of humans to populate the planet has been dependent on the combination of the ability to reproduce successfully and to minimize loss of offspring through controlling and manipulating their own micro-environment. In contrast, reproduction in wildlife is threatened by environmental changes operating at many different physiological levels.

Climate change: making decisions in the face of deep uncertainty

Nature ◽  
2020 ◽  
Vol 580 (7804) ◽  
pp. 456-456 ◽  
Author(s):  
Judy Lawrence ◽  
Marjolijn Haasnoot ◽  
Robert Lempert
Keyword(s):  
Climate Change ◽  
Deep Uncertainty ◽  
The Face

Restoring whitebark pine ecosystems in the face of climate change

2017 ◽  
Author(s):  
Robert E. Keane ◽  
Lisa M. Holsinger ◽  
Mary F. Mahalovich ◽  
Diana F. Tomback
Keyword(s):  
Climate Change ◽  
Whitebark Pine ◽  
The Face

Water scarcity and sustainability in the arid area of North America: Insights gained from a cross border perspective

2017 ◽  
Vol 7 (1) ◽  
pp. 6-18 ◽  
Author(s):  
Alejandro Yáñez-Arancibia ◽  
John W. Day
Keyword(s):  
Climate Change ◽  
North America ◽  
Water Scarcity ◽  
Economic Change ◽  
American Southwest ◽  
Arid Area ◽  
Border Region ◽  
Cross Border ◽  
Sharp Focus ◽  
The Face

The arid border region that encompasses the American Southwest and the Mexican northwest is an area where the nexus of water scarcity and climate change in the face of growing human demands for water, emerging energy scarcity, and economic change comes into sharp focus.

INTERCONNECTION OF SUSTAINABLE DEVELOPMENT COMPONENTS FOR THE INDIGENOUS PEOPLES OF THE NORTH

2020 ◽  
Vol 2 (8) ◽  
pp. 101-110
Author(s):  
N. N. ILYSHEVA ◽  
◽  
E. V. KARANINA ◽  
G. P. LEDKOV ◽  
E. V. BALDESKU ◽  
...  
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Economic Development ◽  
Indigenous Peoples ◽  
Ecological Footprint ◽  
Positive Relationship ◽  
The North ◽  
Strong Positive Relationship ◽  
The Face ◽  
The Relationship

The article deals with the problem of achieving sustainable development. The purpose of this study is to reveal the relationship between the components of sustainable development, taking into account the involvement of indigenous peoples in nature conservation. Climate change makes achieving sustainable development more difficult. Indigenous peoples are the first to feel the effects of climate change and play an important role in the environmental monitoring of their places of residence. The natural environment is the basis of life for indigenous peoples, and biological resources are the main source of food security. In the future, the importance of bioresources will increase, which is why economic development cannot be considered independently. It is assumed that the components of resilience are interrelated and influence each other. To identify this relationship, a model for the correlation of sustainable development components was developed. The model is based on the methods of correlation analysis and allows to determine the tightness of the relationship between economic development and its ecological footprint in the face of climate change. The correlation model was tested on the statistical materials of state reports on the environmental situation in the Khanty-Mansiysk Autonomous Okrug – Yugra. The approbation revealed a strong positive relationship between two components of sustainable development of the region: economy and ecology.

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