scholarly journals Remarks on ISRU and ISFR Technologies for Manned Missions on Moon and Mars

2012 ◽  
Vol 14 (3) ◽  
pp. 243
Author(s):  
A. Concas ◽  
G. Corrias ◽  
R. Orrù ◽  
R. Licheri ◽  
M. Pisu ◽  
...  
Keyword(s):  
Climate Change ◽  
Natural Resources ◽  
Fossil Fuels ◽  
Novel Technologies ◽  
Space Colonization

Space colonization and exploitation of extra-terrestrial natural resources could help humanity in facing various Earth problems. In this regard, production of energy and materials starting from Moon and Mars natural resources as well as the transportation of humans in space could be considered the long term remedy to issues such as overpopulation, depletion of fossil fuels, climate change as well as reduction of available natural resources. Along theses lines, two recently filed patents related to use of novel technologies for the in situ exploitation of natural resources available on Moon and Mars have been developed.

scholarly journals Mediterranean Sea climatic indices: monitoring long term variability and climate changes

2018 ◽  
Author(s):  
Athanasia Iona ◽  
Athanasios Theodorou ◽  
Sarantis Sofianos ◽  
Sylvain Watelet ◽  
Charles Troupin ◽  
...  
Keyword(s):  
Climate Change ◽  
Time Series ◽  
Mediterranean Sea ◽  
Climate Changes ◽  
Salt Content ◽  
Climatic Indices ◽  
In Situ Observations ◽  
The Mediterranean

Abstract. We present a new product composed of a set of thermohaline climatic indices from 1950 to 2015 for the Mediterranean Sea such as decadal temperature and salinity anomalies, their mean values over selected depths, decadal ocean heat and salt content anomalies at selected depth layers as well as their long times series. It is produced from a new high-resolution climatology of temperature and salinity on a 1/8° regular grid based on historical high quality in situ observations. Ocean heat and salt content differences between 1980–2015 and 1950–1979 are compared for evaluation of the climate shift in the Mediterranean Sea. The spatial patterns of heat and salt content shifts demonstrate in greater detail than ever before that the climate changes differently in the several regions of the basin. Long time series of heat and salt content for the period 1950 to 2015 are also provided which indicate that in the Mediterranean Sea there is a net mean volume warming and salting since 1950 with acceleration during the last two decades. The time series also show that the ocean heat content seems to fluctuate on a cycle of about 40 years and seems to follow the Atlantic Multidecadal Oscillation climate cycle indicating that the natural large scale atmospheric variability could be superimposed on to the warming trend. This product is an observations-based estimation of the Mediterranean climatic indices. It relies solely on spatially interpolated data produced from in-situ observations averaged over decades in order to smooth the decadal variability and reveal the long term trends with more accuracy. It can provide a valuable contribution to the modellers' community, next to the satellite-based products and serve as a baseline for the evaluation of climate-change model simulations contributing thus to a better understanding of the complex response of the Mediterranean Sea to the ongoing global climate change. The product is available here: https://doi.org/10.5281/zenodo.1210100.

Global Justice, Natural Resources, and Climate Change

2019 ◽  
Author(s):  
Megan Blomfield
Keyword(s):  
Climate Change ◽  
Natural Resources ◽  
Greenhouse Gas ◽  
Global Justice ◽  
Fossil Fuels ◽  
Natural World ◽  
Human Beings ◽  
The Face ◽  
Human Conflict ◽  
Political Communities

It is commonly recognized that in pursuit of climate justice we must navigate many conflicting claims over natural resources. This has long been obvious in the case of fossil fuels and greenhouse gas sinks including the atmosphere and forests; but it is ever more apparent that responses to climate change also threaten to spur new competition over land and extractive resources. This makes climate change an instance of a broader, more enduring and—for many—all too familiar problem: the problem of human conflict over how the natural world should be cared for, protected, shared, used, and managed. This work develops a new theory of global egalitarianism for natural resources, rejecting both permanent sovereignty and equal division, which is then used to examine the problem of climate change. It formulates principles of resource right designed to protect the ability of all human beings to satisfy their basic needs as members of self-determining political communities, where it is understood that the genuine exercise of collective self-determination is not possible from a position of significant disadvantage in global wealth and power relations. These principles are used to address the question of where to set the ceiling on future greenhouse gas emissions and how to share the resulting emissions budget, in the face of conflicting claims to fossil fuels, climate sinks, and land. It is also used to defend an unorthodox understanding of responsibility for climate change as a problem of global justice, based on its provenance in historical injustice concerning natural resources.

Climate Change, Global Warming, and Agricultural Droughts

2005 ◽  
Author(s):  
Gennady V. Menzhulin ◽  
Sergey P. Savvateyev
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Human Activities ◽  
Fossil Fuels ◽  
Weather Conditions ◽  
Climatic Conditions ◽  
Spatial Variations ◽  
Geological Time ◽  
The Earth

The climate of a region is a representation of long-term weather conditions that prevail there. Over the millions of years of the existence of the atmosphere on the earth, the climate has changed all the time; ice ages have come and gone, and this has been the result of natural causes. Recently (on geological time scales) the human population has expanded—from half a billion in 1600, to 1 billion in 1800, to almost 3 billion in 1940, and it now stands at about 6 billion. The climate may well now be influenced not only as before by natural events but also by human activities. For example, we are producing vast amounts of carbon dioxide by burning fossil fuels, and this is causing the temperature of the earth to rise significantly. If we argue that we should control our activities to preserve this planet as a habitable environment for future generations, we need to have some scientific knowledge of the effects of our present activities on climate. In recent years the evidence has been accumulating that on the time scale of decades there is global warming (i.e., the global annual mean surface temperature is increasing). There is also evidence accumulating that part of this increase is a consequence of human activities. The evidence is largely statistical. Within this trend there are bound to be temporal fluctuations and spatial variations. Moreover, in addition to the increase in temperature, it is reasonable to assume that there is, overall, an increase in evaporation of water from the surface of the earth and that there will be a consequent increase in precipitation. But within this overall scenario there are bound to be local variations; some areas may experience more precipitation, but some areas may experience less precipitation. The effect of climate change on the proneness to drought is therefore not uniform but can be expected to vary from place to place. Therefore, whether one is concerned with considering the relation between climate and proneness to drought from the historical evidence or whether one is trying to use models to predict the effect of future climatic conditions, it is necessary to consider the local spatial variations.

scholarly journals Spatio-Temporal Assessment of Climate Change Impact on Wave Energy Resources Using Various Time Dependent Criteria

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 768 ◽  
Author(s):  
Bahareh Kamranzad ◽  
George Lavidas ◽  
Kaoru Takara
Keyword(s):  
Climate Change ◽  
Indian Ocean ◽  
Wave Energy ◽  
Fossil Fuels ◽  
Energy Resources ◽  
Southern Indian Ocean ◽  
Future Change ◽  
Short Term ◽  
Energy Potential

The wave energy resources in the Indian Ocean can be considered as a potential alternative to fossil fuels. However, the wave energy resources are subject to short-term fluctuations and long-term changes due to climate change. Hence, considering sustainable development goals, it is necessary to assess both short-term (intra-annual) variation and long-term change. For this purpose, the simulated wave characteristics were utilized, and the wave power and its variation and change were analyzed in the whole domain and nearshore areas. The short-term fluctuation was investigated in terms of monthly and seasonal variations and the future change was discussed based on absolute and relative changes. Both analyses show that the Southern Indian Ocean, despite experiencing extreme events and having higher wave energy potential, is more stable in terms of both short and long-term variation and change. The assessment of the total and exploitable storages of wave energy and their future change revealed the higher potential and higher stability of the nearshores of the Southern Indian Ocean. It can be concluded that based on various factors, the south of Sri Lanka, Horn of Africa, southeast Africa, south of Madagascar and Reunion and Mauritius islands are the most suitable areas for wave energy extraction.

scholarly journals The Drivers and Barriers of Renewable Energy Applications and Development in Uganda: A Review

2018 ◽  
Vol 1 (1) ◽  
pp. 9-39 ◽  
Author(s):  
Adebayo Fashina ◽  
Mustafa Mundu ◽  
Oluwole Akiyode ◽  
Lookman Abdullah ◽  
Dahiru Sanni ◽  
...  
Keyword(s):  
Climate Change ◽  
Energy Source ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
Evidence Based ◽  
Global Awareness ◽  
Energy Applications ◽  
The Status ◽  
Barriers And Challenges

Following the increasing global awareness of the dangers posed by the present state of climate change, many countries such as Uganda have adapted long-term plans for a transition to decarbonised economies. A major strategy for decarbonisation is to replace fossil fuels with renewable energy (RE) sources as the fundamental energy source. Uganda has substantial RE resources for the provision of energy services and production, yet these resources remain untapped. It is therefore crucial that the use of these abundant resources should be heightened. This paper examines and discusses the potential and current RE utilization and development in Uganda from the perspective of sustainable development. The status of the different RE resources and their application/utilization, including details of existing projects in the country, are carefully explored and discussed. The possible drivers for a huge advancement of RE applications and development in Uganda are also discussed before elucidating the major barriers and challenges faced by the energy sector as regards RE. Measures and policies required to facilitate the utilization of RE in Uganda are proposed. These evidence-based policies could guide the delivery of affordable and sustainable energy solutions for all by 2030 in Uganda.

scholarly journals Development Process of Energy Mix towards Neutral Carbon Future of the Slovak Republic: A Review

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1263
Author(s):  
Martin Beer ◽  
Radim Rybár
Keyword(s):  
Climate Change ◽  
Free Energy ◽  
Global Climate Change ◽  
Human Activities ◽  
Fossil Fuels ◽  
Development Process ◽  
Slovak Republic ◽  
Global Climate ◽  
Energy Mix

Global climate change is putting humanity under pressure, which in many areas poses an unprecedented threat to society as we know it. In an effort to mitigate its effects, it is necessary to reduce the overall production of greenhouse gases and thus, dependence on fossil fuels in all areas of human activities. The presented paper deals with an evaluation of energy mix of the Slovak Republic and four selected neighboring countries in the context of achieving their carbon neutral or carbon negative future. The development of the evaluated energy mixes as well as greenhouse gas emissions is presented from a long-term perspective, which makes it possible to evaluate and compare mutual trends and approaches to emission-free energy sectors.

scholarly journals The Dynamics of Public Perceptions and Climate Change in Swat Valley, Khyber Pakhtunkhwa, Pakistan

2021 ◽  
Vol 13 (8) ◽  
pp. 4464
Author(s):  
Muhammad Suleman Bacha ◽  
Muhammad Muhammad ◽  
Zeyneb Kılıç ◽  
Muhammad Nafees
Keyword(s):  
Climate Change ◽  
Natural Resources ◽  
Local Adaptation ◽  
Fossil Fuels ◽  
Sampling Technique ◽  
Public Perceptions ◽  
Adaptation Strategies ◽  
Extreme Weather Events ◽  
Sources Of Information ◽  
Prime Concern

With rising temperatures, developing countries are exposed to the horrors of climate change more than ever. The poor infrastructure and low adaptation capabilities of these nations are the prime concern of current studies. Pakistan is vulnerable to climate-induced hazards including floods, droughts, water shortages, shifts in weather patterns, loss of biodiversity, melting of glaciers, and more in the coming years. For marginal societies dependent on natural resources, adaptation becomes a challenge and the utmost priority. Within the above context, this study was designed to fill the existing research gap concerning public knowledge of climate vulnerabilities and respective adaptation strategies in the northern Hindukush–Himalayan region of Pakistan. Using the stratified sampling technique, 25 union councils (wards) were selected from the nine tehsils (sub-districts) of the study area. Using the quantitative method approach, structured questionnaires were employed to collect data from 396 respondents. The study reveals varying public perceptions about different factors contributing to the causes and impacts of climate change and the sources of information in the three zones of the study area. The primary causes of climate change are deforestation, industrial waste, anthropogenic impurities, natural causes, and the burning of fossil fuels exacerbated by increased population. Changes in temperature, erratic rainfalls, floods, droughts, receding glaciers, and extreme weather events are some of the impacts observed over the past decades. While limiting the indiscriminate use of fossil fuels combined with government-assisted rehabilitation of forests can help combat climate change, the lack of proper education and economic, social, and governance barriers are hindering the local adaptation strategies. In addition, reduce environmental pollution (air, water, soil, etc.) and plantation polluted areas with suitable plants, are the two main actions in combating climate change. This study recommends policy interventions to enhance local adaptation efforts through building capacity, equipping local environmental institutions, discouraging deforestation, and ensuring sustainable use of natural resources.

scholarly journals The Influence of COVID-19 on Global CO2 Emissions and Climate Change: A Perspective from Malaysia

2021 ◽  
Vol 13 (15) ◽  
pp. 8461
Author(s):  
Chung Hong Tan ◽  
Mei Yin Ong ◽  
Saifuddin M. Nomanbhay ◽  
Abd Halim Shamsuddin ◽  
Pau Loke Show
Keyword(s):  
Climate Change ◽  
Co2 Emissions ◽  
Fossil Fuels ◽  
Food Education ◽  
Economic Downturns ◽  
Rapid Spread ◽  
Co2 Levels ◽  
Carbon Dioxide Co2 ◽  
Global Carbon

The rapid spread of coronavirus disease 2019 (COVID-19) in early 2020 prompted a global lockdown from March to July 2020. Due to strict lockdown measures, many countries experienced economic downturns, negatively affecting many industries including energy, manufacturing, agriculture, finance, healthcare, food, education, tourism, and sports. Despite this, the COVID-19 pandemic provided a rare opportunity to observe the impacts of worldwide lockdown on global carbon dioxide (CO2) emissions and climate change. Being the main greenhouse gas responsible for rising global surface temperature, CO2 is released to the atmosphere primarily by burning fossil fuels. Compared to 2019, CO2 emissions for the world and Malaysia decreased significantly by 4.02% (−1365.83 MtCO2) and 9.7% (−225.97 MtCO2) in 2020. However, this is insufficient to cause long-term impacts on global CO2 levels and climate change. Therefore, in this review, we explored the effects of worldwide lockdown on global CO2 levels, the impacts of national lockdown on Malaysia’s CO2 emissions, and the influence of climate change in Malaysia.

scholarly journals Investigating the Key Success Factors of Social Marketing in Promoting Environmental Consciousness: A Dematel-Based Approach

2020 ◽  
Vol 12 (2) ◽  
pp. 1 ◽  
Author(s):  
Chi-Horng Liao
Keyword(s):  
Climate Change ◽  
Decision Making ◽  
Natural Resources ◽  
Social Marketing ◽  
Success Factors ◽  
Success Factor ◽  
Environmental Consciousness ◽  
Key Success Factors ◽  
Future Success

Due to the overuse of the environment and natural resources, our environment has suffered long-term damage and natural disasters have been exacerbated by climate change, resulting in a significant impact on people’s livelihood and security. People must consider saving the environment as everyone’s responsibility. Hence, Environmental consciousness should be promoted to inspire public participation. This study used the Decision Making Trial and Evaluation Laboratory (DEMATEL) method to identify the key success factors of social marketing in promoting environmental consciousness. The DEMATEL method has been proven highly effective in gathering the views of experts and thereby providing information of greater reliability in many areas. The results of this research suggest that “Take advantage of existing successful campaign”, “Using appropriate media channel to increase the participation”, and “Enhancing campaign success by appropriate research” are the main strategies for promoting environmental consciousness. The findings of this study may be used in future success factor evaluations where social marketing is compared with other measures aiming to increase the efficiency of the campaign.

scholarly journals Evaluation of snow extent time series derived from Advanced Very High Resolution Radiometer global area coverage data (1982–2018) in the Hindu Kush Himalayas

2021 ◽  
Vol 15 (9) ◽  
pp. 4261-4279
Author(s):  
Xiaodan Wu ◽  
Kathrin Naegeli ◽  
Valentina Premier ◽  
Carlo Marin ◽  
Dujuan Ma ◽  
...  
Keyword(s):  
Climate Change ◽  
High Resolution ◽  
Land Cover ◽  
Snow Cover ◽  
Area Coverage ◽  
Slope Aspect ◽  
Hindu Kush ◽  
Very High

Abstract. Long-term monitoring of snow cover is crucial for climatic and hydrological studies. The utility of long-term snow-cover products lies in their ability to record the real states of the earth's surface. Although a long-term, consistent snow product derived from the ESA CCI+ (Climate Change Initiative) AVHRR GAC (Advanced Very High Resolution Radiometer global area coverage) dataset dating back to the 1980s has been generated and released, its accuracy and consistency have not been extensively evaluated. Here, we extensively validate the AVHRR GAC snow-cover extent dataset for the mountainous Hindu Kush Himalayan (HKH) region due to its high importance for climate change impact and adaptation studies. The sensor-to-sensor consistency was first investigated using a snow dataset based on long-term in situ stations (1982–2013). Also, this includes a study on the dependence of AVHRR snow-cover accuracy related to snow depth. Furthermore, in order to increase the spatial coverage of validation and explore the influences of land-cover type, elevation, slope, aspect, and topographical variability in the accuracy of AVHRR snow extent, a comparison with Landsat Thematic Mapper (TM) data was included. Finally, the performance of the AVHRR GAC snow-cover dataset was also compared to the MODIS (MOD10A1 V006) product. Our analysis shows an overall accuracy of 94 % in comparison with in situ station data, which is the same with MOD10A1 V006. Using a ±3 d temporal filter caused a slight decrease in accuracy (from 94 % to 92 %). Validation against Landsat TM data over the area with a wide range of conditions (i.e., elevation, topography, and land cover) indicated overall root mean square errors (RMSEs) of about 13.27 % and 16 % and overall biases of about −5.83 % and −7.13 % for the AVHRR GAC raw and gap-filled snow datasets, respectively. It can be concluded that the here validated AVHRR GAC snow-cover climatology is a highly valuable and powerful dataset to assess environmental changes in the HKH region due to its good quality, unique temporal coverage (1982–2019), and inter-sensor/satellite consistency.

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