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The green open space is one of an effort in order to handling of the increasing the greenhouse gas emission, because green open space has an ability to absorbing the CO2 emission. The purpose of this research is to find out the potential of absorption capacity of CO2 by the public's green open space and to analyze the level of absorption of CO2 by green open space from transportation activity. The method in this research is calculate the value of CO2 emissions and counting the trees which has diameters more than 20 centimeter. The sufficiency of green open space was analyze and then compared the absorbing power of CO2 by trees with number of CO2 emissions that produced. Tampan district is produced the CO2 emissions from transportation which is high enough as much as 2.102.614.367 kilograms CO2/year. While the ability of CO2 absorption by the public's green open space in Tampan district only 7.979.245,86 kilograms CO2/year. The result of analysis show that the public's green open space in Tampan district that viewed from absorbing CO2 emissions of transportation is still not enough with percentage is only about 0,38%.

Silk worms is one kind of natural food like fish larvae because they contain good nutrients for the growth of fish larvae. This study aims to determine the appropriate amount of fertilizer and the implementation of systems of recirculation to the growth of silk worms. The research was conducted on July 29 to September 18, 2016 placed in a field laboratory of the Faculty of Fisheries and Marine University of Riau. The media used is in the form of sludge reservoirs, dedek smooth, tofu, chicken manure and EM4. While the materials used are silk worms obtained from collectors. Experimental method used was a completely randomized design (CRD) with 3 levels of the factor treatments and 3 repetitions. The treatments used: P0: without the use of chicken manure, P1: 500 g of chicken manure / 0.098 m2, P2: 600 g of chicken manure / 0.098 m2, and P3: 700 g of chicken manure / 0.098 m2. The data observed is the growth of biomass weight, average length, and water quality. The results of this study with the treatment of chicken manure fertilizer of different very significant effect (P 0.05). The average length of the highest in treatment P2 (1.83 cm). Water quality measured during the study was the temperature (25-29˚C), pH (6-7), dissolved oxygen (6,0-6,5 ppm), and CO2-free (2,0-3,5 ppm). From this study it can be concluded that giving different chicken manure can affect the growth of silk worms

Background: Integrating sustainability development' aspects in the design process is becoming, a growth area in companies. Consequently, sustainable product design has to consider the different aspects of sustainability throughout its life cycle phases in addition of other requirements. This integration is becoming more complicated due the difficulty of managing the constraints and alternatives related to the product and stakeholders needs. This study aims to highlights the most used Multi-Criteria Decision Making (MCDM) tools and methods used in sustainable product design process. Contribution: Product design process involves interesting decisional tasks such as the choice of materials, standard parts, technical solutions. Hence, the contribution of this work is to help designer to adopt relevant MCDM tools and methods that can be integrated to other tools to facilitate and to justify their decisional tasks. Method: Several methods have been affected to solve the problems related to this complexity such as MCDM. A literature review was conducted based on Siencedirect and GoogleScholar articles databases. After filtering more than 200 articles only 62 articles were considered to analyze the correlation between sustainable product design and MCDM. Results: Classified MCDM use according to the type of choices to achieve SPD goals. This paper allowed us to find matches between MCDM methods and SPD problem. The majority of case studies result show that a large portion of sustainable design methods, techniques, and tools are applied to the sustainable product' along its different life cycle phases Conclusion: It is noticed that the use of MCDM methods are an important outcome in the sustainable product design process and deeply helps designers to make suitable choices. Also, several matches relating MCDM, other methods and sustainable product design sphere are discussed

Fish aggregating devise (FAD) based fisheries have become a dominant economic support (about 90%) of the community of the Kei Islands in Southeast Maluku Regency. However, it will not last long if the fisheries is not well managed and financially balanced. This study aimed to analyze the attributes of sustainable FADs-based. fisheries and to assess the financial feasibility for an investment. The method used was the analysis of FADs investment, the consumption and income of the fishermen's households of mini purse seine and FADs, contribution to the local revenues, and the growth of fishing supporting business. The analyses results showed that the investment for a FADs was of Rp. 13,714,000, mini purse seine of Rp. 426,875,000, handline of Rp. 71,75 million, and troll lines of Rp. 72,75 million, household consumption of Rp. 13,625,730. The income of FAD fisherman was of Rp. 164,143,125, mini purse seine fisherman of Rp. 164,143,125, and entrepreneur of Rp. 328,286,250. The index value of the sustainable FAD management was 62.17 indicating a sustainable index.

There is no denying the fact that developing countries, like India, would need energy to feed its development, while at the same time trying to keep in check its carbon emissions. If India intends to increase the living standard of its people, attain increased level of industrialisation and pursue the projects of national importance nuclear energy is an extremely reliable de-carbonised source of energy. The Indian Nuclear energy capacity, however, has not augmented even after the Indo-US nuclear deal. Also, the sluggish growth of the nuclear energy prior to the inking of the landmark Indo-US nuclear deal was attributed to the lack of adequate of financing, technological denial regimes, continued non-availability of uranium at low cost, the limitations of the Indian manufacturing industry and negative public perceptions about nuclear energy. This paper attempts to look into the two main challenges faced by Indian civil nuclear power programme. It attempts to compile various reasons as to why despite the nuclear energy being projected as one of the main energy sources since the inception of the Indian nuclear programme, the rise of nuclear energy has lacked progress. DOI: 10.5281/zenodo.4318564

Climate change is difficult phenomenon to be understood by ordinary community. Whereas perception and knowledge of climate change will influence mitigation and adaptation, which can decrease risks of climate change impact. The research aims to find out community's perception about climate change and adaptation efforts which have been done by communities of Sarawet Village at North Minahasa Regency. Perception and adaptation data were obtained through interview and focus group discussion. The result shows that 96.67 % of community has experienced the symptoms and impacts of climate change, which perceived as extreme season or the shift of rain and drought season. The most perceived climate change impacts are crop failure, less income from agriculture and drought. This perception indicates a lack of environmental and forestry information. The adaptation efforts that have been done by the community include change plant species that need lack water as well as fulfill needs of clean water from the central well and utilize springs from upstream. Based on SWOT analysis An appropriate strategy to encourage adaptation in Sarawet village is done through increasing the adaptive capacity of the community

Climate change vulnerability is the function of exposure, sensitivity, and adaptive capacity of its natural and socioeconomic systems. Following spatial “scale” of the assessment, administrative-territorial units were selected for this study. A field survey questionnaire was used to collect data for the study based on the sample size of 500 questionnaires that was administered to household heads in the study area. In the questionnaire, questions were designed to give respondents the opportunity to choose from several alternatives given in the instrument while descriptive statistics was for the analysis of data. Descriptive statistics analysis based on mean ranking was carried out to identify the level of peoples' vulnerability to climate change in the study area. The exposure assessment was based on the response analysis of baseline information. The sensitivity assessment for the study was analyzed by using physiographical and socioeconomic characteristics, described by a set of specific indicators and responses of the residents. The adaptive capacity was captured by general economic and agricultural indicators, taking into consideration the major occupation the predominant lifestyle of the residents. Through a ranking approach, the relative vulnerability of each ATU was calculated by summing its sensitivity and adaptive capacity ranks; the latter were obtained as combinations of their primary indicator ranks, arranged in an increasing and decreasing order, respectively. The major climate change exposure pathway in the study area were reduction in green environment, decrease in total annual rainfall, warmer weather, early cessation of rainfall, late on-set of rainfall and shrinkage of water bodies. The major sensitivity to climate change was decrease in crop yield, whereas increase in cost of food crops, drought incidents, famine, poverty, indiscriminate falling down of trees and disaster. It was also established that the major adaptive strategies to climate change in the study area were irrigation farming, use of organic manure, planting of drought tolerant varieties and early planting.

According to historical climatology, climate and climate change have always had an impact on human society. Anthropological climate change is happening Fast and will indisputably affect the global economy for decades to come. This paper provides a review of the expectations of leading economists and organisations on the magnitude of this effect. It clarifies the different approaches used to quantify the future economic loss attributed to climate change. Despite the different approaches used, all the authors examined in the paper foresee a negative impact of the climate change on the global economy. The different approaches result in different predictions about the magnitude of the impact. The authors express similar positions about the geography of the damages that will be caused by the climate change. The most affected countries will be most likely those in Sub-Saharan Africa and South Asia. A moral paradox arises that the least developed countries that are not at fault for anthropogenic climate change will have to carry the economic burden of its consequences. The paper also suggests and compares a variety of measures that could be taken in order to adopt to and mitigate the negative impacts of climate change on the economies.

This paper presents experimental results of the performance and exhaust pollution of spark ignition engines using gasoline-ethanol blended fuels at the rates of ethanol 0, 10, 15, 20 and 25% by volume. The experiment was conducted on the Daewoo A16DMS experimental engine at the internal combustion engine laboratory of the Danang University of Science and Technology. Experimental conditions were established to characterize the engine speed at the throttle position of 50% for the speed range from 1250 to 4500 rpm. Results show an improvement in torque, power, fuel consumption and engine emissions when using E10, E15, compared to gasoline (E0) at 50% throttle valve opening at speed range from 2000 to 4500 rpm; The E20 and E25 are at a disadvantage at all speeds. The presence of the ethanol in gasoline remarkably reduces the emission of CO and HC but increases NOX simultaneously.

The object of research is the methodology of existing models of climate change and the identification of areas that are suitable for agricultural production. The consequences of natural disasters (floods, tornadoes, tornadoes, earthquakes, volcanic eruptions etc.) are the destruction of local ecosystems and the local economy, the emergence of threats to food and water supply, the creation of social conflicts, internal and external migration. Damage from natural disasters is estimated at billions of dollars. The economies of countries in which natural disasters are being synchronized cannot recover on their own and need International assistance, especially the placement of climate refugees in other countries. An analysis of recent research and publications shows that its authors do not even pose such a problem. In the period from 2011 to 2020 alone, the number of natural disasters in the world increased 7 times, in particular in Europe – 41 times. The study shows that the concept of anthropogenic impact on climate change, sustainable development and possible adaptation through environmental and energy and resource conservation measures must be considered erroneous. International spending on climate change adaptation programs around the world is inefficient. The theoretical basis on which these concepts have been built so far needs to be revised, and the environmental policy of all countries of the world is subject to radical transformation. The practical significance of research is to improve the model of climate change, which is used to develop forecast scenarios for world events, based on the dependence of CO2 emissions. from anthropogenic human activity. Since the results of any mathematical model depend on the input data and the correlation of the relationships embedded in such a model, the percentage of reliability and probability of implementation of such a model is also estimated. Therefore, climate models developed at the initiative of the International Group of Experts on Climate Change cannot be used as a basis for substantiating recommendations for the transformation of agriculture in accordance with climate change.