• Energy Research
• other engineering and technologies close
• 12. Responsible consumption close
• 1. No poverty close
• UZ close

Abstract The amount of household solid waste (HSW) has been significantly increasing due to a rapid population growth and economic development. HSW management is immensely sensitive and complicated problem not only in rapidly developing countries like Uzbekistan but also in developed countries with advanced economies.The accumulated waste has been causing a number of serious environmental problems such as release of the most dangerous greenhouse gases (CO2, N2O, CH4) in the atmosphere which misbalance radiation in a planet’s atmosphere causing a global warming. However, this waste can be friendly in terms of its potential to be used as energy source. HSW into energy conversion technologies has been playing a vital rolein order to successfully address global challenges suchas fossil fuel dependency, emission control and waste management issues.The most promising technology for conversions can be performed using thermochemical processes (e.g., pyrolysis or gasification).These thermochemical technologies can be used to convert solid waste into liquid and gaseous fuels, and this has already been studied sufficiently by other researchers. This article recommends a novel concept for intensification of value-added solid and liquid products recovery from HSW using hydrothermal carbonization and plasma treatment.

Since turning carbon neutral is regarded as a major macroeconomic agenda worldwide, this study examines whether financial globalization and good governance can help Brazil, Russia, India, China, South Africa, and Turkey in achieving carbon neutrality. Considering the period of analysis from 2000 to 2020 and utilizing robust econometric methods, it is observed that the environmental consequences vary across different components of financial globalization. In particular, the results validate the pollution haven hypothesis by confirming the carbon emission-boosting effect of de facto financial globalization indicators. In contrast, the pollution halo effect hypothesis is verified by the finding of the carbon emission-abating effect of de jure financial globalization indicators. Besides, promoting good governance is evidenced to impose carbon emission-mitigating impact in the long-run. The findings also authenticate the existence of the Environmental Kuznets Curve (EKC) hypothesis for the emerging countries of concern. Finally, for both the short and long runs, it is found that the non-renewable to renewable energy transition contributes to lower discharges of carbon dioxide, while urbanization results in the amplification of the carbon emission figures. Considering these critically important findings, it is necessary for these countries to impose restrictions on the influx of unclean foreign direct investment, facilitate and ease the investment process for foreign investors for investing in environment-friendly projects, promote good governance, and adopt green economic growth and sustainable urbanization policies by developing their respective renewable energy sectors.

This paper describes the first experience for Uzbekistan in mammals' fauna inventory in the context of large administrative districts. Tashkent region was chosen as a model territory for researching – as an integral natural area with natural geographical boundaries. A revision of the composition and assessment of the fauna current conditions of economically significant mammals of this region was carried out. The primary limiting factors and threats to the existence of these species were analyzed. The permissible standards for the removal of economically significant mammalian species from the natural environment were determined, based on the data of the abundance and their habitats conditions. Standard approaches and methods for inventory have been developed: data collection and storage; working with sources of existing information; field research as the gaps closing basic method. Based on the results of the research, standard species profiles were prepared for 17 economically significant mammalian species, including data on distribution, landscape location, abundance, and permissible operational loads. A proposal to change the current conservation status of the Long-tailed Marmot, Corsac Fox and Steppe Polecat was justified. These species were previously considered as hunting objects, but now they have become rare. The impact of introduced and invasive species – Coypu, Muskrat, American Mink and Norway Rat on the native fauna was determined. The analysis of negative impacts on the species allowed to recommend a number of applied measures for the sustainable use of biological resources.

Comparatively, the results of experimental studies of pyrolysis of bio-plant material and oil sludge were studied, which gave similar results. The article provides scientific and technical information on the problems of processing solid waste and residues of biological origin. It has been shown that by thermal destruction, it is possible to obtain hydrocarbons of a gaseous, liquid consistency, and solid mass, preferably consisting of hydrocarbons with a small number of hydrocarbon residues.

The study aims to explore the asymmetric impact of financial globalisation on renewable CO2 emissions for selected Asian economies for a time span from 1990 to 2019. A sample of 35 economies is selected on the basis of the availability of data. To get the estimates of the variables, the analysis has applied FMOLS and DOLS estimation methods. The linear estimate of financial globalisation in the FMOLS model is negative and significant but positive and insignificant in the DOLS model. The estimates attached to positive financial globalisation are negatively significant in both FMOLS and DOLS models, implying that an increase in financial globalisation causes the environmental quality to improve. Similarly, the estimates attached to negative financial globalisation in both FMOLS and DOLS are negative and suggest that a fall in financial globalisation causes the environmental quality to deteriorate. The magnitudes of positive and negative changes are different; hence, they have a significantly different impact on environmental quality. The robust results clearly indicate that the effects of financial globalisation on CO2 emissions are asymmetric. Therefore, the policymakers should focus on positive as well as negative changes in financial globalisation while considering the impact of financial globalisation on CO2 emissions in Asian regions.

Abstract In the world, special attention is paid to targeted research on water resources management and efficient use of irrigation water resources. In this regard, one of the main tasks is to improve the technique of irrigation of fields using cheap chemical and technical means, the development of new methods of water-saving irrigation, the development of the theory of water-saving technologies in irrigation of fields. In this regard, the use of inexpensive interpolymers to reduce soil composition and irrigation water infiltration is of particular importance.

The new generation network and technology is changing the world day by day, so does in area of Agriculture. Agriculture is the basic stone of economic development in the transition countries. In the past decade, Information communication Technology is enriching people’s communication, which is the important criteria of knowledge society. In developed countries, ICT for agriculture is quite important. According to last research findings the technology contribution for Agriculture in developed countries is around 70 per cent. In developing countries such kind of research is not provided. The article analysis the contribution of the new generation ICT network investment for agriculture employing the Solow Residual theory and Cobb-Douglas Production function.

Poor infrastructure quality hinders the country's stable economic growth and competitiveness in international markets. The quality of life declines when the infrastructure is underdeveloped. Public-private partnership allows attracting additional sources of funding and receiving additional privileges from the state. Public-private partnerships in infrastructure benefit the economy, national politics, the private sector, as well as the population. The article examines the features of the formation and development of public-private partnerships in the development of the national economy of the Republic of Uzbekistan. The directions of innovative development are selected. The problems that require solutions for the continuous development of an innovative economy are identified. The aim of the study is to reveal the essence of public-private partnership in infrastructure, analyze the current state and its role, place in the economy of the Republic of Uzbekistan. The object of the research is economic relations in relation to public-private partnerships associated with the process of communication between the state and interested individuals, legal entities and international organizations. The subject of the research is the economic, social, legal aspect of the functioning of the forms of public-private partnership in the implementation of the functions of the state. The methodology laid the foundations for general scientific methods, general logical methods of cognition, systemic, logical, analysis, synthesis, deduction and induction, modeling and other methods. Based on the results of the study, conclusions were drawn to increase the attractiveness of PPP implementation in infrastructure.