Reducing agricultural nitrous oxide emissions in China: the role of food production, forest cover, income, trade openness, and rural population.

In the light of China's carbon-neutral goal, this study examines how food production, forest cover, trade openness, and rural population contribute to the quest of addressing China's agricultural nitrous oxide emissions. Time series data ranging from 1971 to 2018 was used for analysis in this study. The autoregressive distributed lag (ARDL) technique was employed to evaluate potential cointegration as well as to ascertain the long and short-run effects of food production, forest cover, income, trade openness, and rural population on agricultural nitrous oxide emission. The Toda-Yamomoto causality analysis was also used to identify the causal relations between covariates (food production, forest cover, income, trade openness, and rural population) and the outcome variable (agricultural nitrous oxide emission). The long-run evidence is that rural population in itself tends to increase agricultural nitrous oxide emissions likewise food production. There is also validation of the existence of environmental Kuznets curve for agricultural nitrous oxide emissions. Moreover, income interacts with rural population to reduce agricultural nitrous oxide emissions in the long-run. Causality analysis indicated rural population affects the level of forest cover; forest cover is found to cause agricultural nitrous oxide emissions but the converse is not established, and income as well as the interaction between income and rural population determines agricultural nitrous oxide emissions. The short-run dynamics results establish an oscillatory equilibrium convergence for agricultural nitrous oxide emissions in event of structural disturbances. From the findings, the EKC hypothesis is relevant by offering avenue to reduce emission. Thus, income growth remains helpful in addressing nitrous oxide emission from the agricultural sector. However, research is needed to unravel why nitrous oxide tends to increase in many forest areas. Since food production cannot be halted, policy makers need to enhance the uptake of efficient food production technologies including developing and using more renewable energy for food production. It is important for authorities to attend to rural development in order to mitigate agricultural nitrous oxide emissions in China.

Climate change mitigation role of renewable energy consumption: Does institutional quality matter in the case of reducing Africa's carbon dioxide emissions?

Renewable energy and institutions have emerged among other variables touted to address climate change problems. However, empirical results have been conflicting. With a relatively poorer state of institutional quality and a lower level of renewable energy development amidst rising carbon dioxide (CO2) emissions in Africa, the study assesses: a) the direct effect of renewable energy and institutional quality on CO2 emissions in Africa; and b) the moderation role of institutional quality on the effect of renewable energy on CO2 emissions in Africa. The study relies on panel data covering 2002-2021 for 32 African countries. The Fully-Modified OLS regression method is employed to analyze the data based on the environmental Kuznets curve (EKC) hypothesis and Stochastic Impacts by Regression on Population, Affluence, & Technology (STIRPAT) model. The results show that urbanization and trade openness increase CO2 emissions. Although income has a positive effect on carbon emissions, the square term has a negative confirming the EKC hypothesis. Renewable energy also reduces CO2 emissions. Institutional quality variables of control of corruption, rule of law, regulatory quality, political stability and absence of violence, voice and accountability, government effectiveness and institutional index created from the above indicators reduce CO2 emissions. In addition, except government effectiveness, the remaining indicators of institutional quality negatively moderate the effect of renewable energy on CO2 emissions. The results among other things imply that intensifying the development and usage of renewable energy would help address the rising carbon dioxide emissions trend in Africa. Also, strengthening institutions promises to reduce CO2 emissions.

Realizing the 2050 Paris climate agreement in West Africa: the role of financial inclusion and green investments.

International organizations have emphasized the importance of global economies supporting efforts to combat climate change. The Paris Agreement or Agenda 2050 urges nations to ensure that the increase in global temperature is limited to 1.5 °C. Studies have analyzed the factors that contribute to harmful emissions, particularly carbon dioxide emissions, in order to limit temperature rise. However, since there are other equally harmful pollutants, this study evaluates the impact of financial inclusion and green investment on reducing greenhouse gas emissions. The study uses data from West Africa, where environmental pollution has significantly increased. The study employed regression analysis while controlling for economic growth, foreign direct investment (FDI), and energy consumption. The study's key findings reveal that financial inclusion and green investment have a monotonic effect on reducing greenhouse gas emissions. Additionally, the study confirms the environmental Kuznets curve hypothesis and the pollution haven effect for the region. Technological innovation reduces pollution, but green investment and financial inclusion reinforce this effect. Therefore, the study recommends that governments in the sub-region commit to supporting green investment and environmentally friendly technological innovations. It is also crucial to strictly enforce laws regulating the operations of multinational corporations in the region.

The effect of transport services and ICTs on carbon dioxide emissions in South Africa.

The rising trend in carbon dioxide emissions has implications on economic livelihoods through global warming and climate change. Attaining lower carbon dioxide emissions is therefore crucial for the realization of the sustainable development goals. South Africa happens to be one of the leading countries in ICT and transport infrastructure in the sub-Saharan African region. Oppossing arguments on how ICT and tranport services affect carbon dioxide emissions exist. However, their effects on the rising trend in carbon emissions in the country has not received much empirical attention. The study analyses the role ICTs and the transportation sector play in the carbon dioxide emissions of South Africa. Regression analysis of data for the 1989-2018 period shows mobile adoption, internet usage, and telephone usage increases carbon dioxide emissions while transportation services in the country helps reduce carbon dioxide emissions. Income positively affects carbon dioxide emissions while urbanization has negative effects. Implications from the findings include the urgent need to have electricity that power ICT devices and equipment be generated from renewable and sustainable sources rather than from heavy polluting sources.

The effects of urbanization, ICT, fertilizer usage, and foreign direct investment on carbon dioxide emissions in Ghana.

Rising levels of carbon dioxide emissions in emerging countries has become a concern to all and there are calls for urgent action to curtail this. Ghana's government has in recent times sought to achieve higher economic growth at a lower carbon emission rate. With the current development of the country, this study analyzed the effect of urbanization, fertilizer usage, foreign direct investment (FDI), and ICT development on carbon dioxide emissions in Ghana. Time series data for 1971-2018 period was analyzed using autoregressive distributed lag regression approach within the environmental Kuznets curve (EKC) framework. From regression analysis, while the EKC hypothesis was not validated for aggregate carbon emissions, it was found that urbanization has a negative and significant impact on aggregate carbon emissions, whereas FDI and ICT infrastructure have positive impacts on the same in the both long run and short run. Fertilizer usage is seen to interact with urbanization to reduce carbon emissions at the aggregate and sectoral levels. It was found that although ICT helps reduce emissions at some sectoral levels, it was not enough to lower emissions at the aggregate level. Among other things, it is important for Ghana to take a critical assessment of its FDI sources and engagements to ensure that it does not become a sink for high toxic-emitting industries. Intensive education on efficient usage of fertilizer is also needed. It is important for policymakers to critically assess ways and means by which ICT development can be deployed to reduce overall carbon dioxide emissions in the country.

Unraveling the effect of gender dimensions and wood fuel usage on household food security: evidence from Ghana.

Food security discussions have heightened particularly with Sustainable Development Goal (SDG) 2 which focuses on hunger and malnutrition. This study investigates gender dimensions of food security and examines the role of wood fuel on households' food security in Ghana. Data from the most recent round of the Ghana Living Standards Survey (GLSS VII, 2016/2017) were used for this investigation. By employing the Exogeneous Switching Treatment Effect Regression to analyze food security, it was found that significant heterogeneities exist among different gender groups. The largest differences exist between male headed households and de jure female headed households. Further, this study finds that among female headed households, there remain substantial differences in food security. Wood fuel usage, household size and residing in the northern part of the country were found to reduce food security among households while education and income increase household food security. These findings are important for enhanced policy targeting to address food insecurity.

The effect of industrialization, militarization, and government expenditure on carbon dioxide emissions in Ghana.

The need to attain lower carbon dioxide emissions has become a topical issue in recent times. The effect of a number of economic variables on carbon dioxide emissions has been empirically assessed. Rising government expenditure, industrialization, and militarization have characterized many developing countries including Ghana. While it is undeniable that such situation has socio-economic importance to offer developing countries, their environmental effects have become a matter of debate among researchers. This study assesses the carbon dioxide emissions effect of industrialization, government expenditure, and militarization in Ghana. Based on the Stochastic Impacts by Regression on Population, Affluence, and Technology (STIRPAT) framework, the study models Ghana's carbon emission as a function of income, population, industrialization, government expenditure, and military expenditure. Time series data over the 1971-2018 period was used for investigation. The techniques employed to analyze the data were unit root test, cointegration test, and regression analysis. The autoregressive distributed lag (ARDL) regression approach reveals there is an inverted U-shaped relationship between income and carbon emission confirming the environmental Kuznets curve hypothesis. Also in the long run, carbon emissions are positively influenced by population, industrialization, and militarization but reduced by government expenditure. Similar outcome was obtained in the short run. The paper concludes that the level of income, industrialization, militarization, and population matters to deal with carbon dioxide emissions in Ghana. Policy implications of the findings include the urgent need for authorities to promote the use of eco-friendly production methods for military and industrial activities to sustain the economic growth without harming the environment.

The interrelationships among financial development, economic growth and environmental sustainability: evidence from Ghana.

A well established and developed financial system encourages savings and investment which stimulates economic growth. However, the link between financial development and the environment is ambiguous. In general, the role that the environment plays in the finance-growth nexus has received less attention, to the best of our knowledge. Against this backdrop, this study aims to examine the interrelationships among economic growth, financial development and carbon dioxide emissions for Ghana over the period of 1971-2018. To correct for a possible endogeneity problem, the three-stage least-square (3SLS) technique was employed. The results revealed that there is a bidirectional relationship between financial development and economic growth; and a unidirectional relationship from financial development to carbon dioxide emission. However, carbon dioxide emission has a neutral effect on economic growth and financial development. Economic growth exhibits an inverted U-shaped relationship with carbon dioxide emission, confirming the existence of the environmental Kuznets curve hypothesis in Ghana. Policymakers should consider the critical roles of financial development in achieving environmentally friendly growth in Ghana.

Households' source separation behaviour and solid waste disposal options in Ghana's Millennium City.

Poor solid waste management has increasingly taken a hegemonic position in urban policy discourse in Ghana. Often, the discourse centers on free market principles and inflexible waste management laws that promote privatization and deregulation. Recently however, source separation is dominating discussions on policy alternatives. This study investigates determinants of households' source separation behaviour and solid waste disposal options among residents of Ghana's 'Millennium City'- Accra using logit and multinomial logit regression models respectively. The logit regression estimates show that households' source separation behaviour is determined by gender, income, monetary incentives, attitude, compound house dummy, type of service provider and other household location variables. The multinomial logit estimates reveal that gender, age, age square, income, household size, employment, housing type, and attitude predicted household disposal options. We argue that to win the 'garbage war', source separation should be promoted by the Accra Metropolitan Assembly as this may enhance positive attitudes towards proper waste management.

The long-run effects of economic, demographic, and political indices on actual and potential CO2 emissions.

This study examines the long-run drivers of potential and actual CO2 emissions in Ghana, a sub-Saharan Africa country. The use of the former helps address the reverse causality problem and capture the true long-run effects. The Stock-Watson dynamic OLS is used with data from 1970 to 2014. The result shows that potential CO2 emissions improve model efficiency. Income (except in "other sector") and financial development (except in manufacturing and construction sector) have compelling positive and negative effects on actual and potential CO2 emissions, respectively. A higher price (oil and electricity) reduces actual and potential CO2 emissions, but electricity price is more vital in residential, buildings and commercial and public services sector, while oil price is crucial in the transport sector. Democracy lowers actual and potential CO2 emissions in the aggregate (insignificant) and transport sectors but raises it in the manufacturing and construction sector. The effect is, however, inconsistent for the remaining sectors. Urbanization raises aggregate actual and potential CO2 emissions, but the effect is inconsistent for the transport sector. The findings have important implications for policy formulation.