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Carbon dioxide emissions are considered to be one of the main culprits in global warming and the Kyoto Protocol specifically targets reductions in carbon dioxide to reduce global warming. Because the fossil burning electric utility plants are the primary industrial source of carbon dioxide emissions, we examine how effective the U.S. electric utility companies have been in reducing carbon dioxide emissions. We evaluate 1998 carbon dioxide emissions in relation to the emissions of the base year of 1990 set by the Kyoto Protocol. We also examine whether adequate disclosures are being made by the utilities to reflect their pollution performance. The findings show that the total amount of carbon dioxide emissions increased by 35% in 1998 compared to 1990, but on a relative basis, they decreased from 205 to 204lbs/MMBTU. Though we detect some support for a positive association between pollution disclosures and pollution emissions, the electric utilities in general do not disclose much about global warming or carbon dioxide.

The desire for a sustainable environment has led to the need to reduce carbon dioxide emissions and increase renewable energy usage. Empirical evidence generally shows that financial development has a significant effect on these two variables. However, little is known about how the financial strength of financial institutions influences them in the fight against climate change. This study aims to assess the effect of the financial strength of listed financial institutions on renewable energy consumption and carbon dioxide emissions in Ghana.

Regression analyses were used to estimate the effect of asset quality, credit management, return on equity/asset and firm size on renewable energy consumption and carbon dioxide emissions for data covering from 2009 to 2018.

The results revealed that return on equity reduces renewable energy consumption and increases carbon dioxide emissions. It is also found that credit risk management and asset quality positively influence renewable energy consumption but reduce carbon dioxide emissions in Ghana.

Policymakers need to identify profitable but less polluting ventures and draw the attention of financial institutions in the country. This may cause banks and other lending-giving institutions to desist from giving credits to support environmentally harmful ventures.

The paper assessed the effect that the financial strength of financial institutions has on renewable energy consumption and carbon dioxide emissions.

The rise in public debt and the increased extraction of natural resources in Ghana at a time that environmental degradation is escalating, especially with carbon dioxide emission, is worrying. This seems to cast doubt on the country's ability to meet the goals of the Paris agreement for climate change and ensuring sustainable development. Consequently, in this study, the effect of natural resources extraction and government debt on carbon dioxide emission is investigated.

The Environmental Kuznets Curve (EKC) hypothesis was adopted for this study. The Fully Modified Ordinary Least Square Model was used for assessing the data. An annual data from 1971 to 2018 was used for the analysis.

The long-run results based on the Fully Modified Ordinary Least Square analysis reveal that natural resources extraction increases carbon dioxide emissions. Moreover, the joint effect of post-oil production in commercial quantities and natural resources rent increases carbon dioxide emission. Further, the findings document that the initial stage of government debt improves environmental quality up to a point, beyond which an increase in debt hurts the environment. On the environmental degrading effect of economic growth, the findings validate the Environmental Kuznets Curve hypothesis. It is also observed that urbanization degrades environmental quality.

The study offers appropriate recommendations policymakers need to embrace towards the attainment of lower carbon emissions from the loans and natural resources rent to achieve environmental sustainability.

The effect of debt on carbon dioxide emission is assessed for the Ghanaian economy. It also contributes to studies on the natural resources-carbon emission nexus.

Society has to find ways and means to reduce the emission of greenhouse gases, mainly carbon dioxide, to prevent global warming when considering inter‐generational equity with respect to environmental quality. The aim of the carbon dioxide emission control is to keep the level of carbon dioxide below a certain threshold level. This paper deals with the various policy instruments that are available to control greenhouse gases such as carbon dioxide. The criteria that should be used in selecting the appropriate policy instruments in controlling carbon dioxide emissions are: efficiency, equity and flexibility. Based on these criteria, the author is of the view that in the short‐run it is important for all the countries to ratify the Kyoto Protocol. However, in the long‐run, it may be possible to use the Kyoto targets to achieve an international carbon dioxide emission tradable permit system.

This paper introduces a macro traffic flow model of carbon dioxide emissions from container ports. As long as both the throughput and the transshipment rate of the port are available, any port in the world can use it to estimate emissions. Initially, two Japanese container ports are used as reference points to derive the equivalent units of carbon dioxide per TEU for application to other ports. Then macro traffic flows within a container port are defined. Finally, carbon dioxide emissions from different container ports are estimated using the macro estimation procedure introduced in this paper. The results of trial estimations for selected ports among different countries highlight that the impacts of container ports on global warming are serious. This issue will be intensified if competition is increased by the larger container ports aspiring to be international mega hubs.

This study investigates the relationship between urbanization and carbon dioxide emission in the Central African Economic and Monetary Community from 1990 to 2019. The literature reveals that the relationship between urbanization and carbon dioxide emissions is still debatable and the existing findings are inconclusive.

Carbon dioxide is the regressand; while, urbanization, gross domestic product (GDP) and financial development (FD), rule of law (ROL) and government effectiveness (GEF) are the regressors. Johansen Fisher and Kao residual co-integration tests alongside the fully modified and dynamic ordinary least squares.

The results show a significant positive relationship between urbanization and carbon dioxide emissions. The causality tests results show that carbon dioxide granger causes urbanization, GDP and FD unit directionally.

The countries' governments should effectively improve their legal systems to regulate carbon dioxide emissions. Urbanization laws should be implemented to limit urbanization environmental deteriorating effects on carbon dioxide emissions. This occurs as the countries practiced unregulated urbanization which increases population's environmental impacts. The study recommends sustainable green urbanization policies for environmental conservation through tree planting and horticulture. Balance development in urban and rural areas is vital to decongest the urban cities' pressure in the states. The governments should motivate the private sector with rural investments captivating policies to limit rural urban migration.

The findings contribute value by supporting a positive link between urbanization and carbon dioxide emissions in the CEMAC zone. The causality tests findings confirm the view that carbon dioxide granger causes urbanization, GDP and FD unit directionally. This value addition is essential to the governments and policy makers to mitigate urbanization and carbon dioxide emissions in the CEMAC region.

The purpose of this paper is to examine the impact of a range of different travel and tourism options, and quantifies the carbon‐dioxide emissions resulting from international vacations, breaking down emissions categories into those resulting from transport, accommodation and recreation.

The paper uses summary data to review a range of possible vacation scenarios and examines their relative carbon‐dioxide emissions in order to compare the relative climatic impact of different forms of tourism and vacation options.

The paper concludes that intercontinental flights and cruise ship travel are particularly carbon‐intensive, which suggests that these two forms of tourism will be particularly vulnerable to any policy initiative to curb or price carbon emissions. Ends by considering whether climatically responsible international tourism is possible, and outlines some low‐carbon options.

The paper relates data on carbon emissions to the implications for tourism arising from climate change.