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This study examines an environmental management strategy to effectively cap greenhouse gas (GHG) emissions in an electricity market. To do so, we model a stochastic impulse two-person, nonzero-sum game between a power plant, a representative of electricity production within a country whose primary aim is to maximize profits, and government who is motivated to minimize the social and environmental cost of pollution. We assume that the power plant’s competitive price is equal to the marginal cost whilst the government’s running cost is linear. When the uncontrolled output of GHG emissions evolves as a Geometric Brownian motion, we provide a more dynamic and robust depiction of the interplay between government and the energy sector. We provide solutions to the impulse control problem derived via the quasi-variational inequalities (QVIs). We then present a sufficiency criterion for the existence of a Nash equilibrium for the optimal policy. Ultimately, our use of short-run price competition characterized by strategic supplies for renewable and fossil resources and inclusion of endogenous constraints on production capacity provides a more robust model and an effective framework for the development of policy that allows governments to meet emissions targets whilst guaranteeing energy supply.

The agricultural and allied sectors of many countries have experienced the impacts of climate change in one way or the other. This study highlights the impacts of climate change on agriculture, water resources, health, and economy of sub-Sahara African countries. The study reveals its significant threats to gross domestic product (GDP) and economic sustainability at the national level, and livelihoods, food security, and well-being of citizens at individual level. The study explored research reports on adaptation, mitigation, and integrated approaches to solving climate change issues. Meta AI was found useful in generating data for the study. Though climate change is a global issue, impacts on the countries of the global north are quite different from those of the global south, with impacts being more severe in sub-Sahara Africa. GDP, GDP/capital, contribution of agriculture to GDP, and water availability will decline while numbers of people living below poverty line, people displaced and occasions of deceases will increase due to climate change. Policy and practice interventions with consideration for local factors are recommended to enhance adaptation capacity, promote sustainable development, and support climate change mitigation and adaptation efforts. This study provides policy insight to the growing discussions on climate change issues globally, especially as it focuses on how its impacts alter the economic situations and daily expectations of the already indigent farmers in the countries of the global south. These countries contribute very little to causation of climate change, yet are at the receiving end of the impacts with extremely high Climate Change Vulnerability Index values recorded.