Climate Change Paradox: The Least Responsible for It Encounters the Most of Its Implications.

Carbon dioxide (CO₂) emissions are a major cause of climate change. However, CO₂ emissions data for 178 countries from 1960 to 2018 revealed inequality in global CO₂ emissions. For example, we found that 50% of the world's population (ca. 3.75 billion people) was responsible for just 8.9% of the global cumulative carbon emissions. These people are concentrated in low- and middle-income countries. Conversely, 10% of the world's population (ca. 757 million people), concentrated in high-income countries, were responsible for 46.8% of the global emissions. Furthermore, the literature review disclosed evolution of CO₂ emission inequalities within countries. A significant (p < 0.001) negative (r² = −0.52) correlation was detected between carbon emissions and climate change impacts on national incomes. Such correlation indicated that countries most likely to experience the greatest effects of climate change are also those who make the smallest contributions to its underlying causes. Similar disparities were observed within countries where low-income groups who make the smallest contributions to climate change are subjected to its worst implications. Evaluations of the data from the literature showed that migration could be the result of climate change, though such migration does not happen in isolation. In other words, this kind of migration is frequently linked to other issues such as the fragility and lack of adaptability of the communities. Furthermore, reviews showed that climate change catalyzes instability and conflict. On the other hand, conflict damages the environment and climate in multiple ways. Therefore, it is necessary to collaborate to resolve these two issues concurrently. [ABSTRACT FROM AUTHOR]