The development of coal as a source of energy is relatively on the decline because of?

The development of coal as a source of energy is relatively on the decline mainly due to the increasing availability and affordability of alternative sources of energy such as natural gas, wind, solar, and hydropower. Coal is also considered one of the dirtiest and most polluting sources of energy, contributing to air pollution and greenhouse gas emissions, which have harmful effects on the environment and human health. Therefore, many countries are transitioning towards cleaner and more sustainable sources of energy to mitigate the impacts of climate change and promote sustainable development. While the other factors such as the bulkiness and non-availability of coal may play a role in certain regions, they are not the primary reasons for the decline in the use of coal as a source of energy globally.