Climate scientists have assessed that all coal-fired power plants should be phased out by 2030 in the Organization for Economic Co-operation and Development (OECD) countries and by 2050 in the rest of the world.

The logical question is, if climate scientists don’t want us to use fossil fuels, which energy source should serve as the basis for electricity generation?

Although renewable energy is the go-to green energy solution, due to its unreliable nature—wind is not always blowing, the sun is not always shining, etc.—it likely cannot meet the requirements for the main electrical energy source. In this article, let’s discuss nuclear energy as a best possible alternative to fossil fuels, despite its bad reputation in the environmental and human aspects. We’ll also review the various nuclear energy technologies and examine the economics of nuclear sources.

In recent years, one of the world’s loudest discussions is how to moderate the impacts of human activities on the environment—the energy as the most dominant factor affecting the environment. Consequently, the term “greenness of energy supply” has received the most attention in the effort to reduce environmental impacts.

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While renewables, carbon capture and various political strategies are more commonly discussed as solutions to climate change, nuclear fission may be the most practical solution based on real engineering.