Part 2/9:
Energy Consumption: A Historical Perspective
Focardi provided a broad overview of current energy sources, highlighting the global reliance on electricity derived from fossil fuels and nuclear processes. He pointed out that all major energy sources, barring hydroelectric power, involve transformations of matter through processes such as combustion or nuclear reactions. Each of these processes has its own associated risks and environmental consequences, such as carbon emissions contributing to global warming and radioactive waste from nuclear fission.