Dhaka, Feb. 21 -- Clean energy refers to energy sources and technologies that produce minimal or no harmful emissions and have a lower environmental impact compared to traditional fossil fuels. These energy sources are renewable, abundant, and sustainable, offering significant benefits for mitigating climate change, reducing air pollution, and promoting environmental sustainability.

Renewable energy sources are derived from natural processes that are continuously replenished, such as sunlight, wind, water (hydropower), biomass, and geothermal heat. These sources are considered clean because they produce little to no greenhouse gas emissions or air pollutants during electricity generation.

Solar energy is harnessed from sunlight using ph...