Renewable energy sources are natural resources that can be replenished over time, making them a sustainable and eco-friendly alternative to fossil fuels. These sources include sunlight (solar energy), wind, rain, tides, waves, geothermal heat, and biomass. They produce little to no greenhouse gas emissions, mitigating climate change impacts. Harnessing these energies involves technologies like solar panels, wind turbines, hydroelectric dams, and geothermal power plants. Transitioning to renewables is crucial for reducing reliance on finite fossil fuels and achieving a more sustainable, clean energy future.