Renewable energy sources are those that can be naturally replenished, such as solar, wind, hydropower, and biomass. These energy sources are sustainable and produce minimal environmental impact. In contrast, non-renewable energy sources, like coal, oil, and natural gas, are finite and can contribute to increased greenhouse gas emissions, leading to climate change. The shift towards renewable energy is essential for achieving a sustainable energy future and mitigating the adverse effects associated with fossil fuel consumption on our environment and climate stability.