Renewable energy refers to energy generated from natural resources that are constantly replenished, such as sunlight, wind, rain, tides, and geothermal heat. Unlike fossil fuels, renewable energy sources are sustainable and environmentally friendly, producing little to no greenhouse gas emissions. Common forms include solar power, wind energy, hydroelectric power, biomass, and geothermal energy. Embracing renewable energy helps reduce dependence on non-renewable resources, combats climate change, and supports a cleaner, greener future.