Recycling is a process by which waste materials are converted into new products. It involves collecting and processing used items, such as paper, plastic, glass, or metal, to create something new that can be reused again. The goal of recycling is to reduce the amount of waste sent to landfills and conserve natural resources by using existing materials instead of extracting new ones. Recycling also helps to reduce pollution and greenhouse gas emissions, as it takes less energy to produce products from recycled materials than from raw materials.