The document discusses Maine's solid waste hierarchy which prioritizes reducing, reusing, recycling, composting, processing waste for beneficial uses, waste-to-energy, and landfilling as a last resort. It provides details on strategies for reducing, reusing, recycling, and composting materials to prevent waste from piling up. The document also explains waste-to-energy facilities that combust solid waste to generate electricity and how modern landfills are constructed and operated to strict environmental standards.