Even though source reduction, recycling, composting, and WTE are preferred choices of waste management, over 70% of solid waste is open dumped or landfilled globally. Typical landfills/dumpsites occupy large areas from several to hundreds of acres.
A lack of available space, both in developed countries and major metropolitan cities in developing countries, for new dumpsite/landfills/waste management facilities every 20/30 years is causing a major challenge for future waste management.