Until recently well-managed landfills have been established the most effective and secure way to store waste, helping to accelerate decomposition. But landfills immobilize potential resources (where a landfill could be a park, a sports center or an industrial area) and can cause serious environmental problems. Similarly, many materials that can be recycled and reused often end up in the landfill, constituting a waste of raw materials. Landfills need large open spaces, usually on the outskirts of cities, but not too far for not raising the costs of transporting the waste. They are famous ...