Multiple disasters can have a cumulative impact leading to great human and financial loss. The awareness of all possible risks is of fundamental importance.

Tyres are well suited for recycling. They are easy to collect and do not require any costly sorting process.  However, in Europe, still only about 50% of the tyres are recycled .

Non-ferrous metals are increasingly in demand because of the electronics industry. "They are used in LED’s, computers, smartphones; this is a much bigger business now," says Kate Hornsby , Waste in Social Environment manager at the Technical University Aachen , Germany.