Guys remember to Reduce, Reuse, Recycle and refuse, these are the four sustainability. The four sustainability is important because the 4Rs (Reduce, Reuse, Recycle and Refuse) are organized in a hierarchy or order of importance. The first goal is to reduce the amount of waste we generate. ... Recycling conserves natural resources, reduces air and water pollution and saves energy. Guys please we can't live like dis. PLS!!! RECYCLE!!!!!!