Surprisingly no one mentioned about 3 R(Reduce, Reuse and recycle) which is quite popular in India (don't know about other countries). https://www3.epa.gov/c

Surprisingly no one mentioned about 3 R(Reduce, Reuse and recycle) which is quite popular in India (don't know about other countries). https://www3.epa.gov/climatechange//kids/solutions/actions/waste.html https://www3.epa.gov/climatechange//kids/solutions/actions/w...