4Rs is nothing but the cycle of Rethink, Reduce, Reuse and Recycle. If we follow 4Rs we can also prevent Global Warming. Rethink tells us we should think before buying anything, that it is useful or not. Reduce tells that we should reduce our usage, that is reduce the usage of Electricity, fossil fuels etc.  Reuse tells that we should use the things again and again, for example instead of using use and throw material we should use refill material. Instead of buying water bottles again and again we use stainless steel water bottles. I stressed this point in the meeting of Lions Club of Mayiladuthurai. They arranged the meeting in order to honor me for getting International Young Eco Hero Award from Action for nature, California. On that day Lions Club of Mayiladuthurai has given me a Best Service Award and a Certificate.