American scientists have stated that researchers should use green chemistry for reducing future risks from nanotechnology. Worldwide there seems to be a growing need regarding nanotechnology and various environmental and health impacts it can cause. This might affect the commercialization of nanotechnology industry. The time has come when the scientists should give a serious thought to the designing of processes, materials and applications which will lessen the wastes and hazards and this is really important as discoveries in nanoscience changes take place in nanotechnology products. Now the time has come when researchers need to give a serious thought to this issue and make efforts towards discovering the various cons associated with nanotechnology and try to rectify it. Since it is a new technology it would be easier to control it at this point of time before it gets negative publicity on some frivolous issue.