Abstract
Since the 1970s, scientific research concerning the environment has been increasing. The vital concern is global warming. According to research, global warming is currently becoming worse and it affects a lot the hole in the ozone layer, making it bigger. The proof is the increase in the number of natural disasters such as hurricanes, tsunamis and also the rapidity of the melting ice and the wiping out of animal species. The question is why so many measures have been taken to protect the environment in the last four years?
