The ozone layer plays a crucial role to protect our earth from the dangerous ultraviolet rays. Now, a new study has observed that small levels of iodine in the earth’s stratosphere is slowing down the healing process of the ozone layer. However, researchers discovered the small traces of iodine in the lower stratosphere are very tiny, but this small amount of iodine is enough to destroy the ozone layer. The study also unveiled that China accounted for 40% to 60% of the global increase in CFC-11 emissions between 2014 and 2017 and the majority of these hazardous emissions released from the northern regions of China.