结果发现，具有氯的化学属性，例如溴起到一定的作用。 臭氧空洞是一个全球性的问题，而且情况一年比一年恶化，这也不是南极洲春天事件。
If it had turned out that chlorine behaved chemically like bromine, the ozone hole would by then have been a global, year-round phenomenon, not just an event of the Antarctic spring.