But this is only part of the story that we celebrate on the International Day for the Preservation of the Ozone Layer (September 16). Over the past two years, it has been established that the Montreal Protocol has also spared humanity a significant level of climate change, because the gases that it prohibits also contribute to global warming.
但这只是我们庆祝世界臭氧层保护日（9月16日）其中一部分原因。在过去两年来，据估计《蒙特利尔议定书》同样为人类免除了气候变化导致的大量灾害，因为议定书所禁止的气体同样也是全球变暖的始作俑者。