The recent chaos in the global air travel, caused by an Icelandic volcanic eruption, probably established this point that there must be a guideline and/or plan of action to counter such incidents that may occur in the future.
Needless to say that this guideline or plan of action will be global in nature, with the airlines of every country being ready to adhere to it. And it is to be monitored by a global aviation body. And when we think of such a global aviation body, we have only one choice – International Civil Aviation Organization (ICAO), the UN body concerned with the global aviation issues.
I feel ICAO should take this incident as a research study, and formulate one such plan of action that can be effectively used in case any such incident occurs in the future, disrupting the global aviation. Yes, that plan of action will not be able to rectify the situation. But it can at least alleviate the impact of the situation, thereby alleviating the harassments of the concerned air travelers.