English as the predominant global language in many ways is ****A global loss****  
"Because we happen to be English-speaking and since English is used more and more as the language of international business and finance and as a vehicular language between countries and continents, we often allow ourselves to be lured into the false comfort that by speaking English we can “get by” in an international context. This belief may often prove true, if only on a superficial level. For language is not just a vehicle of communication, it also expresses a culture and a way of life. For every language that English replaces, a culture, a way of thinking, and a way of life dies too, and this new homogenised world becomes a poorer place.  
This trend of Anglicisation has been widely commented on, it is its future projection that will produce remarkable consequences. Many languages may not die out in the next generation, but merely become redundant curiosities. They will become like Irish – codified, respected and sadly largely useless, or worse still like Manx, the last speaker of which died a generation ago on the Isle of Man. As people with these languages seek to bustle in the wider world, their native tongues will cease to be used. Everywhere from businesses to universities to diplomatic corps, the learning of foreign “local” languages will be on the  
wane.This is not merely a long-term trend: the cumulative effect will be quickly felt."  
****BTW MANX is not a dead language.There are Manx radio stations etc and the Irish language is often a necessity where i am. I agree with the jist of this article but these are a couple innaccuracies. Irish is, indeed often codified so if you dont like the way i type/speak then now you know of codification and bucking the trend. i was raised to buck anglicisation.  
Also the large Spanish speaking population will put potential U.S. presidents at a disadvantage.  
pookapooka: I just got back from Tokyo -- urbane, sophisticated Tokyo -- and I was forced to speak my rusty Japanese on almost any occasion beyond the "excuse me" and "thank you" ones.  
Languages provide two tools to their users -- communication and exclusion -- and IMO it is the second one which will always keep the diversity of language alive. As for English, compare Hawaiian common-use English with Yorkshire common-use English. They are practically mutually unintelligible.
Mac: In my years of business experience, I've found that the Japanese are second to none in using language as a tool of exclusion.
ian: I dinnae ken wot yer spakin'.That's my Scots language. Means I don't know what you're saying.  
Actually I do know and I agree.
OurLiam: The Irish language is on the upswing again. It will never die. In my opinion there are two Irish languages. The one that screws around with English enough to make it our own lingo and outsiders may not understand and Gaelic.  
Gaelic is an ancient language that will never die.  
I hear some people in the states are taking Gaelic language lessons now also.
pookapooka: or in Hawaiian street english:  
Wot da bugga wen say, how you figga?