Should we have a global language, then how?

Globalization doesn't mean just being borderless. It also means creating a world environment where people around the globe share some common culture. It's already shaping up , however, amongst conflicts within and across the borders, various interests involved therein. To resolve them in meaningful ways, to gear human endeavors toward better schemes, communication's needed and so inevitable. But in what language should we talk? GLS Lab presents an essay on this matter, here wishing it might be...