If much teaching and learning occurred in virtual worlds, and on the web, at all levels, the carbon footprint of students traveling to and from schools, colleges, and universities, etc., would be much, much smaller than it is now (commerce, too), and the conversation and representational teaching and learning content (books, programs, etc.) is much richer, as well as in terms of choice.
How to change the culture of learning, where learning becomes really fun, and students become very focused?
Culturally, other countries have different ethos' of learning ...
What kind of learning and teaching culture does the U.S., for example, want?
Here's an opportunity to teach about this - http://worlduniversity.wikia.com/wiki/World_University
(http://scott-macleod.blogspot.com/2010/11/iguana-eye-if-much-teaching-and.html - November 20, 2010)