Heard of Medicine Sans Frontier? They are the Doctors without Borders. Similarly they have the Reporters Without Borders. Apart from these well known ones, there are other similar "without borders" groups that are working for one cause or another.
The A-Z Guide of World's "Without Borders" Groups discusses the many other groups that individuals have formed for one cause or another.
Some of the few interesting ones were:
Mothers Without Borders - this came about as they were trying to reduce the number of children who were being orphaned.
And many more at The A-Z Guide of World's "Without Borders" Groups.
Check 'Em Out. Chances are you might end up signing up for any one of them. :-)
There are no such thing as limits to growth, because there are no limits to the human capacity for intelligence, imagination, and wonder. - Ronald Reagan