Best Spots for a 'Green' Vacation

Last week, I offered a doomsday road trip of sorts, suggesting some naturally beautiful places around the world to visit before global warming and human folly change them beyond recognition.

To show that I'm not a total curmudgeon -- and to combat any notion that I'm not a fun travel companion -- I'm focusing this week on the umbrella-cocktail glass that's half-full.

Here are five ways to travel this summer to appreciate people and places that are finding a sustainable balance of commerce, tourism and environmental friendliness. ...