The World's Cleanest Air

Clean-Air Credentials: Because of the sultry tropical climate and southern locale, the air that reaches the northern tip of Tutuila Island in American Samoa is as pristine as can be. Even the observatory there is eco-friendly, with 30 percent of its power generated by solar panels.

Take a Breather: Catch the wind before the scientists by taking a Wave Jumper beyond the lagoon and into the surf zone at Fagamalo break—as yet the meteorological instrumentation cannot measure fear.

From the article The World’s Cleanest Air