Water Plays Surprising Role in Climate Change

By Adriana Bailey, University of Colorado
posted: 30 January 2009 09:26 am ET

This Behind the Scenes article was provided to LiveScience in partnership with the National Science Foundation.

With its sea turtles and surf shops, the Big Island of Hawaii resembles a tropical, watery world. Yet for climate scientists, it's the ideal place to study low-humidity air and the processes that dehydrate the atmosphere.

From the sprawling dome of Mauna Loa — 11,000 feet above Hawaii's coconut-fringed beaches — climate scientists David Noone and Joe Galewsky can track water vapor that's traveled as far as the equator and the pole. They're the first to try to measure vapor's chemical signature in real-time in order to understand the processes controlling the global water cycle.