A volunteer helps in Hawaii.

Hui o Ko'olaupoko works with landowners in Windward Oahu to improve and conserve threatened land and to restore the watershed.

Some may see the efforts of Hui o Ko'olaupoko as just a drop in the bucket, but the bucket is the Pacific Ocean and arguably every drop is important to the health of the whole planet.

HOK works with landowners in Windward Oahu to improve and conserve threatened land and to restore the watershed. So far this year, 1,150 volunteers have logged 2,947 volunteer hours.

One of the group's biggest challenges, says Executive Director Todd Cullison, is "showing measurable changes in water quality. We have been degrading our watersheds for many generations. It's not an overnight reversal of past practices."

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