b'SURFACE WATERSHALLOWWATER BEDS CAPTURE CO2Written by Steve Werblow Layout by Ally GrahamPhoto: Michael SundmanCalifornia Sea Grant Extension ecologist Joe Tyburczy (right) andundergraduate research assistant Kiana Encinas (left) ready a SonTek Argonaut-ADVto measure water velocity when the tide returns to an eelgrass bed in Humboldt Bay. 38 MISSION: WATER'