IMG_0479

Most of San Francisco Bay's tidal marshes are hemmed in by urban development, making it hard for plants and animals to migrate upslope as seas rise. (Photo: Craig Miller)

Most of San Francisco Bay’s tidal marshes are hemmed in by urban development, making it hard for plants and animals to migrate upslope as seas rise. (Photo: Craig Miller)

Download Original: 640 × 480 Bay Area Wetlands Slowly Drowning as Seas Rise

IMG_0479 30 May,2013Craig Miller