Mangroves do a coast good

Intact swaths of trees reduce tsunami damage, a new study suggests

By Sid Perkins, 15:39 PM July 9, 2010

Field studies of an Indonesian coastline ravaged by a tsunami in December 2004 suggest that leaving mangrove forests intact along a shoreline could substantially reduce damage from moderate-sized tsunamis.

When a magnitude 9.1 earthquake struck west of Sumatra on December 26, 2004, it spawned a tsunami that hammered nations fringing the Indian Ocean (SN: 1/8/05, p. 19). Near Banda Aceh, Indonesia, on the northwestern tip of Sumatra, the tsunami swept inland more than 4 kilometers and killed...

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