But he has yet to actively intervene to make sure New Orleans gets state-of-the-art flood protection and robust and timely coastal wetland reconstruction.

CNN: Commentary: Does Obama care about New Orleans?

Wetland loss in coastal Louisiana is not like in other areas of the country.

CNN: Your e-mails: 'Clean up our wetlands'

The wetland, which includes the coastal Unryul Migratory Birds Reserve, play an important conservation role as habitats for shore birds and critical areas for many migratory bird species of north-east Asia such as black-faced spoonbill (Platalea minor), Chinese egret (Egretta eulophotes) and red-crowned crane (Grus japonensis).

UNESCO: Natural Sciences