Sea wall planned to save sinking Jakarta

Indonesia is planning to build the world’s largest sea wall to try and prevent Jakarta from disappearing under rising sea levels.

The capital is slowly sinking at a rate of seven centimetres every year and experts say half the city will be below sea level by 2030.

However, environmentalists say the massive project to protect reclaimed land could wipe out coastal and fishing communities.

The extraction of water from below ground, mainly for use on big construction projects, is seen as the main reason for the city’s predicament.

Al Jazeera’s Step Vaessen reports from Jakarta.