Other aspects of climate change and land subsidence significantly exacerbate this effect though the relative importance of these factors varies from location.

UNESCO: MEDIA SERVICES

China's rising sea levels hit a record high in 2012 due to global warming and land subsidence, threatening millions of coastal residents, reports China Daily.

BBC: China media: Egypt accident anger

The average settling, or subsidence, was about the same as it was measured on land - about six millimeters a year.

NPR: Satellite Imagery Shows a Sinking New Orleans