Intergovernmental Panel on Climate Change state that “increases in sea level are consistent with warming. Global average sea level rose at an average rate of 1.8 mm per year over 1961 to 2003 and at an average rate of about 3.1 mm per year from 1993 to 2003.” The consequences of sea level rise are abundant: many millions of people will be subjected to floods, coastal ecosystems will be destroyed, and sea level rise will exacerbate freshwater constraints due to salinization of estuaries and groundwater supplies. Southeast Asia is not exempt from these dangers. The IPCC warns that “the megadeltas of Asia are vulnerable to climate change and sea level rise that could increase the frequency and level of inundation…due to storm surges and floods from river drainage putting communities, biodiversity and infrastructure at risk of being damaged. This impact could be more pronounced in megacities located in megadeltas where natural ground subsidence is enhanced by human activities, such as in Bangkok.