Created and undone by climate change?
"A thousands years ago, all of Bangkok was flood land," Sanitwong explains, pointing out that the 230-year-old city itself only exists because of historic climate change.
"Somehow over a certain period, we had more than average strong winds and waves. Those strong winds and waves from the sea moved the sand and soil and accumulated in this area and it became Bangkok."
The city is therefore particularly sensitive to any alterations in the climate and seriously at risk should anything change again.
"We believe we are in the phase where we have less strong winds and storms in this particular area. So thus no more mechanism to bring in the sediments and the clay from the sea, the ocean," Sanitwong warns.
And that means Bangkok is also threatened by the rising sea level.