I had wondered, with the relative flatness of the Yucatan and the low elevation of the beach communities, how things looked for the future as climate change is expected to cause rising sea levels.
Here's a link to an initiative that promises to provide more information on this issue, over time:
http://www.smh.com.au/environment/conservation/cousteau-inspires-mexicos-first-marine-observatory-20090624-cw49.html Cousteau inspires Mexico's first marine observatory
June 24, 2009
"Mexico and France launched Mexico's first marine observatory on Tuesday on the edge of one of the world's most diverse ocean ecosystems, the Sea of Cortez.
"The Jacques Cousteau observatory will unite scientific research on the environmental impact from humans and climate change on Mexico's coastlines, and aims to improve public policy to protect them, French and Mexican officials said.
"Its first base is housed by the Centre of Scientific Research of the Northwest (CIBNOR) in La Paz, on Mexico's north-west Baja California peninsula.
"A second is due to open later this year in Merida, in the south-east Yucatan..."