Coastal erosion has been aggravated by climate change and has already destroyed more than 500 houses in the town of Atafona in southeastern Brazil. Movements led largely by women are working to combat the advance of the sea and generate economic alternatives.
A ban on harvesting shellfish in Chiloé due to a severe red tide outbreak sparked a social uprising that has partially isolated thousands of local residents of the southern Chilean archipelago and revived criticism of an export model that condemns small-scale fishing communities to poverty and marginalisation.
Geeta Selvaraj and a few other women take turns to prepare meals with just one large gas cooker in a tiny shop.
It took just 30 minutes for the killer waves to leave 350,000 dead and half a million displaced. Less than one hour for 100,000 houses to be destroyed and 200,000 people to be stripped of their livelihoods.