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coastal erosion: The Latest Architecture and News

How Madagascar Is Confronting Climate Change

This article was originally published on Common Edge.

Madagascar is an island nation off the southeast coast of Africa that, despite its lush vegetation and unique flora and fauna, grapples with formidable environmental challenges, from rising sea levels to the excessive exploitation of natural resources. Joan Razafimaharo is an architect deeply involved in sustainability, climate change, and adaptation efforts in Madagascar and the broader Indian Ocean region. Razafimaharo is also one of only about sixty architects in the country, serving a population of 28 million.

Recently I spoke to her about environmental activism in the face of climate change, curbing the exploitation of natural resources, the role of architects in resource-scarce societies, and empowering women in isolated areas. The interview, originally conducted in French, has been translated and edited for length and clarity.

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The Right to the Beach: Walling off Coastal Erosion

At the onset of the coronavirus pandemic in March 2020, affluent Parisians flocked to second homes on France’s Atlantic coast as a nationwide lockdown came down on the country. In June 2020, as the lockdown was eased in England, residents headed to seaside towns like Bournemouth to soak in sunny weather. The former scenario reflects the widening gap between France’s wealthy and the poor, whilst the latter is a reflection of the democratizing power of public-access beaches.

In both situations, what is sought out is the ecological calmness usually found on beaches. Globally, however, there’s an unsettling phenomenon, where intertwined with climate change and policy decisions, beaches are increasingly becoming private, inaccessible spaces.

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CEMEX + Aptum Architecture's Floating Concrete Structures Act as Mangroves for Shorelines

Mangroves are vital for stabilizing shorelines, but their recent depletion presents impending doom for coastal habitats. 

Aptum Architecture and CEMEX Research Group might have a solution. Their collaborative project, Rhizolith Island (Isla Rhizolith), is a prototype that explores the potential for floating concrete structures to revitalize deteriorating shorelines. The structure was just installed in Cartagena, Columbia as part of the RC 2016 (Reunion del Concreto), an international Expo and Academic Conference on Concrete.

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