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The world’s most beautiful homes are also down to earth

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The new book The Art of Earth Architecture explores one of the oldest—and most ecologically sensitive—building techniques

A modern home with a corrugated metal butterfly roof and earthen walls set in the desert.
Studio Rick Joy’s Tucson Mountain House was constructed from rammed earth an is a mix of modern minimalism and vernacular construction.?
? Bill?Timmerman / Studio Rick Joy from?The Art of Earth Architecture,?published by Princeton Architectural Press

The Tucson Mountain House, in Arizona, is tucked into a secluded desert hillside. The minimalist home has a butterfly roof and large floor-to-ceiling windows, yet it blends in with the terra cotta–colored landscape surrounding it. If you pass by and don’t look closely, you might not even see it. Why? Its architect, Rick Joy, constructed it partly out of earth, a building technique that dates back 8,000 years.

A book cover with an image of domed earthen structures and the title printed on it.
The Art of Earth Architecture: Past, Present, Future features over 250 projects around the world made from earth.
Courtesy Princeton Architectural Press

This house is one of 250 buildings in The Art of Earth Architecture: Past, Present, Future, a new book by Jean Dethier and Princeton Architectural Press. Dethier, a curator and historian, has dedicated his 50-plus-year career to exploring architecture made from earthen materials. This book is both an informative global survey of buildings made from the technique—from ancient Egypt to today—and a call to action: Conventional construction is killing the planet, and we need to introduce more ecologically minded techniques into the fold.

“As we face the dangerous and deep crisis related to climate change, we absolutely and urgently need feasible alternatives,” Dethier tells Curbed in an email interview.

A one-story house with arched windows and a tall column. There are dry trees and a lake in front of the house.
Designed by the firm Atelier Koe, this rammed earth house located 30 miles outside of Dakar, Senegal, was intended to be a reprieve from city life.
? By Reg??- Régis L?Hostis?from?The Art of Earth Architecture,?published by Princeton Architectural Press.

Buildings account for a significant proportion of carbon emissions in two ways: The energy they consume to operate (heating, cooling, and lighting) and the energy required to construct them, known as embodied carbon. According to Architecture 2030, a nonprofit organization that is working to reduce carbon emissions, embodied carbon from the building industry accounts for 11 percent of global greenhouse gas emissions. Concrete, iron, and steel are carbon-intensive materials to produce. The production of cement—which goes into concrete—accounts for eight percent of global carbon emissions. Global steel production accounts for seven to nine percent of carbon emissions.

A long, white building with minarets in front of sand-colored, densely packed, multi-story homes.
Shibham, in Yemen, is nicknamed the “Manhattan of the Desert.” A UNESCO World Heritage site, the city features tall towers dating from the 16th century, which are made from stone foundations and mud brick walls.
Aga Khan Trust for Culture/photo by Anne de Henning

Reducing the building industry’s reliance on carbon-intensive construction materials is an important step for fighting climate change. Increasingly, the construction industry is looking to natural materials—like mass timber, whose full supply chain might not be as sustainable as proponents argue—as a solution. Experts say rammed earth—which is a focus of Dethier’s book, along with other earthen techniques, like adobe, mud bricks, and cob—is one of the better options because of its structural stability and small carbon footprint.

Today’s architects are looking at indigenous and vernacular design as greener alternatives to conventional construction and The Art of Earth Architecture shows how it can be applied to modern buildings.

“The traditions have been largely ignored because they were victims of a huge cultural amnesia,” Dethier says. “It was high time to honor them. Of course, the idea is not at all to ‘copy’ the past...It is to clearly understand the many lessons we can learn from it with the aim to modernize and adapt this technical and cultural sophisticated knowhow to present-day needs.”

A zig-zagging wall made of red earth that’s built into a hillside.
Constructed in the Pilbara region of Western Australia, this 12-unit housing project was created for shepherds. It’s composed of a 250-yard-long rammed earth wall, the longest in the country. The roof is covered in soil for insulation from the heat and cold.
? Luigi Rosselli Architects?from?The Art of Earth Architecture,?published by Princeton Architectural Press.

Traditional rammed earth is made from clay-rich soil, water, and natural stabilizers like animal blood or urine and plant fibers that have been packed down. This technique has been used in the Great Wall of China, in Japanese temples, and the Alhambra palace and fortress. Today, it’s used around the world in luxury homes, like the Tucson house by Rick Joy, offices, shopping centers, places of worship, and more, which are featured in Dethier’s book.

“The optimal new uses of raw earth as a construction material are now increasingly adopted all over the world for three main reasons: It does not need any industrialization process, does not consume fossil energy, and does not emit CO2,” Dethier says. “Housing and buildings appropriately designed to use the local resource of raw earth are providing high climatic comfort, as well as a very pleasant living experience...generating sobriety, economy, beauty, sensuality, harmony with nature and eco-responsibility.”

A red-earth colored building with blue doors is on the foreground and a red-earth building with a tall column is in the background. A courtyard with walking paths and three young trees are between them.
The Yaama mosque, in Niger, was built in 1962 using mud brick. Designed by the master mason Falké Barmou, the mosque was deconsecrated and fell into disrepair. Recently, it was transformed into a public library.
James Wang

If the environmental creds of earthen buildings aren’t convincing enough, they’re also incredibly beautiful. Dethier’s book has “art” in the title, after all, and he hopes that it can help “seduce” general readers into becoming advocates for this building technique.

“To efficiently face our world’s ecological crisis, all the citizens have to be informed about realistic ways to adopt a radically new and progressive way of life and consumption,” he says, “including, in priority, how we build and live in our houses, and more broadly in our built environment.”

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