In Sweden, architects are attempting to journey back to the days before concrete, bricks, and steel, and building impressive towers made with timber, The Washington Post reported. The architects told the Post that, at least in the heavily forested areas of Sweden, wood-based architecture is the future of sustainable building for several reasons. The building material's emissions have grown faster than most other single sources of carbon dioxide thanks to their increased demand and production, Inside Climate News reported. In places like West Africa , architects like Diébédo Francis Kéré are turning back to traditional building materials like soil, stone, and vegetation as sustainable building materials . "The built environment — as it is built now — is not sustainable," Michael Green, the author of "The Case for Tall Wood Buildings," told the Post.

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Persons: —, Robert Schmitz, Therese Kreisel, Sara, JONATHAN NACKSTRAND, White Arkitekter, Sara center's, Diébédo Francis Kéré, Michael Green Organizations: Service, Washington Post, Post, Sara Cultural Center, Getty, Sweden doesn't, Climate, University of Rochester, World Steel Association Locations: Sweden, Skelleftea, AFP, Stockholm, Europe, Asia, West Africa