Proterra is an Ibero American organization promoting

earthen architecture An earth structure is a building or other structure made largely from soil. Since soil is a widely available material, it has been used in construction since prehistoric times. It may be combined with other materials, compressed and/or baked t ...

. It was initially founded as a four-year project of CYTED in 2001,Terra 2008 The 10th International Conference but continued to become a

UNESCO The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) aimed at promoting world peace and security through international cooperation in education, arts, sciences and culture. It ...

WHEAP The World Heritage Earthen Architecture Programme (WHEAP) is a UNESCO initiative promoting earthen architecture founded in 2007 and running till 2017. Sites At the programme's conclusion in 2017, the 150 World Heritage Sites in its ambit were th ...

partner in 2012.

References

Architecture organizations Organizations established in 2001 UNESCO {{Organization-stub