Association for Preservation Technology International:
ECI is a non-profit organization formed in San Antonio, Texas that has been organized exclusively for the education and scientific purposes of building with earthen materials. ECI Presents Series is a monthly informational presentation to advance and promote earthen construction. The July meeting is about high-performance mechanical systems for earthen homes presented by Kristof Irwin, PE of Positive Energy and host of the The Building Science Podcast.
Additional information can be found here: https://earthenci.org/