She has been called a pioneer in the concept of ecopsychology—the belief that promoting environmentalism is healthy.

[1][2] She is a social-change activist with an emphasis on feminism, bioregionalism, and indigenous rights.

[3] She promotes human cultures which are land-based and confined to bioregions, and is a critic of the use of technology.

[4] In 2007 Glendinning's bilingual folk opera De Un Lado Al Otro, was presented at the Lensic Theater in Santa Fe, New Mexico.

[5] Glendinning graduated from the University of California, Berkeley in social sciences in 1969.