In 1975 he became an assistant professor in physics at the University of Jordan in Amman.
In 2010-2011, Howe was a J. William Fulbright Scholar in Amman, Jordan where she taught American Indian and American literatures at the University of Jordan, Amman.
Among his honoraria are the University Award of Highest Honour (Soka University); Doctor Honoris Causa (University of Jordan); Chile's National Prize for the Promotion and Defense of Human Rights; and the Kenneth Boulding Award, the highest honour bestowed by the International Society for Ecological Economics (August 2008).
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Plumbly went on to study Arabic, first in Shemlan, Lebanon, where he lived with a family for a year and a half, and then at the University of Jordan with the outbreak of the Lebanese civil war.