Manuel Peimbert wife, fellow UNAM faculty member Silvia Torres, were the first non-US scientists to win the Hans Bethe Prize. Peimbert was elected an international member of the American Philosophical Society in 2002. Peimbert is the great-grandson of writer Justo Sierra. Manuel Peimbert Manuel Peimbert Sierra (born June 9, 1941) is a Mexican astronomer and a faculty member at the National Autonomous University of Mexico (UNAM). After earning an undergraduate physics degree from UNAM, Peimbert completed a doctorate at the University of California, Berkeley before returning to UNAM as a faculty member. He works at the UNAM Institute of Astronomy. Peimbert was
Enrique Leff etc. Enrique Leff Enrique Leff (born Mexico, 1946) is a Mexican economist, who defines himself today as an environmental sociologist and environmentalist. He has written 25 books and 180 articles on political ecology, environmental sociology, environmental economics, environmental epistemology and environmental education. He is regarded as one of the key environmental thinkers in Latin America. After a degree in chemical engineering from UNAM (Universidad Nacional Autónoma de México) in 1968. Leff graduated with a Doctorat de Troisième Cycle in development economics from the École Pratique des Hautes Études, Paris, in 1975. Leff lectured at UNAM (Universidad Nacional Autónoma de México)