Weiss has directed the Yale University Tell Leilan Project's excavations and surveys in northeastern Syria since 1978. His most recent contribution to environmental archaeology has been his hypothesis that abrupt, century-scale, climate changes altered prehistoric and ancient West Asian societies' developmental trajectories, such as the abrupt climate change 4,200 years before present that reduced agricultural production in northern Mesopotamia, forced regional abandonment and habitat-tracking, disrupted Akkadian imperial revenues, and thereby forced the political collapse in southern Mesopotamia.
- Weiss, Harvey (2001). "Akkadian Empire". In Peregrine, P.; Ember, M. Encyclopedia of Prehistory. 8 : South and Southwest Asia. New York: Springer. pp. 21–23.
- "Harvey Weiss". Yale University. Retrieved May 11, 2012.
- Weiss, H., ed., 2012 Seven Generations Since the Fall of Akkad. Wiesbaden: Harrassowitz; Kaniewski, D., E. van Campo, H. Weiss 2012 "Drought is a recurring challenge in the Middle East," Proceedings of the National Academy of Sciences 109.10: 3862-3867; Staubwasser, M. and H. Weiss 2006 "Holocene Climate and Cultural Evolution in Late Prehistoric-Early Historic West Asia," Quaternary Research 66.3: 372-387; Weiss, H. and R. Bradley 2001 "What Drives Societal Collapse?" Science 291: 609-610; Weiss, H. 2000 "Beyond the Younger Dryas: Collapse as Adaptation to Abrupt Climate Change in Ancient West Asia and the Eastern Mediterranean." In Environmental Disaster and the Archaeology of Human Response. Edited by G. Bawden and R. M. Reycraft. Albuquerque, NM: Maxwell Museum of Anthropology, pp. 63-74; Dalfes, H. N., G. Kukla, H. Weiss, eds., Third Millennium BC Climate Change and Old World Collapse. NATO ASI Series, Global Environmental Change, vol. 49. Berlin: Springer; Weiss, H., et al., 1993 "The Genesis and Collapse of North Mesopotamian Civilization," Science 291: 995-2008.