This highly technical and scientific paper brings together all the recent evidence from Dharamjali Cave in the Himalayas over a 230 year period around 2000 BCE, when the ancient Indus civilization was in decline, to show "that repeated intensely dry periods spanned multiple generations. The record highlights the deficits in winter and summer rainfall during the urban phase of the Indus Civilization, which prompted adaptation through flexible, self- reliant, and drought-resistant agricultural strategies."
An important contribution synthesizing many fields of research. The authors write: "This paper will explore the nature and dynamics of adaptation and resilience in the face of a diverse and varied environmental and ecological context using the case study of South Asia’s Indus Civilization (ca. 3000–1300 BC), and although it will consider the Indus region as a whole, it will focus primarily on the plains of northwest India."