The research problem addressed by the proposed project is the security and resiliency of prairie industrial water supplies in a changing climate. This problem is significant because water-consumptive industries in the Prairie Provinces are a major contributor to the national economy, but they depend on secure and reliable water supplies in a region characterized by a permanent water deficit (in average years). Given the potential for prolonged water deficits in a future warmer climate, there is no guarantee that industrial water allocations will have sufficient priority to be honoured. The proposed project adopts a novel methodology, involving the assimilation of paleo and projected hydroclimate, to investigate the extent to which future soil moisture and streamflow might depart from the hydroclimate of the past millennium.