This volume contains eight papers on cross-cutting national issues related to global climate change. The first synthesizes current knowledge on two categories of costs associated with climate change: the costs of adapting to those changes that are not avoided by mitigation, and the costs of the residual impacts after adaptation. The second paper discusses the impact of climate change on natural hazards, adaptation, and their costs. This is followed by presentation of the case for integrated assessments of air issues: climate change, stratospheric ozone depletion, acid deposition, smog, suspended particulates, and hazardous air pollutants. The fourth paper examines the effect of climate change outside Canada on Canadian interests, specifically in the areas of international trade, food and military security, and refugees. Paper five reviews the literature on domestic flows of goods and services in Canada as related to climate change. The sixth paper reviews patterns of changing climate and effects of climate change on landscapes, as driven by shifting ranges and ecozones, hydrological changes, permafrost melting, and rising sea levels. Paper seven explores the consequences of climate change and sustainable development remaining as separate discourses, noting the need for climate change and sustainable development to be represented in a more explicit manner in each other's research agendas. The final paper focuses on the land-based economy of Canada's northern indigenous peoples and how climate change may effect them.