Evidence for human influence on climate from hemispheric temperature relations

Abstract

Analysis of observational temperature records for the Northern end Southern hemispheres Indicates a statistical relationship in which Northern Hemisphere temperature depends on temperature in the Southern Hemisphere. This pattern, which has strengthened over time, can be explained by the climatic effects of anthropogenic trace gases and tropospheric sulphate aerosols. A similar statistical pattern is produced by model simulations of the historical atmosphere. Show more