PAOC's Paul O'Gorman suggests that hemispheres will respond to climate change differently...In a recent paper Understanding the varied response of extratropical storm tracks to climate change, in PNAS (Proceedings of the National Academy of Sciences), Prof. Paul O'Gorman reports that, according to his analysis, weather systems in the Northern and Southern hemispheres may respond differently in the presence of global warming, with warming affecting the availability of energy to fuel extratropical storms, or large-scale weather systems that occur at Earth's mid-latitudes.