• Outline the global circulation system, including the effects of high and low pressure belts in creating climatic zones. • Explain how the global circulation of the atmosphere causes extremes in weather conditions in different parts of the world. • Describe the extremes in weather conditions associated with wind, temperature, and precipitation in contrasting countries. • Analyze the distribution and frequency of tropical storms and drought, and assess whether these have changed over time. • Outline the causes of the extreme weather conditions associated with tropical storms. • Outline the causes of the extreme weather conditions of El Niño/La Niña leading to drought.