Atmospheric temperature refers to the average temperature of the Earth's atmosphere, taken over a period of time and at a specific location. It is an important measure in understanding weather patterns and climate trends, as it provides insight into how our planet is heating up due to human activities such as burning fossil fuels and deforestation. The atmospheric temperature can be measured using various methods, including thermometers placed at different heights above the ground or ocean surface, satellite measurements, and weather balloons. These measurements are then used by meteorologists and climate scientists to make predictions about future weather patterns and track changes in our planet's overall climate.