It includes the study of temperature changes taking place in the atmosphere and comparing them with previous temperature records. By analyzing the change in weather patterns and the factors involved in causing such shifts in the weather cycles, its effects on climate change is studied. Studying the effects of El Nino and La Nina on the global temperatures as well as the Polar vortex and the disturbance in the jet streams causing temperature variations in Northern and Southern hemispheres. Release of various gases which cause temperature fluctuations either due to natural disasters or as a consequence of anthropogenic activities. Effects on temperature due to decrease in the amount of solar radiations reaching the earth's surface, the shift in our planet 's axis and its reducing magnetic field strength.