CLIMATE CHANGE
Significant transition in temperature and weather patterns over longer period of time is called climate change. These variations can be natural or it can be caused by volcanic eruptions or solar activity variation. But Human actions have been the main cause of climate change since 1800s.
Pre-anthropogenic change in temperature was caused by volcanic eruptions and solar irradiance (Crowley and Thomas 2000). The temperature of earth is increasing rapidly over past 100 years which is changing the pattern of weather.
