Climatology, also known as climate science, is the learning of the planet's weather patterns and the systems that produce them. This area of science focuses on recording and studying weather patterns throughout the world and considering the atmospheric states that cause them. It is sometimes puzzled with meteorology, which is to learn of weather and weather forecasting. However, the study in climatology is mainly focused on the natural and artificial phenomenon that stimulates long-term weather patterns. The scientific reason behind climate change is supported by substantial scientific research performed and announced across the world. Past and present climate information is collected from impressions and assessment of our environment, including trapped air in ice from thousands of years ago. Climate models are used to understand the causes of climate change and to project changes into the future.