Weather constantly being lost to space, creating what is essentially a very thin atmosphere throughout the Solar System. The movement of mass ejected from the Sun is known as the solar wind. On Earth, the common weather phenomena include wind, cloud, rain, snow, fog and dust storms. Less common events include natural disasters such as tornadoes, hurricanes, typhoons and ice storms. Almost all familiar weather phenomena occur in the troposphere (the lower part of the atmosphere). Weather does occur in the stratosphere and can affect weather lower down in the troposphere, but the exact mechanisms are poorly understood. Weather occurs primarily
Weather risk management "Accounting for weather derivatives" provides guidance on accounting for weather derivatives that are not exchange–traded. Entities that enter into speculatives or trading non–exchange derivatives contracts should apply the intrinsic method. Weather risk management Weather risk management is a type of risk management done by organizations to address potential financial losses caused by unusual weather. Energy, agriculture, transportation, construction, municipalities, school districts, travel, food processors, retail sales and real estate are all examples of industries whose operations and profits can be significantly affected by the weather. For example, unusually mild winters diminish consumer demand for heating and erode the profit margins