Climate change refers to a long-term shift in weather conditions, including temperature, precipitation, winds, and other indicators. This may vary from region to region. For example, temperature increases will vary from one region to another, and precipitation may increase in some regions but decrease in other regions. Global warming refers specifically to an increase in the global average surface temperature. Global warming is an indicator of climate change. It is often misunderstood to imply that the world will warm uniformly. In fact, some areas of the world will warm more, while others will warm less than the global average. Natural variability, year-to-year, decade-to-decade, is superimposed on this long-term change.