Global warming indicates the increase in the average temperature of Earth's atmosphere and oceans. It is one of the kinds of global climate change and also RCC.

For current interstadial (warming period), which began in mid-19th century we instrumentation measurement (temperature) from the very beginning (1850). In addition to ground stations and measurements on ships since 1979 are also available data from space satellites. Compared to the average for the years the average global temperature for the years increased by 0.76 ± 0.19 ° C. It should be borne in mind that the calculation of the average global temperature is very complex because measuring stations are not evenly spaced, measuring devices in the past and changed around some stations there were extensive changes in land use (eg urbanization). In addition, the average global temperature itself is of very little importance for regions where the local climate develops differently.