atmosphere

Global mean surface air temperature has risen gradually since the age of industrialisation. It is now accepted as scientifically proven that we humans are responsible for a significant part of this increase. Hence one speaks of anthropogenic, or man-made, climate change.

Climate is described in terms of mean values, characteristic extreme values, and frequency distributions of meteorological parameters such as air pressure, wind, temperature, cloud cover, and precipitation over a certain period of time and larger area.