Climate change always

The Earth has constantly gone through shifts in climate occurred naturally, changing from warm to cold climates and vice versa for long periods or suddenly. In these changes, temperature has overcome the present average temperature -15 degrees Celsius- by about 8-15 degrees Celsius, preventing ice from remaining on the Poles.

Scientists distinguish two main natural causes to explain the origins of climate changes: external and internal causes. Firstly, the external causes are related to the Earth’s orbital movements and their relationship with the Sun as the planet’s main source of energy, so that its variations will influence on climate changes.

At the beginning of the 20th century the mathematician Milutin Milankovitch pointed out the main external causes of the climate’s variability.

unidad_1 image_60 Milutin Milankovitch (1879-1958) was a Serbian mathematician who started his research in Belgrade University. It had soon to go away to Budapest because of the First World War. Here he started to work in the library of the Hungarian Science Academy where he researched on the ice ages’ origins. As a result of this research, Milankovitch established an astronomical theory on the relationship between the Earth’s orbital movements, the sunshine degree and the Earth’s climate.