Skip Navigation

FORCE MAJEURE The Sun’s Role in Climate Change

March 6, 2019
By Henrik Svensmark

Research showing most powerful driver of the earth's climate now and throughout history is the sun.

This study be Svensmark discusses the three main theories describing the sun's role in climate change: 

• solar ultra violet changes

• the atmospheric-electric-field effect on cloud cover

• cloud changes produced by solar-modulated galactic cosmic rays (energetic particles originating from interstellar space and ending in our atmosphere).

Svensmark argues, "at the moment cosmic ray modulation of Earth’s cloud cover seems rather promising in explaining the size of solar impact. This theory suggests that solar activity has had a significant impact on climate during the Holocene period ... in contrast to the official consensus from the Intergovernmental Panel on Climate Change, where it is estimated that the change in solar radiative forcing between 1750 and 2011[has been]...  negligible relative to the effect of greenhouse gases.