Three to four billion years ago, the Sun emitted only 75% as much power as it does today.  If the atmospheric composition had been the same as today, liquid water should not have existed on Earth. However, there is evidence for the presence of water on the early Earth, in the Hadean and Archean eons, leading to what is known as the faint young Sun paradox.  Hypothesized solutions to this paradox include a vastly different atmosphere, with much higher concentrations of greenhouse gases than currently exist.  Over the following approximately 4 billion years, the energy output of the Sun increased and atmospheric composition changed. The Great Oxygenation Event—oxygenation of the atmosphere around 2. 4 billion years ago—was the most notable alteration. Over the next five billion years from the present, the Sun's ultimate death as it becomes a red giant and then a white dwarf will have large effects on climate, with the red giant phase possibly ending any life on Earth that survives until that time. 
We have many A-Z keywords for this term. We offer them for FREE unlike many other keyword services, however we do require that you are a registered member to view them all so that the costs will remain lower for Us.
These are the linked keywords we found.
These are some of the images that we found within the public domain for your "Climate" keyword.