It takes 8 minutes for light and heat to reach us, but understand that the Sun alone is not responsible for Earth's warmth. The atmosphere of the Earth allows the greenhouse effect to occur with the Sun's energy, thus keeping the planet warm.
What I was trying to say is that the heat from the Sun is constant and not variable enough for any significant difference to our atmosphere. A significant change would span across hundreds of years, not in the course of 60 years...the sharp jump in that graph I posted is from the increased greenhouse gases from global industrialization. The thicker the atmosphere, the more energy gets trapped, and thusly our planet warms up as the heat cannot dissipate back into space as easily.
What I was trying to say is that the heat from the Sun is constant and not variable enough for any significant difference to our atmosphere. A significant change would span across hundreds of years, not in the course of 60 years...the sharp jump in that graph I posted is from the increased greenhouse gases from global industrialization. The thicker the atmosphere, the more energy gets trapped, and thusly our planet warms up as the heat cannot dissipate back into space as easily.