“There is chemistry here…the sun provides the heat that creates the green house gases.”
The sun’s impact on global warming
The Sun is the Earth’s primary energy source and influences the climate, but its role in the current rapid global warming is widely considered to be very small.
“This reinforces my position that global warming is not cause by some sort of cycling of the Sun’s power but is being caused by greenhouse gases”
Evidence points to greenhouse gases
If the Sun were causing global warming, scientists would expect to see warming throughout all layers of the Earth’s atmosphere.
However, observations show warming at the surface and in the lower atmosphere (troposphere) and cooling in the upper atmosphere (stratosphere).
This pattern is consistent with the warming effect of greenhouse gases, which trap heat closer to the Earth’s surface.
The warming driven by human-produced greenhouse gases since 1750 is estimated to be over 270 times greater than the slight extra warming from the Sun during the same period.
The IPCC concludes that it’s unequivocal that human influence has warmed the atmosphere, ocean, and land.
In conclusion, while the Sun is vital for Earth’s climate and has influenced past climate changes, the current rapid global warming is primarily driven by human activities and the increase in greenhouse gas concentrations.
