How much has the Sun influenced Northern Hemisphere temperature trends? An ongoing debate

Most of the energy in the Earth’s atmosphere comes from the Sun. It has long been recognized that changes in the so-called “total solar irradiance” (TSI), i.e., the amount of energy emitted by the Sun, over the last few centuries, could have contributed substantially to recent climate change. However, this new study found that the UN’s Intergovernmental Panel on Climate Change (IPCC) only considered a small subset of the published TSI datasets when they were assessing the role of the Sun in climate change and that this subset only included “low solar variability” datasets. As a result, the IPCC was premature in ruling out a substantial role for the Sun in recent climate change.

A diverse expert panel of global scientists finds blaming climate change mostly on greenhouse gas emissions was premature. Their findings contradict the UN IPCC’s conclusion, which the study shows, is grounded in narrow and incomplete data about the Sun’s total solar irradiance.

Quotes from some of the other co-authors

The Center for Environmental Research and Earth Sciences (CERES) is a multi-disciplinary and independent research group.