It's not ignored. From NASA: "The amount of solar energy Earth receives has followed the Sun’s natural 11-year cycle of small ups and downs, with no net increa

It's not ignored. From NASA: "The amount of solar energy Earth receives has followed the Sun’s natural 11-year cycle of small ups and downs, with no net increase since the 1950s. Over the same period, global temperature has risen markedly. It is therefore extremely unlikely that the Sun has caused the observed global temperature warming trend over the past half-century." Relevant figure: https://royalsociety.org/-/media/Royal_Society_Content/policy/projects/climate-evidence-causes/fig2-large.jpg https://royalsociety.org/-/media/Royal_Society_Content/polic... It's not a lot. See also: https://royalsociety.org/topics-policy/projects/climate-change-evidence-causes/question-4/ https://royalsociety.org/topics-policy/projects/climate-chan... If you have better data, I'd like to see it.