Solar contribution to Earth's global warming?

Trakia University, Stara Zagora, Bulgaria

^* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Published online: 15 April 2026

Abstract

Global warming is a phenomenon threatening humanity. Can we fight it? It appears that humanity has accepted the notion that the phenomenon is caused by the release of greenhouse gases resulting from human activity, and that if we cease emitting them, global warming will cease. To this end, the world allocates approximately $3 trillion annually. Are these funds being used correctly? The answer in this article is no - the phenomenon has a natural cosmic origin, and its effects can be mitigated by different measures than those used so far. A continuous series of air temperature data spanning decades is available from ground-based meteorological stations, primarily in Europe but also elsewhere. The study utilized data from over 800 stations worldwide. The combined analysis of two data series—ground temperature and Sunspot Number (SSN)—during the "rise" phase of the solar cycle reveals a high correlation between them, suggesting a possible link between Earth's global warming and a cosmic cause—a chain of solar phenomena. This changes the approach to mitigating global warming—we need to increase Earth's reflectivity. Data show that the processes in the Sun that led to today's global warming began during the 15th solar cycle.