evidence: It is clear from many lines of evidence that human activities—not solar activity—are responsible for modern climate change. Misleading: Evidence shows that solar activity can explain very little of the observed warming since the Industrial Revolution. [...] The scientists’ comments below explain that besides this cosmic ray hypothesis, the solar radiative forcing fluctuations are also insufficient to explain climate changes over the past decades—in contrast to the radiative forcing due to the increased greenhouse gases released by human activities, which matches the magnitude of the observed warming.