‘Sunspots do impact climate’: Peer-reviewed results, appearing in several journals, make it difficult to maintain that changes in solar activity play no or an insignificant role in climate change’
Astrophysicist Dr. Willie Soon and Dr. William M. Briggs: 'Even small changes in solar radiation may have a strong effect on Earth's temperature and climate' -- 'Given the wide, and perhaps at times excessive, interest in tying carbon dioxide to climate, there has been relatively little work investigating the solar-climate connection'