New paper finds another amplification mechanism by which the Sun controls climate, via water vapor – Published in Advances in Space Research
Study 'finds changes in solar activity during 11 year solar cycles exert control over interannual changes in atmospheric water vapor. In turn, "Water vapor is the most important greenhouse gas. It plays a major role in the dynamics of atmospheric circulation, radiation exchange within the atmosphere, and climate variability. Knowledge of the distribution of water vapor is important for understanding climate change and global warming."