El Sol y el clima en la Tierra

We argue that the solar activity cycle induce periodic variations in rain-snow precipitation and sea-air temperatures, that cause mean sea level oscillations. We present observational evidence in favor of the above hypothesis, starting with a brief historical background of studies of solar cycle influence on climate. The evidence indicates that the Solar and Cosmic rays cycles are correlated with changes in temperature and precipitation. We analyzed data for the monthly mean sea level at San Juan and Magueyes Island in Puerto Rico, seeking correlations between sea level fluctuations and solar, cosmic rays and temperature cycles. Our analysis reveals that a solar activity cycle minimum (cosmic ray intensity maximum) correlates with lower than average temperatures and mean sea levels. We have verifiedthe above conclusions, using data from more than 1000 mean sea level stations around the world. We discussed, as a possible explanation of the above correlations, that the solar and cosmic rays cycles could cause larger than average accumulation of continental water and snow with lower temperatures contracting the oceans, thus implying lower mean sea levels. Right now, we are in a minimum in solar cycle activity, and therefore there will be a tendency to reduce the global warming effects due to humans.