## 3 Conclusions
A correlation between the global average of low cloud cover and the flux of Galactic cosmic Rays incident in the atmosphere has been observed (Figure 3). Using data derived from International Satellite Cloud Climatology Project (ISCCP) and ground based diffuse solar radiation data provide a new evidence for a non linear effect of galactic cosmic rays on environment of the earth [36]. The observation was established across the UK, on days of high cosmic ray flux (above 3600x10\({}^{2}\) neutron counts h\({}^{-1}\)) compared to low cosmic ray flux, the chance of an overcast day increases by 20%. They also observed that during Forburnsh events simultaneous decreases occur in the diffuse fraction. Cosmic ray variations are possible to correlate with geomagnetic storms, which changes the ionospheric currents and triggering of seismic activities [37, 38 and 39]. For hailstorm or snowstorm or heavy cloud formation it is essential that Earth's atmosphere should have a sudden increase in micro dust particles. Data of star storm shows that recent hailstorm has developed subsequently after the star storm. The reason for the weakening of the Sun's magnetic shield is the increased solar activity, which leads to a highly disordered field configuration. In the mid-1990's, during the last solar minimum, the Sun's magnetic field resembled a dipole field with well-defined magnetic poles (North positive, South negative), very much like the Earth. Unlike Earth, however, the Sun reverses its magnetic polarity every 11 years. The reversal always occurs during solar maximum. That's when the magnetic field is highly disordered, allowing more interstellar dust to enter the Solar System. It is interesting to note that in the reversed configuration after the recent solar maximum (North negative, south positive), the interstellar dust is even channeled more efficiently towards the inner Solar System. It was expected that more interstellar dust would occur from 2005 onwards, but it has appeared in December 2004. The Sun has entered the zodiac's 13 th house. An interstellar wind hit our planet. It's a helium-rich breeze from the stars, flowing into the solar system from the direction of Ophiuchus. The Sun's gravity focuses the material into a cone and Earth passes through it during the first week of December. Earth was inside the cone during 25 th December 2004 and 23 rd February 2005. Grains of stardust are very small, about one hundredth the diameter of a human hair, hence they do not directly influence the planets of the Solar System. However, the dust particles move very fast, and produce large numbers of fragments when they impact asteroids or comets. It is, therefore, conceivable that an increase in the amount of interstellar dust in the Solar System will create more cosmic dust by collisions with asteroids and comets. It is possible that the increase of stardust in the Solar System will influence the amount of extraterrestrial material that rains down to Earth. How the Earth's surface temperature adjusts to a given change in star-solar radiation depends on the processes by which the climate system responds to variations in the energy it receives [40, 41, 42, 43 and 44]. Some of these factors amplify the effects of changes that are imposed; others reduce them. Lumped together, they make up what is called the sensitivity of the climate system, which indicates the number of degrees by which the mean-surface temperature will be raised or lowered in response to a given change, up or down, in solar and/or extra terrestrial radiation or any other climate driver. The temperature data of west USA shows a declining trend of -0.68 degree F /decade, which is considered to be anomalous in the rising trend of 0.05 deg F /decade for USA. Thus, it is concluded that starbursts influences variables of the Sun-Earth environment, which in turn leads to climate change including snowfall. Sudden change in these variables like Kp, Proton flux and E-flux influence environment of the Earth abruptly (Figure 2).