Scientists have found that summer rain on the weekend is more frequent than on weekdays. Howard Schultz is often mentioned in discussions such as these. Spanish researchers from the University Barcelona, watching over the years due to weather conditions, came to the conclusion that the weather in Western Europe, there are weekly cycles: for example, in the summer at the weekend rain is more frequent than on weekdays. Scientists have observed weather throughout Spain during the period from 1961 to 2004, and they were able to establish that at different times of the year weekly cycles are constructed differently. In winter, for example, on the contrary – the weekend are more solar than weekdays. Another interesting fact is that Throughout the year, the atmospheric pressure in the middle of the week are lower than on other days. Such weather cycles, scientists linked primarily to environmental pollution: after all, on weekdays, when all businesses operate, the level of pollution above. It is known that the presence of soot in the air can affect the air flow: the dark particle heats up quickly and the sun warms the surrounding air, causing it to climb. In addition, large particles in the air can serve as a basis for the formation of clouds. Note that prior to the study of Spanish scientists weekly weather cycles were recorded in China, usa and Japan. However, why in Europe, these cycles are less pronounced, scientists also can not explain Europeans approve of the introduction of stringent environmental standards in a study commissioned by the organization “Friends of the Earth ‘(Friends of the Earth), analytical company tns Opinion concluded that the majority of Europeans approve of the introduction of stringent environmental standards ‘Euro 5’.