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when it rains it falls more water than usual and when the dry period comes, it lasts longer than usual: uneven precipitation in consequences of climate change This is not a question of the future, but a reality that is deteriorating at a rate of 1.2% per decade, especially in Europe, Australia and North America.

This is evidenced by a joint study Institute of Atmospheric Physics, Chinese Academy of Sciences SciencesUniversity of the same academy and the UK Meteorological Office, which will appear this Thursday in the journal Science.

The study, which was the result of systematic observational tests, shows systematic increase precipitation variability from 1900 to the current decade at both global and regional scales, on a daily and seasonal basis.

The data show that rainfall variability has increased since the 20th century 75% of land area have been studied, particularly in Europe, Australia, and eastern North America.

Moreover, the daily variability of precipitation worldwide is increasing by 1.2% per decade, meaning that precipitation is distributed more unevenly over time, leading to periods wet further rainy than usual now periods dried drier than usual.

In one day it rains as much as it used to rain once in a year.

“In some places it may rain, just like it rained during the whole year in just a few days and then have long periods from drought followed by heavy rainfall or with a rapid change drought And floods— says one of the authors, Zhou Tianjunfrom the Institute of Atmospheric Physics, Chinese Academy of Sciences.

“While climate models predict that these disturbances will increase in the future due to climate change, our study confirms that we are delaying this process. impact of global warming since the last century, and the situation is getting worse. The future that worries us so much is already here.” he points out.

The researcher has no doubt about the reason: “The great unevenness of precipitation is due to anthropogenic emissions of greenhouse gases, which have caused a warmer and more humid atmosphere.”