Rain is a natural phenomenon that occurs when water vapor condenses in the atmosphere and falls to the ground in the form of precipitation. This cycle is vital on our planet to maintain life on Earth. Rain contributes to maintaining ecosystems, agriculture, human life and the climate in general. However, many of us wonder why it doesn't rain .

What are the causes of it not raining?

There are several causes that explain why it does not rain in Spain . Some of the most common causes that we can find are:

• Lack of humidity in the air: When the humidity in the air is low, it is more difficult for clouds and rain to form. This situation can occur during periods of dry weather or when there is a large amount of dry, warm air coming from the Sahara Desert.
• Changes in wind patterns: Wind is another important element that influences the formation of clouds and rain. If there is any type of change in wind patterns, it can cause a lack of rain in certain areas.
• The presence of anticyclones: Anticyclones are areas of high pressure that can block the arrival of fronts and atmospheric disturbances with the capacity to attract rain. This climatic phenomenon can occur at any time of the year.
• Climate change: This natural phenomenon can produce changes in precipitation patterns around the world, including of course Spain, and is one of the reasons why it does not rain . Some studies have proven that climate change is causing more intense and more frequent droughts in some regions of Spain.

What can happen if it doesn't rain?

The lack of rain can produce negative effects on the environment, agriculture, economy and society in general. Some of the most common impacts are:

• Droughts: If it does not rain for a prolonged period it can cause droughts. These affect crop production, livestock feeding, water quality or tourism, among others.
• Water scarcity: Rivers, lakes and aquifers can decrease their level, which can lead to water shortages. Having a negative impact on people's lives.
• Forest fires: Lack of water can cause soils and vegetation to dry out, thus increasing the risk of forest fires.
• Health problems: Rain also affects air quality, so its absence causes an increase in the concentration of dust, pollen and other pollutants, which have a negative impact on people's health, mainly those who suffer from allergies or respiratory diseases.
• Changes in biodiversity: More specifically affecting those sensitive ecosystems, such as forests, jungles and other areas of high humidity. The decrease in water can affect the survival of some species, in addition to altering the ecological balance.