Does Decrease in Rainfall Cause Water Shortages? – Here Is the Answer
Most of the people believe in the simple theory that decreasing rainfall in the world is causing water shortages. But this is not as simple as it sounds. The fact is that changes in the global climate result in decrease in the rainfall and this is what causes water shortages. Let us have a look.
Polluted environment may reduce decrease of rainfall
It has been established by researchers that pollution causes a great harm to the environment and that it leads to global warming. Indiscriminate use of fossil fuels is one of the factors that may be contributing heavily to environmental pollution. Similarly, the gases released by appliances like refrigerators, air conditioners, etc. also contribute to contamination of air and the environment.
A study about the climate that prevails in the Chinese mountains reveals that air pollution can severely diminish rainfall that may ultimately cause serious water shortages. In fact, this is true for all the polluted areas of the world. A good buddy of mine over at Gutter Repair Roswell Ga is very passionate about this issue and attends all kind of conferences on it.
In general, mountainous regions are wetter because when air goes up over hills, it gets cooled and condenses. Due to this, rainfall is more on the hills, more particularly on the side where the cooling and condensation of air take place. This type of rain is called ‘Orographic rain.’
Researches who studied this phenomenon have concluded that air pollution may retard this precipitation or may completely stop this process. Small aerosol particles in the air have the capabilities to alter the properties as well as the size of the water drops clouds contain. This can negatively impact the rainfall.
A study reveals that the Western United States has witnessed decrease in rainfall thus causing severe water shortages in the region. In fact, the decrease in rainfall is to the tune of 10 to 25%. Researchers strongly feel that tiny particles that are present in the air are the “culprits” for this decrease. Of course, robust tests have to be conducted for confirming this assumption.
Harm caused by deforestation
It is true that the population has been increasing at a rapid pace. Especially, under-developed countries face the huge problem of providing living spaces to their people. But living spaces are very limited and hence, authorities are turning a blind eye to habits like felling of trees and clearing forests for building cities and providing living accommodation to people. It is quite evident that they do not realize the dangers this habit can cause. When forests disappear from the face of the earth, it accelerates the global warming phenomenon. Trees play a vital role by taking in the carbon dioxide present in the atmosphere and by releasing oxygen. When trees are felled, the amount of oxygen released by them will naturally come down. Therefore, when environmental pollution increases, it results in decreasing rainfall in the world causing water shortages.
The only solution to surmount this problem is that people have to be educated suitably so they will refrain from felling trees and destroying forests. Governments should focus more on using renewable energy sources instead of using fossil fuels for generating electricity. The slogan of “afforestation” should replace deforestation. These steps will reduce the impact of the decreasing rainfall in the world that is causing water shortages.