Essay on light pollution
Answers
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☆What is light pollution?☆
Light pollution is referred to as ‘pollution’ because it adversely affects the night sky, contaminating the darkness with light.
☆Causes of light pollution.☆
1. Electricity. The advent of electricity has enabled us to light our homes brightly through the night. Very often, people act carelessly and illuminate very bright lights at homes and business places – no matter what the hour.
2. 24 hour culture. People are becoming more and more accustomed to restaurants, bars, shops, entertainment and transport networks being available right round the clock – this results in businesses staying lit up 24/7. The effect is cumulative: when one business stays open 24 hours, other businesses often feel that they must follow suit in order to compete for profits.
3. Population density. More and more people have moved to big cities over the last hundred years, and as a result their combined use of light has resulted in more and more light pollution.
4. Brighter bulbs. As bulbs get brighter, the amount of light pollution that they cause increases. Light bulbs should be used for simple illumination, but we have got too much used to over illumination.
☆Effects of light pollution.☆
1. Skyglow. Skyglow is the name for the reddish-yellow glow in the sky that persists throughout the night due to light pollution in the city below. Another type of glow is known as ‘gegenschein’: this refers to the way that the sun’s rays illuminate gas and dust in the atmosphere causing a wide-ranging glow. Gegenschein is more pronounced in cities where the air is full of pollutants.
2. Disrupted sleep patterns. When it seems that the city never sleeps – neither can we. When the lights are on all through the night, we may find it hard to sleep well or relax. Especially if we live with a street lamp burning outside our window. The pituitary gland in the human body responds to bright lights: when the light is bright, this gland will release chemical signals that cause us to feel awake, and when our surroundings are dark it releases signals that leave us feeling sleepy.
Light pollution is a very real problem. Just take a look at an aerial photo of the earth at night and you will see that many of our cities are so light polluted that they glow incredibly brightly in the darkness. Light pollution is disruptive to both human and animal life.
However, there are several simple ways that we can stop light pollution. So why not take a few positive steps today to diminish the amount of light pollution in your area, and encourage other people and businesses to do the same? That way, we will all be able to appreciate the beauty of a starry sky even if we live in one of the world’s big cities.
Hope it helps ☺⚡✌
Introduction: In this era of science, there are some curses on where there is some boon to human beings. Pollution is a curse that is born from the womb of science and most people are forced to bear it.
Pollution means: Pollution means-blaming fault in natural equilibrium. Not getting pure air, getting pure water, getting pure food, or getting a peaceful environment.
There are many types of pollution! Major pollution - air pollution, water pollution and noise pollution.
Air Pollution: This pollution in the metros has spread more. Twenty-four hours there, the smoke of factories, black smoke of motor vehicles has spread like this that breathing in healthy air has become confusing. The women of Mumbai go to take out the washed clothes from the roof, then black-black particles get frozen on them. These particles go into the human lungs with respiration and give birth to incurable diseases! This problem is more where there is densely populated, there is a lack of trees and the environment is tight.
Water Pollution: The contaminated water of tomorrow-factories produces fierce water pollution in the river basins. At the time of flood, the waste water of the factories gets dissolved in all the drains. This causes many diseases.
Sound pollution: Humans need a peaceful environment to live. But nowadays, noise of the factories, noise of traffic, molten sound of motor vehicles and loud speakers, has given birth to deafness and stress.
Side effects of pollution: Due to the above pollution, the health of the human life has been threatened. The man is craving till long breathe in the open air. Due to dirty water, many diseases go into the crops that reach dead in the human body causing deadly diseases. Thousands of people died due to the gas emanating from the Bhopal gas factory, so many people became crippled. Due to environmental pollution, there is no rain on time, nor does the cycle of cold-summer cycle run smoothly. The cause of natural outbreaks like dry, flooding, wetting is also pollution.
Due to pollution: Kal-factory, excess use of scientific instruments, fridges, coolers, air conditioning, power plant etc. are more guilty to increase pollution. Deteriorating natural balance is also the main reason. The cutting of the trees to blindfolding makes the cycles of weather impaired. Due to lack of greenery in densely populated areas pollution has increased.
Improvement measures: To avoid various types of pollution, more trees should be planted, the amount of greenery is high. There are dense trees along the roads. Populated areas should be open, airy and green with water. Tomorrow-factories should keep away from the population and think of ways to destroy polluted stools out of them.