Global Warming Essay & Paragraph
The increase in the average temperature of the earth is called global warming. This is due to the increase in the amount of greenhouse gases. Greenhouse gases such as carbon dioxide, methane and ozone trap radiation from the sun. It raises the temperature. If you are looking to write an essay on global warming, you need to have a clear idea about the interaction and effects of greenhouse gases and global warming. This is something that threatens the future of mankind. Here are a bunch of essays and paragraphs that shed light on the causes and effects of greenhouse gases and global warming, how they affect our lives and the environment, and ways to address the serious risks of global warming.
Therefore, hopefully, this post will guide you in writing a good essay on global warming.
By: Haque | For class 9-10 | 01-04-’22
What is global warming? Global warming is the increase in temperature around the world. Climate change is happening due to various natural and man-made reasons. Especially in the last century, the temperature of this planet has increased the most. Therefore, climate change has created concern among the nations of the world.
Man is desperately interfering with nature for the evolution of civilization. Therefore, the temperature is constantly rising. So, the whole world is terrified. But to date, no sustainable approach has been discovered to get rid of this negative impact of climate.
A city in Iran recently recorded a temperature of 54 degrees Celsius. It will be one of the highest temperatures recorded in history. Is it a consequence of climate change? It may take some time to confirm, but if it does, governments should take action against possible consequences if temperatures continue to rise.
What causes global warming? The effects of greenhouse gases, widely discussed in the developed world, are one of the main causes of global warming. The sun’s heat from space reaches the earth’s surface, and most of it radiates back into the atmosphere. But too much carbon dioxide, methane, etc. in the atmosphere creates a serious barrier to the heat radiation of the surface, these gases absorb heat and keep the whole surface excessively hot.
Over the last century, carbon dioxide has increased by 25%, nitrous oxide by 19%, and methane by 100%. These figures suggest the severity of climate change. The amount of these harmful gases is also increasing alarmingly due to the expansion of factories and the desire for a comfortable life in the developed world.
Global warming is already having a direct impact on different parts of the world. As a result, excessive droughts, heavy rains, floods, desertification, loss of river navigability, salinity in the water, cyclones, tsunamis, tidal surges, landslides, earthquakes, river erosion, infectious diseases, and various natural disasters are commonplace today.
According to experts, 1.3 billion people in Asia depend on water from glaciers in the Himalayas. But due to the constant increase in temperature, these glaciers are melting very fast. Its harmful effects include flooding or sea-level rise, as well as severe drought. If it continues, the Maldives will gradually sink completely. About two-thirds of the coastal areas of Bangladesh will be submerged. There are also many islands in the Pacific Ocean that will be completely submerged if the temperature rises to just 1.5 degrees Celsius.
There is no debate among scientists about the dire consequences of global warming due to climate change. An international conference on this subject is being held every year. However, some of the industrialized nations, which are expected to reduce their production if appropriate steps are taken to control climate change, are unable to agree on a proposal to reduce greenhouse gas emissions.
In fact, in the interest of protecting the future of mankind on earth, all nations of the world must work together to tackle the harmful effects of climate change and global warming.
Related Post: Environment Pollution Essay & Paragraph
02
Essay on Global Warming: Causes & Solutions
By: Haque; Words: 800; For higher students
What is global warming:
Global warming or change in the global average temperature is the biggest threat the whole is facing today. Precisely, global warming is the rise in the average temperature of the earth’s atmosphere due to the increased concentration of certain greenhouse gases.
Is global warming real:
Some people are still debating if global warming is in progress and the long-term effects of pollution on the environment, but the general consensus among most scientists and researchers is that global warming has started and is going to increase at an uncontrollable rate in the very near future. Either our world leaders are going to recognize global warming as a real threat to humanity and address it properly or the entire human population may become extinct.
Effects of global warming:
The impacts of global warming are both formidable and frightening. As a result of global warming, the present global temperature is modestly increasing. It is found that this temperature will spiral upward causing severe climatic changes much to the agony of human beings.
The foremost among such changes is the abrupt change in the pattern of rainfall the world over. Some parts are likely to get heavy rainfall and some experience moderate and scanty rainfall. It is going to affect world agriculture worldwide. Seasons to grow foods will shorten in some areas and lengthen in other areas, while few farmers will be able to adapt to these changes quickly enough. Due to unpredictable weather conditions, a change in crop patterns and types is likely to take place. This will prove to bless somewhere and curse elsewhere. How far the vicissitudes of climatic factors are going to affect crop production and quality remains to be seen.
Another bitter consequence of global warming is the melting of ice caps in polar zones. Researchers warn that the effect of melting ice has started as the ocean levels are going up though at a negligible pace. With the increase in temperature, the world’s oceans are to rise rapidly causing unwanted inundation of low-lying coastal areas and tsunami-like disasters causing widespread destruction of life and property. People will be forced to evacuate coastal cities, where most of the world’s population now lives, to a higher ground that is more inland. No one knows for certain how high the world’s oceans will increase; but whatever the height, global warming will decrease the amount of land available for human use. This will decrease the amount of farmland available, thus further decreasing the amount of food mankind can grow. Since a large percentage of the world’s population already does not grow enough food, this will cause mass starvation. The sudden increase in population densities in smaller cities will cause severe sanitation, health-related, and law and order problems. Diseases will spread rapidly and crimes will be on a rise. Above all, food scarcity will be a regular phenomenon.
Furthermore, with the ice caps melting, the amount of sunlight reflected back into space will decrease thus increasing the temperature of the Earth even faster. Underneath these receding ice caps and glaciers is dead organic matter that when thawed with releases even more heat-trapping greenhouse gases (carbon emissions) into the environment. While all this time, humankind will continue to produce an ever-increasing amount of carbon emissions via pollution into the environment.
Eventually, global warming will melt enough of the polar ice to modify the world’s oceans in two ways. First, the oceans will start to desalinate, in other words, the salt in the seawater will be more diluted by the freshwater from the ice. Second, the oceans’ water temperature will drop because of the cold melting ice, and this will cause the oceans’ currents to change. Since the world’s ecosystem is regulated by the ocean’s currents, this will cause another ice age.
Global warming will start another ice age. Human civilization is not equipped to survive an ice age that will last a few years let alone a few thousand years. The world’s agriculture cannot sustain the world’s population during an ice age. This may even cause the extinction of mankind. The cycle of temperature increases is followed by ice ages, but this time the changes are not natural. These changes are caused by man-made greenhouse gases released into the environment. Therefore scientists believe that the next ice age will start much sooner than the scientific evidence has proven to have happened in the past.
On the contrary, to the above analysis, some believe global warming will result in little more than warmer winters and increased plant growth. They point to the flaws in scientists’ measurements, the complexity of the climate, and the uncertainty in the climate models used to predict climate change. They claim that attempting to lower greenhouse emissions may do more damage to the world economy and human society than any amount of global warming. However, in truth, the future probably fits somewhere between these two opposing scenarios.
How to slow down or stop global warming?
Coordinated efforts are needed to stop or slow down global warming. Every individual, institution and organization in the society has to take action according to the demands of their own situation. In general, experts believe that the following measures are effective in slowing down or stopping global warming:
- We should use as much renewable energy as possible, such as solar and wind power, to electrify our homes and factories. This will reduce the release of heat-trapping gas into the atmosphere.
- Burning fossil fuels is one of the main causes of global warming. So we can gradually increase the number of electric vehicles to reduce the burning of fossil fuels. We should also get used to using public transport instead of driving our own cars.
- Carbon dioxide emissions are a major cause of global warming. We can invest more in commercial services that reduce or address these emissions. Such as planting trees, and technologies that remove carbon from the air.
To control carbon dioxide emissions we can set a maximum amount internationally, which all countries will be obliged to implement within a certain time frame.
By taking these steps, we can protect the future of the planet and mankind from the inevitable dangers of global warming.
Read also: Water Pollution Short Essay & Paragraph
03
Essay on Global Warming: Causes, Effects, Prevention
By: Haque; Words: 850; 10-01-’22
What is Global Warming?
The gradual increase in the average temperature of the Earth’s atmosphere is called global warming. It is believed to be changing the climate of the world permanently. The environment is being damaged, natural disasters are increasing, and the earth is becoming increasingly difficult for human habitation. According to the graph of global temperature that we see in various scientific research papers, the average temperature has risen close to one degree in the last 100-150 years. Scientists claim that if the situation continues, the world’s biodiversity, including humans, will soon be destroyed.
Causes of Global Warming
There are many causes of global warming. The main reason is the increase in greenhouse gases which is the result of burning fossil fuels and deforestation. And the reason for deforestation is population growth. Because if the population increases, trees have to be cut down to collect timber for housing and to get out the cultivable land. Demand for more industries and vehicles rises. As a result, carbon emissions increase. The climate is also changing due to the explosion of atomic bombs, storms, earthquakes, environmental pollution etc. All of this is responsible for global warming as a whole.
Methane and carbon dioxide increase global warming. Mining for coal and oil releases methane into the atmosphere. Leaks from natural gas fields are an additional source of methane. Excessive deforestation increases carbon dioxide in the atmosphere and depletes oxygen, which in turn leads to an increase in the greenhouse effect. Nitrous oxide from fertilizers, refrigeration, and gases used in industrial processes are other factors that cannot be ignored as the cause of global warming.
Another source of methane is methane clathrate. It is a compound that holds a large amount of methane in the crystal structure of ice. The rate of global warming will increase significantly as methane escapes from the Arctic seabed.
Ice caps and glaciers reflect sunlight, and high-temperature sunlight returns to space far from Earth. When these ice caps melt, the Earth warms up because the dark oceans absorb a lot of thermal radiation from the sun.
When wood is burned, it releases carbon dioxide into the atmosphere, which raises the temperature.
Emissions of chlorofluorocarbons (CFCs) also indirectly increase global warming. Unlike carbon, it does not retain heat, but in the presence of ultraviolet rays, chlorine separates from CFCs and moves into the stratosphere. These unattached chlorines catalyze the depletion of the ozone layer by converting ozone molecules into oxygen molecules.
Effects of Global Warming
Global warming might cause an increased incidence of Lyme disease, dengue fever, and malaria because the mosquitoes that are the transmitting agents for these diseases require winter temperatures of about 18 degrees Celsius for their survival. The increased floods and damages to sewage and water infrastructures further encourage the spread of diseases.
The melting glaciers, polar ice caps, and other frozen grounds are causing and will continue to cause the rise in sea levels. This will result in flooding and displacement of the human population worldwide.
The freshwater polar ice caps melting into the salt-water oceans alter the ocean gulf- stream patterns causing major changes in the temperature pattern around the Earth. This changing environment and temperature in the polar region will endanger the flora and fauna and imbalance in the ecosystem.
The ozone layer keeps out the ultraviolet radiations from the sun that harms lives on the earth. Some human-made gases rise into the atmosphere and destroy the ozone layer. Therefore global warming involves the pollution of the atmosphere, which in turn leads to the depletion of the ozone layer.
Global warming will delay the ozone recovery in Arctic regions making these people to be exposed to an ultra-violet dose, which is relatively higher. The penetration of the more ultra-violet radiations from the sun to the earth poses threats to lives like skin cancer.
Prevention of Global Warming
The burning of wood should be reduced to a greater extent as it releases oxidizable carbon to the atmosphere whose presence in a greater amount causes the elevation of temperature. LPG stoves can replace the firewood burning. Biogas plants can be encouraged in village units. Composting will help you to dispose of biodegradable waste.
The use of CFCs is a major reason for the depletion of the ozone layer causing global warming. The discharges and exhaust from automobiles also cause global warming. We could reduce it by identifying fuel-efficient cars, using bio-fuels, correcting the engine design, or using an electric car.
By not wasting energy at home we can avoid to some extent the global warming. This includes shutting down the systems when not in usage and also buying energy-efficient equipment. Solar energy, wind energy, and hydroelectricity can be used that reduce the pollution of the atmosphere to a greater extent.
People should be reminded that they share the earth and its resources with the other species that keep the ecosystem balanced, if the balance is gone then the life of every single species is threatened and even humans will not be spared from this.
Planting trees is a very good start that can help dilute the carbon dioxide in the atmosphere. A single tree will absorb approximately one ton of carbon dioxide during its lifetime.
Take a look: 5 Paragraphs & Essays on Air Pollution
04
Essay on Global Warming & Greenhouse Effect in 500 Words
By: Haque | For class 9-12 | 01-04-’22
What is Greenhouse Effect?
The greenhouse effect is not a new phenomenon. Scientists have known for centuries that a layer of gas surrounds the world. This layer of gases envelopes the earth like an insulating blanket. It traps the reflected energy of the sun and prevents it from escaping into space. This level has been compared to The Greenhouse, considering the similarity of the action. The gases that make up this layer are called greenhouse gases. The greenhouse gases are mainly CO2 and CFC. Without the greenhouse gases, the world will be frozen and subsequently make it barren and lifeless.
Why Global Warming?
It has been found that recent human activities have boosted the concentrations of greenhouse gases and enhanced their heat-trapping ability. As a result, the world is becoming warmer day by day.
How the Greenhouse Works?
The greenhouse works in the following way—
- Â Solar energy enters the atmosphere and the sun’s rays are absorbed by the earth.
- The rays are then reflected back at longer heat wavelengths.
- Greenhouse gases absorb the heat and send it back to the surface.
- When the concentration of greenhouse gases increases, more heat is trapped, resulting in an increase in temperature in the lower atmosphere and at the surface.
The Root of the Problem:
Every day we produce a huge amount of carbon dioxide by burning fossil fuels (coal, oil, and gas) and by clearing and burning forests. This carbon dioxide accounts for nearly half of global warming. CFCs are also responsible for 25 percent of global warming. But it is an agreed fact that the pivotal cause of global warming is the burning of fossil fuels and deforestation. If the present conditions continue, global average temperatures could rise by two to four degrees centigrade and sea levels could rise by one foot by 2050.
Effect of Global Warming:
Consistent global warming is likely to cause severe consequences. Some of the effects of global warming have been described below—
- It will make weather around the world more erratic and more extreme.
- Overall temperature will rise. This increase will be more towards the poles than the equator and will cause the ice caps of the poles to melt.
- Overall rainfall will also increase as higher temperatures boost evaporation from the seas. But the distribution of precipitation will shift. Some areas will become wetter and some others will be drier.
- Tropical storms and droughts could both increase. The pattern of the monsoons may shift.
- Ocean levels will also rise because water expands as it warms. As a result, people living in coastal regions like New York, London, Jakarta, Dhaka, and Chittagong will be in danger.
Conclusion:
It is a good sign that people of this world are becoming environment conscious day by day. Many countries of the world have banned the use of CFC and have taken steps to cut down the emission of carbon-di-oxide. Nevertheless, we will have to be more serious about this problem. There are still many countries where the emission of greenhouse gases is still rising. So, everybody should be alert about global warming and try to stop the emission of greenhouse gases.
05
Global Warming Paragraph in 150 Words
Sentences: 11; Words: 150; For Class: 5, 6, 7.
The environment is an important part of human civilization. But for centuries, people have been poisoning the environment, spreading harmful waste and toxic gases. Thus nature is being choked. The temperature is rising. Animals are endangered. The key reason for the rise in temperature is the reaction of greenhouse gases. The inevitable consequence of global warming is the melting of polar ice caps and rising sea levels. It will submerge a large part of the earth under the sea. Global warming will cause frequent floods, droughts, salinity in the water, cyclones, storms, tidal surges, river erosion, disease, epidemics, disasters, and catastrophes. The way to get rid of this terrible consequence is for all the countries of the world to unite and adopt a scientific and effective strategy to mitigate climate change and prevent global warming. In this case, it is very important to innovate pollution-free technologies and use them properly.
Read also: Acid Rain Essay & Paragraph
06
Greenhouse Effect & Global Warming Paragraph in 250 Words
By: Haque; For Class: 9, 10, 11, 12; 23-01-’22
There is a layer of gas surrounding the world. This layer of gases envelopes the earth like an insulating blanket. It traps the reflected energy of the sun and prevents it from escaping into space. This layer has been compared with the greenhouse due to the likeness of action. The gases that make up this layer are called greenhouse gases. The greenhouse gases are mainly CO2 and CFC. Without the greenhouse gases, the world will be frozen and subsequently make it barren and lifeless. It has been found that recent human activities have boosted the concentrations of greenhouse gases and enhanced their heat-trapping ability. As a result, the earth is getting warmer day by day. Every day we produce a huge amount of carbon dioxide by burning fossil fuels (coal, oil, and gas) and by clearing and burning forests. This carbon dioxide accounts for nearly half of global warming. CFCs are also responsible for 25 percent of global warming. If the present situation continues there could be an average temperature increase between two and four degrees centigrade and the sea level may increase a foot by 2050. As a result, the weather around the world will be more erratic and more extreme. The overall temperature will rise causing the ice caps of the poles to melt. Tropical storms and droughts could both increase. The pattern of the monsoons may shift. Ocean levels will also rise because water expands as it warms. As a result, people living in coastal regions like New York, London, Jakarta, Dhaka, and Chittagong will be in danger.
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