Global Warming Essay: Environmental Effects
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- Length: 1827 words (5.2 double-spaced pages)
- Rating: Excellent
The greenhouse effect and global warming are issues that are talked about by geologists
all the time. The greenhouse effect is a natural process that keeps the earth at temperatures that
are livable. Energy from the sun warms the earth when its heat rays are absorbed by greenhouse
gasses and become trapped in the atmosphere. Some of the most common greenhouse gasses are
water vapor, carbon dioxide, and methane. If there were no greenhouse gasses, very few rays
would be absorbed and the earth would be extremely cold. When too many rays are absorbed, the
earth?s atmosphere starts to warm, which leads to global warming. Global warming can lead to
many problems that affects the environment in which we live.
In order to talk about global warming, we must first learn what causes the greenhouse
effect. A lot of the rays from the sun are absorbed by water vapor that is naturally in our
atmosphere. Water vapor accounts for ?80 percent of natural greenhouse warming. The
remaining 20 percent is due to other gasses that are present in very small amounts? (Murck,
Skinner and Porter 488). Carbon dioxide is also a big absorber of the sun?s heat rays. Humans
can cause a lot of carbon dioxide to be released. Every time we burn fossil fuels, we release more
carbon dioxide. Emissions from cars also increase the amount of carbon dioxide in the
atmosphere. If there is more carbon dioxide in the atmosphere more rays from the sun are
absorbed. This will cause the atmosphere and the earth?s temperature to warm. The warming of
the earth will cause the oceans to become warmer. When they heat up, more water is evaporated,
causing more carbon dioxide to be released into the atmosphere. Once this process starts, it is
extremely hard to control. If the temperature keeps rising, more carbon dioxide will be released.
Another greenhouse gas is methane: ?Methane absorbs infrared radiation 25 times more
effectively than carbon dioxide, making it an important greenhouse gas despite its relatively low
concentration? (490). There have been many studies on how methane is released into the
atmosphere. Methane in the atmosphere is ?generated by biological activity related to rice
cultivation, leaks in domestic and industrial gaslines, and the digestive process of domestic
livestock, especially cattle? (490).
An environmental effect of global warming is the fact that higher temperatures will lead to
a change in the water cycle. Some places may experience more rain. Warmer temperatures will
cause a greater amount of evaporation from lakes, rivers, and oceans. In some areas this could be
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Environmental Effects Global Warming Carbon Dioxide Rays Greenhouse Effect Amounts
good, and in others it could be considered bad. In northern regions of the United States, an
increase in the temperature and amount of rain could actually extend the growing season of crops.
This would in turn mean more money for farmers in the northern region. It could also hurt some
farmers. Too much rain is bad for some crops. Certain areas will actually get less rain, which
would lead to more droughts and have a negative impact on crops. Warm and wet weather is
usually a factor that promotes tropical storms. Global warming would lead to tropical storms?
appearing with greater frequency. More rain will also force plant life to adjust. Forests and plant
life migrate naturally, but scientists say that global warming would cause them to migrate at a
much faster rate. If the climate changes the Intergovernmental Panel on Climate Change says,
?some forest species in North America will shift by as much as 300 miles to the north?
(www.pirg.org/enviro/global_w/fact.htm). If a region is getting more rain and plants on the
border of that region need rain to survive, they will naturally begin growing in the new region.
The Environmental Media Services Organization has found that the greenhouse effect
?could drive global temperatures up as much as 6 degrees by the year 2100 - an increase in heat
comparable to the 10 degree warming that ended the last ice age?
(www.ems.org/climate/sub2_html). If a ten degree warming was the factor that ended the ice
age, imagine what another warming by about that same amount could do. Scientists believe that a
warming of only 6 degrees would cause glaciers to melt at a high rate. This would cause an
increase in the level of the oceans. According to the article ?Turning up the Heat: How Global
Warming Threatens Life in the Sea,? coastal cities and islands would be in danger of flooding if
the ocean levels rose: ?Only a 1-cm rise in sea level can erode a full 1 meter of beach? (Berntson
and Mathews-Amos www.worldwildelife.org/news/pups/wwf_ocean.htm). Sea ice would also be
susceptible to melting, which would raise the water level even more.
Global warming will not just make sea levels rise, it will also affect sea life. Corals ?are
intolerant of temperatures just a few degrees warmer than usual? (ibid.). Small increases in the
temperature can kill corals. There have been problems with corals dying in the past few years
because of increased water temperatures. Other marine life may migrate northward or southward
because the waters are warmer. The warm water would make them think that they were in their
natural habitat, when they were actually migrating toward the poles. Food would be scarce in
their new habitat.
Patterns of the circulation of sea water are disturbed by global warming. Cold water
moves along the sea floor towards the equator and warm water around the equator moves toward
the poles across the surface of the ocean. It is known as thermohaline circulation. It is a very
important process concerning ocean life. This circulation process brings oxygenated water to the
sea floor. If this did not happen, ?water along the sea floor would become depleted of the oxygen
organisms need to survive? (ibid.).
Fish, such as salmon, are also sensitive to the temperature of the water. During the
summer when the water is warm, salmon have a higher metabolic rate. During the winter months,
their metabolism slows down, which is good because less food is available. With global warming
and increased water temperatures, salmon would have a higher metabolic rate, even if it were
during the winter. Less food would be available for them and many salmon would die.
Another impact of global warming will be that some diseases are likely to be spread more
easily. Mosquitoes are a major carrier of tropical diseases. They are commonly known for
carrying malaria, cholera, and dengue fever. Malaria outbreaks are usually confined to ?where the
minimum winter temperature reaches no lower than 16 [degrees Celsius],? according to the World
Wide Fund for Nature, an independent conservation organization
(www.panda.org/climate/climate_docs/health_factsheet/malria.htm). Scientists are beginning to
notice that malaria outbreaks are occurring outside these places. They are attributing this to
increased temperatures from global warming. Places such as California, Texas, Florida, Michigan,
and New York have had more cases of malaria. People from these states know that the summers
have been very hot and humid lately. Malaria mosquitoes thrive in hot and humid weather.
Increased temperatures and more rain in some areas will cause hot and humid weather, which will
allow for mosquitoes to migrate to new places and spread the disease. A study suggests that
?malaria transmission would increase from 45% of the globe to 60%, if atmospheric levels of
greenhouse gases reach concentrations equivalent to a doubling of CO2 since the industrial
revolution? (ibid.). Cholera and dengue fever are also carried by mosquitoes and thrive in warm
and moist climates. As with malaria, more cholera and dengue fever outbreaks would occur
because of migrating mosquitoes.
As stated earlier, the warming of the oceans will increase the amount of carbon dioxide in
the atmosphere and will make global warming a problem of increasing severity. There are other
ways that this happens too. As the weather becomes warmer, more organic matter in the ground
will be decomposed. This causes carbon dioxide to be released into the atmosphere: ?If average
temperatures would rise by .3 degrees C per decade, soils will release an amount of CO2 equal to
nearly 20 percent of the projected amount released by combustion of fossil fuels? (Murck, Skinner
and Porter 495 ). Gas hydrates will also decompose with warmer temperatures. Gas hydrates are
?icelike solids in which molecules of gas, mainly methane, are locked in the structure of water?
and are usually found in frozen soil or in ocean sediments (495). Scientists have found that ?gas
hydrates worldwide hold a total of 10,000 billion metric tons of carbon, twice the amount
contained in all the known coal, gas, and oil reserves on the land? (495). When temperatures
increase, frozen soil will melt and release gas hydrates, and hydrates from ocean sediment will also
break down. Because of this, more methane and carbon will be released into the atmosphere,
making the greenhouse effect even stronger. This will damage our environment even more.
Global warming is becoming a major problem as we move to the 21st century and beyond.
When more greenhouse gasses like carbon dioxide and methane are released, they trap heat rays
and keep them in our atmosphere. This causes an increase in temperature. Increases in
temperature can do a lot of damage, even in small increases. Only a few degrees ended the ice
age thousands of years ago. Another warming like that can have huge environmental effects.
Changes in temperature will upset water cycles. Some areas will get more precipitation, some
will get less. A warming of a few degrees would cause glaciers and sea ice to melt. This would
lead to ocean levels rising and would damage coastal cities and islands. It would also cause a
disruption in different species living in the ocean and increase the levels of some disease,
especially ones carried by mosquitoes, which thrive in warm climates. In order to stop global
warming, much has to be done. Although it is very difficult to reverse once the process is started,
global warming has to be stopped if we want to live like we are now. Emission of fossil fuels by
humans is a big factor in the amount of carbon dioxide in the atmosphere. Controlling these
emissions is one of the first of many steps that we must take in order to combat global warming.
If it is not controlled, problems such as the aforementioned ones, along with others, will definitely
disrupt our living patterns.
Berntson, Ewann, ?Turning up the Heat: How Global Warming Threatens Life in the Sea.? World
Wildelife Fund and the Marine Conservation Biology Institute. 20 Jan. 2000
Essay on Causes and Effects of Global Warming
Global warming as being a huge environmental issue, it has become very necessary to increase awareness about it among common public all over the world. Students in the school are generally get this topic to write some paragraphs or essay. We have provided some paragraphs and essays within different words limit in order to help students.
Global Warming Causes and Effects Essay 1 (100 words)
Global warming is a major concern nowadays because of the regular increasing temperature of the whole atmosphere. It is continuously becoming so powerful like a demon. There are many reasons for its ever increasing nature. The major cause of it is greenhouse gases like carbon dioxide, nitrous oxide, methane, chloro fluoro carbons, etc which are increasing in the environment mainly by the human activities. Some of are increasing number of automobiles, mushrooming industries, fossil fuels combustion, etc. Such activities emit more CO2 in the atmosphere which enhances global warmth of Earth. This increasing atmospheric temperature causes glaciers to melt, health disorders to occur and invites so many natural disasters.
Global Warming Causes and Effects Essay 2 (150 words)
As every one of us knows that couple of century, the climate on this planet was colder than now. And it is so surprising that even now it is not stable, it is increasing day by day. We are well aware and imagine its negative effects on our environment and body health. However, we are ignoring and continuing our bad habits which is flaming the global warming. Global warming is a constant process of increase in the annual temperature of whole planet. According to the statistics, it is recorded that in the last century the average increase in temperature is 0.7°C and sea level by 10 cm.
All the effects of the global warming (adverse effect on agriculture, floods, droughts, soil erosion, hurricanes, etc) are the huge indication of danger to our life. The main causes of the global warming are increasing human population, deforestation, increasing effects of green house gases, many careless human activities, etc.
Global Warming Causes and Effects Essay 3 (200 words)
There are many causes of the global warming which affects human lives and health in many aspects. The main cause of global warming is the human beings careless activities. Ever increasing human population are demanding more resources to live easy and healthy life such as land to live and crop cultivation, technological growth for comfort and deal with increasing temperature of atmosphere, etc. Fossil fuels burning for many reasons are highly responsible to increase global warming. People are realizing well the increase in environmental warmth however never mind their activities which are stimulating the global warming to increase. Continuously they are wasting natural resources and polluting the air, water and soil.
Increasing inventions of the technologies such as refrigerator, AC, car/automobiles, electric machines, oven, microwave, washing machine, etc because of the increasing need of human beings for technologies in order to make their life, easy and luxurious. All such resources ultimately contribute to the global warming. Burning fossil fuels in the automobiles emits various green house gases which get collected in the atmosphere and force it to heat. Increasing need of land by human being results deforestation which contributes to increase in CO2 and decrease in oxygen. It affects the human health, life style, calls diseases, calls natural disasters like hurricanes, heat waves, drought, climate change and so many.
Global Warming Causes and Effects Essay 4 (250 words)
Increase in environmental temperature and climate change has become very clear over the last 50 years because of increasing level of greenhouse gases concentration (like water vapour, CO2, methane, ozone, sulphur and nitrogen gases, etc ) in the atmosphere. Such as greenhouse gases contribute to increase in the greenhouse effect. The major cause of increasing greenhouse gas in the environment is burning of fossil fuels which emit carbon dioxide and heat the atmosphere. Such green house gases have capacity to absorb more heat from sun, heat from electricity used by human beings in many ways which in turn warm the whole atmosphere of this planet. The effects caused by the greenhouse gases (water vapour, CO2, methane, ozone, nitrous oxide, hydro fluorocarbons, sulphur hexafluoride, per fluorocarbons, chlorofluorocarbons, etc) are called as the green house effect.
Heating of the environment increases atmospheric temperature (by 3° to 5° C by the year 2100), increases sea level (by 25 meter by year 2100) and heat, melts glaciers, increases health disorders, changes climate, changes weather, increases annual power of hurricanes, calls natural disasters (floods, heat waves, droughts, tornadoes), lowers down amount and quality of agricultural yields, enhances glacial retreat, reduces summer stream flows, extinctions of various important plants and animals species and so many. There are some other dangerous effects of the global warming which continuously affects the lives of human beings, plants and animals. Global warming needs to be solved urgently by the active effort of each and every human being living on this planet.
Global Warming Causes and Effects Essay 5 (300 words)
Scientists and economists of many countries are working regularly in the field of global warming from many decades in order to figure out causes, effects, preventions measures, and solutions of it. In the last few decades, a huge level of change in the climate and weather has been seen clearly. It has disturbed the natural cycles and ecological balance in the atmosphere. The most important cause of increasing global warming is the effect of greenhouse gases which are emitted by human activities. In order to work together and solve this issue by the global effort, there is a group of scientists formed by the United Nations (Intergovernmental Panel on Climate Change or IPCC). This group works together to research the various causes, dangerous effects, effective prevention measures, and effective solutions.
According to the research and report of various highly skilled scientists, it is noted that ever increasing level of several greenhouse gases are highly responsible for warming of atmosphere. Combustion of fossil fuels by various means such as automobiles, cars, factories, electricity use, etc are responsible for emitting various green house gases like carbon dioxide, gases of sulphur and nitrogen, etc. Other contributors of the green house effect are methane (released by means of landfills, agriculture, digestive systems of grazing animals), nitrous oxide from various toxic fertilizers, gases released by means of refrigeration and industrial processes, loss of forests, etc.
The release of various toxic greenhouse gases in the atmosphere is increasing the atmospheric temperature as they have heat trapping abilities.
Methane gas molecules (20 times) and Nitrous oxide (300 times) have more ability to trap heat than CO2. In many countries the use of chlorofluorocarbons has been banned because they also have ability to degrade the ozone layer (a protective layer in the atmosphere) as well as high potential to trap heat thousands of times more than CO2. Other causes of global warming is deforestation which increases CO2 level, decreases oxygen level, drought, disturbs ecological balance, changes climate and changes weather patterns.
Global Warming Causes and Effects Essay 6 (400 words)
Global warming is increasing day by day because of the continuous increase in the levels of greenhouse gasses. Such gases have tendency to trap heat from many sources like sun, electricity, burning coal, burning fuels, etc and prevent them to escape back to the atmosphere. Thus, the collective effect of all the green house gases increases temperature on the earth and gives rise to many dangerous problems. Earlier, the earth was so cool and every natural cycles were going timely however nowadays lots of dramatic fluctuations in the weather, climate, temperature, health, etc takes place. A vast increase in the temperature, sea level, and weather patterns has been seen clearly in few last decades.
All the changes because of the ever increasing global warming are not a coincidence however it is caused by the human activities and technological advancement. A little fluctuation in the level atmospheric carbon dioxide may cause high level significant effect on the global temperature. The continuous rise in the percentage of atmospheric carbon dioxide is alarming us by its dangerous effects however we are still ignoring. Increasing need of fossil fuels (such as coal, oil, and gasoline) by the people of industrial civilization is giving the opportunity to rise in carbon dioxide emissions.
Deforestation is also causing increase in the carbon dioxide through decreasing number of plants and exposing soil to the sunlight. Trees are best source to absorb CO2 from the atmosphere however what happen if we finish the main source of reducing CO2 level. Our mal practices just to live luxurious life on daily basis are hugely altering the environment as well as endangering the lives of people in return. A little rise in the level of green house gases may hugely affect the global warming.
The use of a chemical called chlorofluorocarbon (CFC) in the refrigerators, aerosol spray propellants are continuously damaging the ozone layer thus increasing the chance of heat to remain on the earth by preventing them to escape back out to the environmental surface. Destruction of ozone layer increases the incidence of many health disorders and diseases such as skin cancer, respiratory disease, low immunity problems, etc. Global warming is damaging seasonal crops and marine food channel web, etc. It has affected the weather patterns (summer season has increased and winter season has decreased) and climate because of the increasing temperature and heat of the earth atmosphere.
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