Global Climatic Changes Essay

Energy, Cars and Farming are some of the largest forms of Greenhouse gas emission. They create a heated atmosphere that

Climate is inherently variable. Climate changes from place to place and it varies with time. The world now faces one of the complex and important issue it has ever had to deal with: climate change. Climate change today is one of the biggest concerns of human beings on the planet and the effects of climate change are undeniable and it may cause environmental, social, and economic threats to the planet. We already know and easily can highlight several signs of climate change. They are: rising global sea level, widespread melting of snow and ice, rapidly changing ocean and global temperatures, and other signs. So, what are the causes of climate change? Is it natural or do human beings cause it? Well, in both cases we would be right. The climate change can be affected by natural factors, such as solar output, volcanic eruptions, and the Earth’s orbit around the Sun. Also, climate change can be affected by human activities such as, deforestation, burning fossil fuels, causing ozone hole, and building mass destructive weapons and using them on earth that causes a huge radioactivity on earth. Currently, the threat of global climate change does not threaten some nations to the extent of others. Compare the United States with the rest of African countries. We live in prosperity and in much easier time than the rest African countries. Most African countries cannot grow anything on their lands because of climate change. At the end, climate change might affect everyone on

Since the Industrial Revolution, atmospheric concentrations of greenhouse gases such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) have been rising because of increasing emissions from human activities. The primary source of CO2 is the burning of fossil fuels such as coal, oil, and natural gas. CO2 is also produced by land use changes, including tropical deforestation. Agricultural activity and waste treatment are important sources of CH4 and N2O

In addition, human activities like deforestation may increase the amount of carbon dioxide in the atmosphere. This is because forests help in carbon sequestration, which reduces the amount of carbon dioxide in the air. It follows then that clearing such tress will increase the amount of carbon dioxide since carbon sequestration will not occur (3). The man-made theory of climate change also explains that when these harmful gasses reach the atmosphere, they form a blanket, which traps heat in the atmosphere. This trapping of in the atmosphere is the phenomenon that causes the planet to get warmer, hence the term global warming (Sharma, 4).

Why are greenhouse gas concentrations increasing? Scientists generally believe that the combustion of fossil fuels and other human activities are the primary reason for the increased concentration of carbon dioxide. Plant respiration and the decomposition of organic matter release more than 10 times the CO2 released by human activities; but these releases have generally been in balance during the centuries leading up to the industrial revolution with carbon dioxide absorbed by terrestrial vegetation and the oceans.

The three main greenhouse gases that contribute to climate change are methane, nitrous oxide, and carbon dioxide. Each of these is produced in varying degrees through animal agriculture. Different greenhouse gases have various effects on the earth 's warming. The effect of a particular greenhouse gas is measured through global warming potential which, according to the Environmental Protection Agency, is a quantity of how much energy one ton of a particular gas will absorb over 100 years in comparison to one ton of carbon dioxide. Because carbon dioxide goes through the carbon cycle, it is not destroyed. Instead, some carbon dioxide is absorbed quickly while some remains in the atmosphere for thousands of years (“Understanding Global Warming Potentials”). As a

Carbon dioxide concentration has increased by 40% since the pre-industrial times, largely from fossil fuel emissions and land use change emissions. Human intervention on the climate structure is unambiguous. Further emissions of greenhouse gases will cause further warming and changes in all components of the climate system. Most characteristics of climate change will continue for many centuries even if emissions are stopped totally at this point (IPCC 2013; Bondeau et al. 2013).

Human activities, such as the burning of fossil fuels and the conversion of land for forestry and agriculture. By their nonsense activities the land surface and emit various substances to the atmosphere. The leading product of fossil fuel combustion is carbon dioxide, a greenhouse gas. For these carbon dioxide, methane and nitrous oxide are increase.

Climate is the average condition of temperature, amount of water vapor in air that is humidity and rainfall that has persisted over years and centuries and millenniums. Does climate ever change? Yes! It had changed! Earth, when newly made, was hot and red! Eventually it cooled and biological life started. Then Ice age eclipsed whole of the Earth, with chilled winds blowing all over the place. Gradually, the climate again changed to normal. Then the question arises, “What is actually normal temperature?” It might be the range of level of mercury in which life can persist. The climate, therefore, has changed, starting from hot to normal to cold and then it began reversing

The study of the distribution of weather over periods of time is called climate change. This period of time may be more than a decade of length. To perform studies on climate change is very important for increasing yields and for insuring the crops for the farmers of the modern day. These studies were used historically too and have helped the agricultural community to grow crops over the same land decade after decade. At present the earth’s average temperature continues to increase. One reason for this is Global warming. There are many negative effects of global warming which include; icecaps melting, warming of the earth’s atmosphere. Human activities do contribute to climate changes in the Earth’s atmosphere in the amounts of aerosols, greenhouse gases, and cloudiness. The biggest known contribution comes from the burning of fossil fuels, which release carbon dioxide into the atmosphere. Human impacts on climate during our current era far exceed that due to the known changes in natural processes like volcanic eruptions and solar changes.

Long-term and meaningful changes in the average climate of a place, which range from several decades to hundreds of millions of years, is called climate change. Climate change is dependent on various controllers; Such as biological processes, changes in solar radiation passed by the Earth, plate tectonics plate tectonics, volcanic eruptions etc. However, in the present, from the social and political perspective, climate change refers to climate change due to the human activities of the world in the earliest times, known as global warming. As a result of climate change, changes in the atmosphere of the Earth's atmosphere, air pressure, wind, etc, and then thereafter have its impact on the earth surface. One example of this is the reduction of global glacier volume-increase with the increase in global temperature decrease.

Climate change could be described as any process that causes adjustment to climate system be it a volcanic eruption to a change in the solar activity. Today, however, the phrase is most often used as climate change caused by humans. Climate change is also used commonly with another phrase – "global warming" – reflecting scientific observations of strong warming trends over the past century or so. Indicators like rising sea levels, retreating snow cover and glaciers, longer growing seasons and shifting wildlife has alarmed scientific community unanimously agreeing that the earth has warmed in the last century. Experts however are of the opinion that climate change is a more accurate phrase than global warming as the latter is just one component affecting the larger climate systems of the earth.

- Deforestation - Cutting trees down, and cutting them will higher the level of carbon dioxide in the atmosphere because trees and other plants absorb carbon dioxide producing oxygen in return.

Climate change is a change in a Earth’s climate. It could be a change in a place’s usual temperature or a change in a how much rain a place usually gets in a year.

Carbon dioxide (CO2), is released through natural processes such as respiration and volcano eruptions and through human activities such as deforestation, land use changes, and burning fossil fuels. Humans have increased atmospheric CO2 concentration by more than a third since the Industrial Revolution began. This is the most important factor that produces climate change.