Global Warming and Greenhouse gas emission are two different phenomenons, but they are very closely interrelated. Greenhouse gas emission causes global warming through a phenomenon called the Greenhouse Effect. Greenhouse produced due to human activities augments their naturally occurring quantities. These gases function as a shield over the surface of the earth, preventing the Sun’s reflected heat to escape back into the atmosphere, ultimately causing a rise in the earth’s surface temperature.
Long and Short Essay on Global Warming and Greenhouse Gas Emissions
Essay 1 (250 words)
Greenhouse gases are gases in the atmosphere causing a greenhouse effect which finally increases the heat in the earth’s atmosphere. Such gases are released in the atmosphere by various means and highly responsible for the continuously increasing temperature of the earth’s surface. Carbon dioxide (CO2) is a greenhouse gas emitted by both natural and human activities.
In 2012, it was recorded that around 82% of CO2 gas of all greenhouse gas emissions in the U.S. was from human activities. There is a natural carbon cycle in the atmosphere managing CO2 level however various human activities are altering this by adding more CO2 gas to the atmosphere by reducing natural sinks like forests. The emission of CO2 and other greenhouse gases have been increased in the atmosphere since the industrial revolution.
The most important human activity causing CO2 emission is the burning of fossil fuels, coal, oil, natural gas, etc for fulfilling the purpose of getting energy and transportation and other industrial processes. Generating electricity, transportation and industrial processes need the burning of fossil fuels. Various industrial processes like production of cement, metals (iron, steel, chemicals), etc require more fossil fuel combustion.
The maintenance of the natural carbon cycle is done by the continuous removal of CO2 through natural processes by microorganisms, animals, plants, etc. Plants are considered as the main source of consuming CO2 from the atmosphere however deforestation by the human being for urbanization or other purposes is reducing the number of plants and increasing the concentration of CO2.
Essay 2 (300 words)
Greenhouse gases are gases in the atmosphere trapping heat from various sources which ultimately causes the greenhouse effect. Some of the natural processes maintain the balance of greenhouse gases on the earth however a variety of human activities have already disturbed this balance in the atmosphere which has created global warming. Carbon dioxide gas naturally releases by many sources like human beings and animal respiration, burning fossil fuels, coals, oils, natural gases, solid wastes, wood, trees, etc.
However, the natural cycle of carbon maintains the level of CO2 gas in the environment. In the modern world of the technological and industrial revolution when people’s demand for comfort (electronic things, electricity, transportation, etc) is increasing day by day which ultimately needs to burn more fossil fuels, coal, oils, woods, etc to fulfill demands.
This process gives release to many gases causing the greenhouse effect of so-called greenhouse gases. They have the capability to absorb more heat from various sources in the atmosphere which finally causes an increase in the earth’s surface temperature. It disturbs the balance between nature and life on earth. Other greenhouse gases are like methane (released from production and transport of oil, coal, natural gases, livestock, agricultural practices, decay of organic wastes in the landfills, etc), nitrous oxide (emitted through agricultural and industrial activities, burning of fossil fuels and solid wastes), fluorinated gases (hydrochlorofluorocarbons, perfluorocarbons, chlorofluorocarbons, halons, hydrofluorocarbons, sulfur hexafluoride, etc) and many more.
Fluorinated gases are more powerful greenhouse gases having more capability to absorb heat. Such gases are released through a variety of industrial processes and hence are called High Global Warming Potential gases (or High GWP gases). A huge level of emissions of such gases lead to a higher concentration in the atmosphere (measured as parts per million, parts per billion, and parts per trillion) causing the climate to change, global warming, increased sea level, storm, thunder, cyclone, tsunami, etc.
Essay 3 (400 words)
Human activities are the main driver of increasing concentration of greenhouse gases in the atmosphere which is very dangerous as it makes global warming more powerful day by day. Both are hugely related to each other and affecting the natural balance on the earth including life on earth. A huge climate change was observed in the mid of the 20th century caused due to human activities. The increasing level of greenhouse gases in the atmosphere is the indicator of climate change and global warming. All the greenhouse gases through various human activities get collected to the atmosphere and warm the climate which ultimately leads to many changes around the world.
All the changes in the atmosphere have negative effects on animals, people, plants, society, and the environment. Greenhouse gases have the capability to stay for a long period of time (around tens to hundreds of years) in the atmosphere if once released by any mean and warm the climate by continuously absorbing the heat which persists over a long time and hence affects the present and future generations on the whole planet. Ever greenhouse gases have their own capability to affect the earth’s climate according to the length of time gases remain in the atmosphere. Each one has a unique ability to absorb the heat and energy of the atmosphere and cause global warming all over the world.
According to the statistics, it has been noted that the emission of total greenhouse gases in the United States was increased by 5 percent from 1990 to 2012; however, it is decreased by 10 percent in the last few years. A high level of electricity generation all across the world is considered as the main and largest source of greenhouse gas emissions and then through transportation. Net emission of the greenhouse gases worldwide because of the human activities was increased by 35 percent from the year 1990 to 2010 from which CO2 was alone three-fourths of total emissions.
The concentration of greenhouse gases especially carbon dioxide is increasing continuously since the beginning of the industrial era forcing the climate to change and disturbing the earth’s energy through the warming or cooling effect. The total warming effect of all greenhouse gases has been increased by 34 percent (27 percent of it is only because of carbon dioxide alone). Regular use of fossil fuels, oil, natural gases, coal, solid wastes, trees, wood products, organic wastes and deforestation, transportation and soil degradation is adding more CO2 to the atmosphere.