The Threat of Global Warming Through the eyes of most scientists, global warming is seen as a very serious and severe threat. The actions taken by humans, such as industry and consumption of fossil fuels plus the increase in population and agriculture have played a big part in global warming. If something is not done soon the results could be very bad. By the middle of the twenty first century, there is evidence that the Earth will be warmer than it has been at any time in human history, and quite possibly since the end of the dinosaurs, some 65 billion years ago. If we stay at the rate we are now (fossil fuel consumption / growth in population) then within the next two century the Earth's air might not be fit to breath.
Even worse, scientists from the IPCC (2014) forecast the temperature will be higher and higher in the future. The increase of greenhouse gas concentration happened nearly the same time as industrialisation through the 20th, when the worldwide human population started growing rapidly and farming also increased. Subjects of the stores and sources of these gases, both born and human induced, show than the main campaigns of the increasing concentrations are emissions from human actions (Australian Academy of Science, 2014). Human activities cause carbon dioxide input to the atmosphere from fossil fuel burning and deforestation. To this end, this report aims mainly to discuss the causes and effects of global warming and propound some suggestions to solve this issue.
With the rise in modern technology, the average temperature of the Earth’s surface has increased about 1.4 °F; two-thirds of which has arisen since the early 1980’s. Industrialized countries are major contributors to climate change, due in part to their involvement in deforestation and the burning of fossil fuels. These activities lead to an increase in levels of greenhouse gases, which scientists propose is the number one cause of global warming. The greenhouse effect is an example of external forcing: any process that has influence over climate, outside of the climate system. When infrared radiation is emitted and absorbed into the atmosphere, the greenhouse effect occurs.
Although CO2 is absorbed and emitted naturally through animal and plant respiration, volcanic eruptions, and ocean-atmosphere exchange, atmospheric CO2 emissions have increased nearly 40% from pre-industrial times. The increase is largely due to human activities that include the burning of fossil fuels and changes in land use that require deforestation (EPA). The effects of global climate change on the environment are very real and already observable. In the past, some of the things scientists had predicted that global climate change would cause were loss of sea ice, accelerated sea level rise and longer, more intense heat waves. We are witnessing those changes now.
Global warming has become a world wide issue and an issue that is causing great controversy. It is an increase in the earth's atmospheric and oceanic temperatures widely predicted to occur due to an increase in the greenhouse effect resulting especially from pollution (Dictionary). Global warming is a natural process, but because of increase in certain activities this process is taking a faster and more dangerous route creating global problems. Global warming was first theorized in 1894 by Jean Baptiste Joseph Fourier a French mathematician, who noticed the earth was gradually increasing in temperature. He came to the conclusion that the earth’s atmosphere was trapping solar radiation caused by the sun and reflecting this radiation back to earth (History of Global Warming).
Earth has its cooling and heating periods. But scientist fear that the heating periods are happening faster than usual to because of the manmade emissions. There are natural causes that cause climate change but the increase in emissions from man made products has increased climate change drastically than it’s usual because of our deforestation, burning of fossil fuels, and intensive farming.
Significant increase of carbon dioxide in the atmosphere is due to human activities combined with natural factors such as volcanic emissions and solar radiation – all together they lead to climate changes and temperatures rising. At the same time, other factors such as deforestation contribute to environmental changes for some glaciers not less than air pollution. However, during global warming not all regions of the planet are affected in the same way, local warming and cooling are both possible during these changes. First, during the last few decades the Earth is experiencing greater rate of rising temperatures due to greenhouse gases that are being produced by human activities rather than because of environmental reasons, such as solar or volcanic activities. In 2006 the President of the National Academy of Sciences stated: “There is no doubt that the Earth is warming,” also he added that people are at least partly responsible for these changes in addition to regular factors (Cicerone, par.4).
As the world becomes more urbanized the more the crisis of Global Warming increases. One major component to the increase in global warming is due to the ever-growing amount of CO2 that countries are using. ”These major companies and factories are burning fossil fuels such as coil, oil, petroleum, and natural gas that all contain carbon. These gases are called fossil fuels because natural processes including buried dead organisms form them; remains of vegetation and the remains of many dead animas buried underground. When carbons from these fuels are burned it mixes with oxygen in the air and creates carbon dioxide.
The global warming and cooling periods throughout Earth’s history are undeniable facts. However, the most recent global warming trend is the result of humans increased use and burning of hydrocarbons. Our continued dependence on hydrocarbons releases massive amounts of carbon dioxide and methane into the atmosphere and increases the heat-trapping attribute of the greenhouse gas effect. Even though measures to reduce greenhouse gas emissions have been taken, it may be too late. Human activities have already damaged the atmosphere and may lead to our destruction.
The gases are emitted mainly by cars, power plants, and other industrial sources that burn gasoline, coal, and other fossil fuels. Obviously, the emissions of these greenhouse gases in excess are leading to the planet’s consistent increase in temperature. For example, in a study conducted by the National Center for Atmospheric Research, it was confirmed that earth’s early century warming was caused by mostly solar and volcanic forcing, and the late century warming, from 1940-2000, was mostly caused by the increase of greenhouse gases. The National Resource Defense Council states, if global warming persists, there will be more air pollution and problems with water supplies as precipitation patterns change, as well as huge threats to ecosystems from the Everglades to the glaciers. Not only will there be hotter, longer heat waves and more intense storm systems, but also forests, farms and cities will face troublesome new pests and more mosquito-borne diseases.