Global Warming Thesis

1306 Words 6 Pages
Global warming, the increase of Earth’s atmospheric temperature, and climate change, the long-term change in Earth’s climate, are enormous, controversial topics in today’s world. One possible cause of these two happenings -- human activity. This worldwide issue needs to be researched and focused on by the people. The long hot temperatures, excessive weather, and other abnormalities may be effects of global warming and climate change. In addition, if humans are to blame, all should know more about this occurrence; therefore, they can attempt to better their ways to avoid worsening the issue. Thesis…
Information about global warming traces back to the 1800s. Svante Arrhenius, a scientist from Sweden, hypothesized that burning fossil fuels adds
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They confirmed this to be a result of the refrigerants and aerosol sprays that humans use involving chlorofluorocarbons, or CFCs, which are no longer produced. (citation) Today, many more human faults that add to climate change and global warming have been discovered.
One significant way the people are causing this issue are greenhouse gases. Examples of these gases include carbon dioxide, methane, and nitrous oxide (citation). Carbon dioxide is the most important, as it accounts for eighty percent of total greenhouse gas emissions. Agreed on by scientists, the climate’s warming is essentially due to the abundant amount of carbon put into the atmosphere by humans (citation). This gas results from burning fossil fuels and brushland for agriculture, wood fires used for cooking, the cutting/burning of forests, and producing cement (citation). Almost one-third of the carbon pollution in the United States of America comes from motor vehicles, as well. According to the Environmental Defense Fund 2013, the current carbon dioxide levels are higher by forty-percent than the highest levels over than the past 80,000 years. (citation). Humans have produced
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One particularly noticeable consequence is the temperature variations happening recently. The Intergovernmental Panel on Climate Change (IPCC) has predicted the temperature will increase by two and one-half to ten degrees Fahrenheit over the upcoming century. In 2007, a report, also constructed by the IPCC, stated the increase of the globally averaged temperatures since the mid-20th century is “very likely” (with ninety percent certainty) from humans. Global warming caused by humans has been increasing and intensifying heatwaves and droughts. Research found from a 2015 study concludes that seventy-five percent of unusual, extremely hot days are from human-induced warming. (citation) Scientists have foreshadowed several future trends to occur because of global climate change. One trend they are ninety-nine percent certain of is the contraction of snow cover areas, more thawing in the permafrost region, and decreases in sea ice (citation). The rate at which these temperatures are rising cannot be explained by natural changes (citation). It has been found in a recent study that almost two-thirds of atmospheric and ocean temperature impacts can be traced to human factors (citation). As of 2014, thirteen and one-third percent of the Arctic sea ice has decreased per decade; the ice is estimated to no longer exist sometime between 2020-2060 (citation). In addition

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