The Instigator
GKellerNHS
Pro (for)
Tied
0 Points
The Contender
jdelucaNHS
Con (against)
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Does global warming and climate change exist?

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Voting Style: Open Point System: 7 Point
Started: 10/16/2013 Category: Science
Updated: 3 years ago Status: Post Voting Period
Viewed: 2,041 times Debate No: 39042
Debate Rounds (5)
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GKellerNHS

Pro

Global warming and climate change exists. There is many scientific explanations and evidence of the changes in earth"s atmosphere. Scientists have proved that global warming and climate change is caused by the Greenhouse Effect and the amount of greenhouse gas molecules building up in the Earth"s atmosphere.
The Greenhouse Effected is a process, which causes Global Warming."The Earth's climate is fueled by the Sun. Most of the Sun's energy, called solar radiation, is absorbed by the Earth, but some is reflected back into space" ( "Global Warming and Climate Change"). The Greenhouse Effect starts when the sun"s solar rays hit Earth"s atmosphere and penetrate though to earth"s surface. These solar rays from the sun produce heat; the more rays that are in the earths atmosphere, the hotter the Earth"s atmosphere becomes. Next the solar rays bounce off the Earth and back out through the Earth"s atmosphere, back into space. However not all of the Sun"s rays bounce back into space. Some are absorbed by greenhouse gas molecules in the Earths atmosphere, blocking the rays from penetrating the atmosphere to escape. Therefore, when the rays are trapped in the Earth"s atmosphere, it causes the Earth become warmer.
Thinking of the earth"s atmosphere causing more solar rays to get trapped into the Earths atmosphere."Recent scientific evidence shows that the greenhouse effect is being increased by release of certain gases to the atmosphere that causes the Earth's temperature to rise. This is called "global warming."" ( "Global Warming and Climate Change"). The solar rays that are trapped into the atmosphere create extra heat into the atmosphere. Fossil Fuels such as oil and coal produce gases that become greenhouse gas molecules. These molecules prevent the solar rays from penetrating through the earth"s atmosphere. Due to the increase in greenhouse gases, such as CFC's and CO2, there has been an increase in the amount of solar rays trapped in the Earths atmosphere. As a result the earth becomes warmer, and global warming and climate change occurs.

Works Cited
"Global Warming and Climate Change". EPA. 2012.Web. 16 October 2013.
jdelucaNHS

Con

Global warming and climate change does indeed exist, but not for the reason that you say. Global warming occurs because it's the natural way of the world, and it has occured forever. If you look at history, there have been many times when the Earth has heated and cooled on it's own. This climate change we're expiriencing now is only the first one that modern humans had to expirience. When climate change was first diascovered, scientists argued that humans had an impact on it, but the numbers were so small that they disputed the calculations. If you look at a graph of climate change temperatures, you will see that, while they are at a record high right now, it's not that far ablove some of the highs that were seen long ago. With evidence like this, it would be strange to say that humans have had a significant impact on the global climate change.

Source:
http://www.planetseed.com...
Debate Round No. 1
GKellerNHS

Pro

Increases in greenhouse gases are caused by humans, and their increase in industrial creations. The major greenhouse gases that contribute to global warming and climate change are carbon dioxides, methane, nitrous oxide, sulphur hexa-flouride.
The increase in the major greenhouse gases, are found and produced by human sources by the advancements in the industrial era. Carbon dioxide is produced by the burning of carbon substances, such as coal, oil, and gas. Many human sources include, the burning of fossil fuels, land-use changes and cement production. Methane is twenty times more powerful than carbon dioxide, and can be found in fossil fuels, any agriculture, and waste dumps. Nitrous oxide can be found by human sources in, the burning of fossil fuels, fertilizers, and indusial processes. Sulphur hexa-flouride is not found naturally at all and is found in dielectric fluids, caused by humans. ("Hurricanes, Climate Change, and Global Warming: Part 2: Man-Made Climate Change"). After the industrial boom, there became an increase in industrial products and industries. This includes burning fossil fuels and increased industrial processes. Humans have been the case of the increased concentration of carbon dioxides, methane, nitrous oxide, sulphur hexa-flouride, which is adding to the cause of global warming and climate change.
Studies have shown that there has been an increase these major contributors of greenhouse gases during the industrial revolution, compared to the years prior to the industrial revolution. Before the industrial revolution, carbon dioxide in the atmosphere had a concentration of 279ppm (parts per million), while during the industrial revolution, in 1994, the concentration levels were 358ppm. As for methane, the pre-industrial concentration levels were 700ppb (parts per billion), and in 1994, the concentration increased to 1721ppb. Nitrous oxide in 1994 had an atmospheric concentration of 811ppb, while pre-industrial revolution, had a concentration of 275ppb. And sulphur hexa-flouride, does not occur in nature at all and did not exist in the atmosphere before the industrial revolution, and in 1994, 0.032ppb concentration in the Earth"s atmosphere. Carbon dioxide concentration increased by 30% between pre-industrial revolution and 1994, while methane increased drastically by 240%, and nitrous oxide increasing by 15%. ("Hurricanes, Climate Change, and Global Warming: Part 2: Man-Made Climate Change"). The gases, carbon dioxides, methane, nitrous oxide, sulphur hexa-flouride, contribute to the thickening of the atmosphere and causing more solar rays getting trapped into the Earth"s atmosphere. Since the industrial revolution there has been an increase in these gases, compared to before the industrial revolution there were little concentrations of these gases in the Earth"s atmosphere, allowing the solar rays to escape easier from the atmosphere.

Works Cited
"Hurricanes, Climate Change, and Global Warming: Part 2: Man-Made Climate Change". From A world to Win News Service. 2006. Web. 21 October 2013.
jdelucaNHS

Con

jdelucaNHS forfeited this round.
Debate Round No. 2
GKellerNHS

Pro

There is much evidence that has been proven and links humans to global warming. Much of this evidence is observed in nature, such as the glaciers and polar ice caps melting, as well as global sea-level rising.
Polar Ice caps and glaciers melting is evidence of global warming and climate change. Due to global warming, the Earth"s atmosphere"s climate continues to get warmer. The Earths poles are dramatically affected by the warming of the planet. On average the glaciers in Columbia Glacier, in Alaska, has retreated 1.9 miles since October 5, 2007 to May 7, 2009. Observing the Illulissat Glacier, in Greenland, scientists have concluded that the glacial retreat had more than doubled in the past several years to the rate 125 feet per day. On May 28, 2008, the largest video of a glacial brake was recorded in 75 minuets. The Illulissat Glacier, in Greenland, had had a piece of the glacier 1 mile long, 3 miles wide, and 3/5th of a mile deep. To give an idea, 3,000 U.S Capital Buildings would make up the size of the glacial brake. ( Balog). In the last several years since industrialization has increase world-wide, greenhouse gasses have been warming the planet, causing Global warming and climate change. One effect can be observed though the Earth"s glacial ice to melt.
As Polar ice caps melt we can observe the effect of the rising sea-leaves.The Inter-governmental Panel on Climate Change (IPCC), suggested that on average in the last 100 years, global sea-leaves have risen 4cm to 14cm. The IPCC also predicts that by the end of the 21st century, sea-levels will rise from 20cm to 88cm. If all of the Earth"s glaciers were to melt, the sea-level would rise 80.8 meters. If the glaciers melt, it is predicted that they will release 450 billion tons of greenhouse gasses, mainly carbon dioxide and an even more powerful gas, methane, into the atmosphere. This will cause the greenhouse effect to become much evident and have even more drastic effect on the Earth. ("Hurricanes, Climate Change, and Global Warming: Part 2: Man-Made Climate Change"). Scientists can observe that there has been a rise in sea-leaves. As the polar ice caps and glaciers melt the sea-leaves rise. Global warming and climate change has drastically changed the Earth"s environment, and though these changes we can observe that global warming and climate change is real and humans have increased the effects of global warming.
jdelucaNHS

Con

Be that as it may, climate change is not a new thing. For the entirety of earth's history, there has been climate change. It's mostly caused by the Earth's natural planitary cycles. One of these is the natural amount of CO2 in the atmosphere and another is the Earths natural change in temperature. The natural amount of CO2 in the atmosphere can vary from year to year, and this is what causes the warming effect. One very natural way that CO2 gets into the atmosphere is through volcanic eruption. Approximately 60 volcanoes erupt each year, and every few hundred years. Each of these eruptions lets tons and tons of CO2 into the atmosphere. Far more than a few cars do everyday. This causes the Earth to warm because of the greenhouse effect, and naturally rises the temperature of the Earth until the plants use up all of that CO2 and the temperature cools again. This leads to a very natural fluxuation in the temperature of the planet.

Souces:
http://www.nrdc.org...
http://www.ask.com...

Debate Round No. 3
GKellerNHS

Pro

GKellerNHS forfeited this round.
jdelucaNHS

Con

jdelucaNHS forfeited this round.
Debate Round No. 4
GKellerNHS

Pro

GKellerNHS forfeited this round.
jdelucaNHS

Con

jdelucaNHS forfeited this round.
Debate Round No. 5
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