The Instigator
discobabyangel1
Pro (for)
Tied
0 Points
The Contender
p3ngwyn56
Con (against)
Tied
0 Points

Global Warming is caused by humans

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Voting Style: Open Point System: 7 Point
Started: 12/2/2012 Category: Science
Updated: 4 years ago Status: Post Voting Period
Viewed: 1,072 times Debate No: 27698
Debate Rounds (3)
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discobabyangel1

Pro

First off, I would like to thank my opponent. Good luck.

I only have two points at the moment. So here they are:

(1) Earth's mean surface temperature has increased about 1.2 degrees Fahrenheit. Scientist are more than 90% certain that human activities' such as burning fossil fuels and deforestation, is the primary cause of increases of the greenhouse effect. The Intergovernmental Panel on Climate Change (IPCC) indicates that the global surface temperature is likely to rise a lowest of 2 to 5.2 degrees Fahrenheit and a highest of 4.5 to 11.5 degrees during the 21st century.

(2) According to NASA, human activities are changing the natural greenhouse. Over the last century the burning of fossil fuels like coal and oil have increased the concentration of atmospheric carbon dioxide (CO2)

Sites:
(1) en.wikipedia.org/wiki/Gobal_warming
(2) climate.nasa.gov/causes/
p3ngwyn56

Con

It's the sun! Evidence has surfaced that something potentially more dangerous is happening deep within the hidden core of our life-giving star: never-before-seen particles"or some mysterious force"is being shot out from the sun and it"s hitting Earth. Whatever it is, the evidence suggests it"s affecting all matter. Alarmed physicists first became aware of this threat over the past several years. Initially dismissed as an anomaly, now frantic scientists are shooting e-mails back and forth to colleagues across the world attempting to grasp exactly what is happening to the sun. Something impossible has happened. Yet the "impossible" has been proven to be true. Laboratories around the globe have confirmed that the rate of radioactive decay"once thought to be a constant and a bedrock of science"is no longer a constant. Something being emitted from the sun is interacting with matter in strange and unknown ways with the startling potential to dramatically change the nature of the very Earth itself. In fact, some evidence of time dilation has been gleaned from close observation of the decay rate. If particles interacting with the matter are not the cause"and matter is being affected by a new force of nature-then time itself may be speeding up and there"s no way to stop it. Since the sun"s core is known to blast out continuous streams of particles called neutrinos, some scientists are attempting to find evidence that neutrinos are the culprits behind the mutation of matter. It"s already been proven that the sun"s mass warps time, bends light waves and accounts for mutation of species on Earth. Now this new force may be directly interacting with matter in a way that could not only change Mankind"s understanding of physics, but change Mankind itself"and not necessarily in a beneficial way. Whether the phenomenon has no real impact on humanity, or the worst impact imaginable, nothing can be done to stop it. Once again, the titanic forces of nature rear up to overwhelm our technology"and we find ourselves like the playthings of gods. Utterly helpless.
Debate Round No. 1
discobabyangel1

Pro

NASA states that, changes in the brightness of the Sun can influence the climate from decade to decade, but an increase in solar output falls short as an explanation for recent warming. (1)

My argument:
(1) Volcanoes release very small amounts of carbon dioxide compared to human emissions.

(2) Not only have humans admitted carbon dioxide, but other greenhouse gases such as methane, nitrous oxide, and halocarbons, which are thickening the atmosphere. Thus causing heat to stay trapped close to the Earth's surface.

Sites:
(1) http://earthobservatory.nasa.gov...
(2) http://www.globalchange.gov...
p3ngwyn56

Con

Planetary warming has also been observed on Mars, Jupiter, Pluto, and on Neptune"s largest moon Triton during the decades following the peak of the "Solar Grand Maximum" " wonder why " there are no humans there! And Pluto is moving further from the sun in its orbit, thus it should be cooling, but instead it is warming. This is but one blatant indicator that suggests that the climate change on Earth is due to solar changes and our intersellar environment rather than mere human antics.

More importantly, the Sun is now changing from its Solar Grand Maximum to its Solar Grand Minimum. The Earth heats up after a Solar Grand Maximum, lagging a bit after the peak. With a Solar Grand Minimum now on its way, a "global cooling" may be on the horizon"a natural oscillation occurring in much longer solar cycles.

Latest science reveals that sharp increases in global warming "precede" sharp increases in CO2"not the other way around. Global warming causes more CO2 to be released form the oceans. Current research also shows that Earth"s oceans are now beginning to cool. It is also now clear that temperatures over the last century correlate far better with cycles in oceans than they do with carbon dioxide; and, the temperature cycles in oceans are caused by cycles of the sun.
Debate Round No. 2
discobabyangel1

Pro

Just because Pluto and other planets are warming, doesn't mean anything to the planet we live on today. You may be correct about the planets warming, but we are talking about Earth. There as, Earth's warming is caused by humans.

(1) Natural Geographic News states "Global warming is here, it's human-caused, and it will continue for centuries even if greenhouse-gas emissions are stabilized".

(2) "The first piece of evidence that the warming over the past few decades isn"t part of a natural cycle is how fast the change is happening. The biggest temperature swings our planet has experienced in the past million years are the ice ages. Based on a combination of paleoclimate data and models, scientists estimate that when ice ages have ended in the past, it has taken about 5,000 years for the planet to warm between 4 and 7 degrees Celsius. The warming of the past century"0.7 degrees Celsius"is roughly eight times faster than the ice-age-recovery warming on average.
The second reason that scientists think the current warming is not from natural influences is that, over the past century, scientists from all over the world have been collecting data on natural factors that influence climate"things like changes in the Sun"s brightness, major volcanic eruptions, and cycles such as El Ni"o and the Pacific Decadal Oscillation. These observations have failed to show any long-term changes that could fully account for the recent, rapid warming of Earth"s temperature." states NASA's earth observatory.

Therefore I conclude my argument. Thank you got being a good opponent.

Sites:
(1) http://news.nationalgeographic.com...
(2) http://earthobservatory.nasa.gov...
p3ngwyn56

Con

p3ngwyn56 forfeited this round.
Debate Round No. 3
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