The Instigator
CodyNiskanen
Con (against)
The Contender
brinzahar
Pro (for)

Humans are responsible for global warming

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Voting Style: Open Point System: 7 Point
Started: 1/12/2017 Category: Science
Updated: 1 year ago Status: Debating Period
Viewed: 446 times Debate No: 98907
Debate Rounds (5)
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CodyNiskanen

Con

It's been said that humans are responsible for "Global Warming" due to our carbon emissions and high atmospheric pollution rate. While I agree that we are polluting the atmosphere at an extremely high rate, I disagree that, our carbon emissions are to blame. According to Science Magazine, measurements of ice core samples show that over the last four climactic cycles (past 240,000 years), periods of natural global warming preceded global increases in CO2. Also, A 2005 study published in Nature found that "high temperatures - similar to those observed in the twentieth century before 1990 - occurred around AD 1000 to 1100" in the Northern Hemisphere. Also, any human produced CO2 is re absorbed by the oceans, trees and plants, preventing the CO2 from gathering in the atmosphere.
I look forward to debating you, and good luck!!
brinzahar

Pro

I agree that carbon emissions have been rising before modern technology, but humans are the cause of it rising at such a rate as it is now. At this moment the best us (humans) can do to limit global warming we would still be at a two degree world temperature rise. This doesn't sound like much, but this large of a change can cause reefs to die (as they are already) and the ocean (water level) to rise and "swallow" coastal cities such as Florida, New York City, and parts of New Jersey. And this isn't just because of the CO2 emissions, but due to methane produced by beef cows that are used in so many foods, hamburgers, steaks, roast beef, etc.
Debate Round No. 1
CodyNiskanen

Con

First of all, thank you for accepting my debate. As for humans being the cause of the "rise" in carbon emissions, that is entirely false, due to the fact that as fast as we are putting CO2 into the atmosphere, trees and other plant based life are effectively weeding out the extra CO2 because they need it to survive, thus eliminating the excess waste. According to Murry Salby, " the usual evidence given for the rise in CO2 being man-made is mistaken. It""s usually taken to be the fact that as carbon dioxide concentrations in the atmosphere increase, the 1 per cent of CO2 that""s the heavier carbon isotope ratio c13 declines in proportion. Plants, which produced our coal and oil, prefer the lighter c12 isotope. Hence, it must be our gases that caused this relative decline. But that conclusion holds true only if there are no other sources of c12 increases which are not human caused. The huge increases in carbon dioxide concentrations caused by such things as spells of warming and El Ninos, which cause concentration levels to increase independently of human emissions. He suggests that its warmth which tends to produce more CO2, rather than vice versa - which, incidentally is the story of the past recoveries from ice ages."

Onto the next part of your argument, the rise of the oceans due to increased temperature and the melting of the polar ice caps. We are told sea level is rising and will soon swamp all of our cities. Everybody knows that the Pacific island of Tuvalu is sinking. Around 1990 it became obvious the local tide-gauge did not agree there was no evidence of 'sinking.' So scientists at Flinders University, Adelaide, set up new, modern, tide-gauges in 12 Pacific islands. Recently, the whole project was abandoned as there was no sign of a change in sea level at any of the 12 islands for the past 16 years. I also see that you mentioned the fact that the reefs are dying because of global warming and the rise of CO2 in the oceans. The oceans are the Earth's largest carbon storage medium, so if the atmospheric CO2 increase were "natural", it would likely be coming from the oceans. But we know the CO2 increase is not coming from the oceans, because the pH of the oceans is dropping (a.k.a. ocean acidification).

Now onto your final point, Methane from livestock. I agree that beef cattle release a ton of methane into the atmosphere, it's nowhere near the amount of Methane produced by bogs and swamps. Bogs and swamps produce Methane through the decomposition of biotic and abiotic matter, thus releasing the gas into the atmosphere. While I agree that cows are contributing to climate change, I don't hold them personally responsible for all of the Methane released into the air.
brinzahar

Pro

"As for humans being the cause of the "rise" in carbon emissions, that is entirely false, due to the fact that as fast as we are putting CO2 into the atmosphere, trees and other plant based life are effectively weeding out the extra CO2 because they need it to survive, thus eliminating the excess waste." My argument to this is that with the rising CO2 emissions, and with that comes more industrialization. The industrialization creates deforestation, this creates a larger problem for human based CO2 emissions. Also there is a limited amount of fossil fuels and it is believed we are going to be at the point of no return, we need to start using greener more effective ways of energy before this occurs.

Your second statement about growing ocean levels, though the land is not sinking the ocean rises. And for the reefs there is an abundance amount of scientific proof that agrees with my argument. The reefs die because of the rise in sea temperature making the algae in the reefs work too fast and it cannot repair itself, which emits the toxins that bleach coral reefs, this has a direct tie to global warming.

Swamps do produce methane just as cows do, but as population grows, swamps tend to be drained and used for housing and are slowly leaving the picture as a problem for global warming.

Importance of rainforrests for the earth (because of global warming): http://www.telegraph.co.uk...
Deforestation rates: http://rain-tree.com...
Limited fossil fuels: https://www.ecotricity.co.uk...
Sea Levels rising: http://climate.nasa.gov...
Reefs: http://news.nationalgeographic.com...
Bleaching: http://oceanservice.noaa.gov...
Swamps draining: http://wwf.panda.org...
Debate Round No. 2
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Debate Round No. 3
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Debate Round No. 5
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