Global Warming Exists

My opponent claims, “and the immense amount of C02 that is being realised into our atmosphere that is destroying the Ozone layer” however the green house effect, and the ozone depletion are two separate theories. The so called, green house effect is supposedly caused by CO2, while the ozone depletion is supposedly caused by CFCs. The Ozone (O3) is made up of Green House Gasses. According to a 4 year study by the UNEP and WMO, which ended in 2010, the hole in the Ozone Layer has stopped depleting. http://www.wmo.int... My opponent claims, “We are the reason that the Ozone layer is being destroyed.” This is false. One issue that has never been explained is why the hole is in the wrong hemisphere. The hole is in Antarctica, but the northern Hemisphere pumps out the most CFCs, because it is far more industrial compared to the mostly uninhabited southern hemisphere. Another issue is that CFC molecules, which are much heavier than air, are chemically stable, nontoxic, non-flammable, and nonexplosive. The ozone depletion theory contradicts the nature of CFCs, just as the green house effect contradicts the nature of CO2. Well the claim about CFCs is that they break down in the atmosphere, causing the chlorine molecules to wreck havoc on the ozone. Of course CFCs are chemically stable, and heavier than air. Air weighs 28.9645 g/mol Oxygen weighs 15.9994 g/mol CFCs weighs 43.0200 g/mol CO2weighs 44.0096 g/mol Volcanoes on the other hand pump millions of tons of chlorine into the atmosphere each year. In fact Mt. Erebus (the largest active volcano on earth), which is located in Antarctica, pumps more than 1,000 tons of chlorine a day into the atmosphere. If chlorine is even responsible for the ozone depletion, it would more likely be caused by Mt. Erebus, rather than CFCs. Elf Atochem (now Arkema) is one of the leading suppliers of CFC substitutes in the world. The company president said, “It is my understanding that the current theories are developed from modeling a series of chemical reactions that can neither be scientifically proven as occurring in the real world nor reproduced in a laboratory.” Arkema makes money on green alternatives to CFCs and they don’t even believe in the ozone scare. According to some Antarctic researchers the supposed hole was “most probably in existence at the time of the Shackleton expedition in 1909”, and that, “most probably, it is a natural phenomenon.” My opponent asked, “tell me why are the polar ice caps melting” Between 1960 and 1980, Fred Wood found through studying about 400 to 450 mountain glaciers worldwide, that “advancing glaciers are shown to have increased from about 6 percent of observed glaciers to 55 percent.” This contradicts the idea of the industrial revolution causing glaciers to retreat. The Greenland ice sheet (the largest glacier in the Northern Hemisphere) is actually growing in size rather than shrinking. Now back to CO2; Gas bubbles trapped in Antarctic ice tell us that the temperature dropped before the CO2 concentration changed, not after. Therefore CO2 is not the cause of the temperature flux. CO2 is not a pollutant, but rather a natural substance which is needed for life on earth. It is common knowledge that CO2 is essential for plant growth. Plants take in CO2, and fix it in the form of carbohydrates in their roots, stems, and leaves. CO2 in current concentrations is what is known as a "limiting nutrient": there is currently so little of it in the atmosphere that plants cannot get enough. Increasing the concentration of CO2 increases the growth of almost all plant species, and both laboratory and field experiments have demonstrated that plants flourish as CO2 concentration goes up. In reality oil companies could be considered “Green” because they help induce plant growth. My opponent said, “Studies show that in the last 100 years the earth’s average surface temperature has increased by 0.8 C (1.4 F)” However surface temperature is unreliable for tracking a global temperature fluxes; weather balloons or satellites are used for global readings, because surface readings are unreliable due to the heat island effect. The heat island effect is when things in the local environment have an impact on the temperature, such as asphalt, concrete, and steal. The heat island effect is why cities are hotter than the surrounding urban neighborhoods. This is also why atmospheric temperature readings from weather balloons and weather satellites both say that the earth is warming at a slow rate, while surface temperatures say it’s at a fast rate. In the medieval warming period the temperature was around 1.5 °F warmer than it is today, so assuming the highly inaccurate surface temperatures was right, we would have another 100 years till we would be as warm as we were during the medieval warming period. After the medieval warming period, we had what was known as a little ice age. According to NASA the little ice age lasted from 1550 AD to 1850 AD. NASA also mentioned that there were 3 particularly cold intervals: one beginning around 1650 AD, another around 1770 AD, and the last in 1850 AD, each cold period was separated by intervals of slight warming. One of the proposed causes of the little ice age was volcanic activity, which of course would contradict global warming theorist’s beliefs regarding CO2 and CFCs. http://www.youtube.com... http://www.youtube.com... http://www.youtube.com... http://www.youtube.com... http://www.youtube.com...