• PRO

    9)(10) Climate shift is likely to cause these storms to...

    Climate shift

    I thank my opponent for accepting my debate. Pros Case Point A: Climate shift is real Sub point 1: Scientific consensus "Carbon dioxide and other global warming pollutants are collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Although local temperatures fluctuate naturally, over the past 50 years the average global temperature has increased at the fastest rate in recorded history. Scientists say that unless we curb the emissions that cause climate change, average U.S. temperatures could be 3 to 9 degrees higher by the end of the century." Scientists are undoubtedly sure that climate shift is indeed a real threat. As is corroborated by a collection of scholarly articles. 97% of climate scientists are in agreement.(1)(2)(3)(4)(5)(6)(7) Point B: Climate Shift is influenced by Humanity Sub point 1: Scientific Consensus "The United States Global Change Research Program (which includes the Department of Defense, NASA, National Science Foundation and other government agencies) has said that 'global warming is unequivocal and primarily human-induced' and that 'climate changes are underway in the United States and are projected to grow.'"(3) "The climate change denial machine has been working hard to discredit the latest UN Intergovernmental Panel on Climate Change (IPCC) report, which confirms that climate change is occurring and that human activity is primarily responsible."(5) "Ninety-seven percent of climate scientists agree that climate-warming trends over the past century are very likely due to human activities,and most of the leading scientific organizations worldwide have issued public statements endorsing this position."(6) Again this is a case of overwhelming scientific consensus. Sub point 2: Carbon Emissions are a major cause, and a product of humanity "The only way to explain the pattern [of climate shift] is to include the effect of greenhouse gases (GHGs) emitted by humans."(2) "Most climate scientists agree the main cause of the current global warming trend is human expansion of the "greenhouse effect" -- warming that results when the atmosphere traps heat radiating from Earth toward space. Certain gases in the atmosphere block heat from escaping. Long-lived gases, remaining semi-permanently in the atmosphere, which do not respond physically or chemically to changes in temperature are described as "forcing" climate change"(7) Scientists agree that humanity has altered the balance of greenhouse gases on the earth, which is a direct major cause of climate shift. Point C: Climate shift threatens the future, and is therefore a legitimate concern of those who care about the future of humanity. Global climate change leads to: -Increased temperatures -Changing landscapes -A higher number of droughts, fires, and floods -Endangered wildlife habitats -Rising sea levels -Greater damage from extreme storms -More heat-related illness and disease -Economic problems (4) Sub point 1: Climate shift encourages natural disaster "Hurricanes and other storms are likely to become stronger."(2) "Anthropogenic warming by the end of the 21st century will likely cause hurricanes globally to be more intense on average (by 2 to 11% according to model projections for an IPCC A1B scenario). This change would imply an even larger percentage increase in the destructive potential per storm, assuming no reduction in storm size."(8) With storms like sandy become more common and much stronger, Humans living in coastal regions face a very serious threat. Already hurricanes such as sandy and the recent Typhoon in the Philippines are costing billions of dollars in damages, and thousands of human lives. (9)(10) Climate shift is likely to cause these storms to become even more intense, therefore threatening to cost even more lives and money. These death counts and damage costs are not small, by any stretch of the imagination; with climate shift left unchecked, these counts will grow. Sub point 2: Rising sea levels/flooding "Sea levels are expected to rise between 7 and 23 inches (18 and 59 centimeters) by the end of the century, and continued melting at the poles could add between 4 and 8 inches (10 to 20 centimeters)."(2) "Floods and droughts will become more common. Rainfall in Ethiopia, where droughts are already common, could decline by 10 percent over the next 50 years."(2) As polar caps warm, ice caps are likely to melt and release water into the oceans and seas, causing the levels to rise. this could result in flooding in coastal cities, such as New Orleans, that are close to, at, or below sea level. Furthermore, climate shift could result in more intense cycles of flooding and drought in other areas of the world, such as Ethiopia. These are real threats to human lives. Flooding, like storms, has a very high cost of both money and, more importantly, human life. Sub point 3: Future effects of climate shift could significantly increase the hostility of the Earth environment. There are a myriad of effects that climate shift will have that will make the Earth environment, generally, more hostile. "Some diseases will spread, such as malaria carried by mosquitoes." (2) "Less fresh water will be available. If the Quelccaya ice cap in Peru continues to melt at its current rate, it will be gone by 2100, leaving thousands of people who rely on it for drinking water and electricity without a source of either." (2) "Below are some of the regional impacts of global change forecast by the IPCC: -North America: Decreasing snowpack in the western mountains; 5-20 percent increase in yields of rain-fed agriculture in some regions; increased frequency, intensity and duration of heat waves in cities that currently experience them. -Latin America: Gradual replacement of tropical forest by savannah in eastern Amazonia; risk of significant biodiversity loss through species extinction in many tropical areas; significant changes in water availability for human consumption, agriculture and energy generation. -Europe: Increased risk of inland flash floods; more frequent coastal flooding and increased erosion from storms and sea level rise; glacial retreat in mountainous areas; reduced snow cover and winter tourism; extensive species losses; reductions of crop productivity in southern Europe. -Africa: By 2020, between 75 and 250 million people are projected to be exposed to increased water stress; yields from rain-fed agriculture could be reduced by up to 50 percent in some regions by 2020; agricultural production, including access to food, may be severely compromised. -Asia: Freshwater availability projected to decrease in Central, South, East and Southeast Asia by the 2050s; coastal areas will be at risk due to increased flooding; death rate from disease associated with floods and droughts expected to rise in some regions."(11) Here are some charts to illustrate further effects. (11) Current Effects Future Effects Summary There is overwhelming evidence to prove that climate shift is indeed real and influenced greatly by humanity. Furthermore, the effects of climate shift are so massively detrimental that those who are concerned over the future of humanity ought to care greatly about the massive loss of life, cost of damage, and other miscellaneous undesirables that are consequences of climate shift. Sources 1. http://www.sciencemag.org... 2. http://environment.nationalgeographic.com... 3. http://www.nrdc.org... 4. http://www.mfpp.org... 5. http://www.edf.org... 6. http://climate.nasa.gov... 7. http://climate.nasa.gov... 8. http://www.gfdl.noaa.gov... 9. http://www.usatoday.com... 10. http://worldnews.nbcnews.com... 11. http://climate.nasa.gov...

    • https://www.debate.org/debates/Climate-shift/1/
  • PRO

    I would first recommend reading [The Green New...

    CMV: The Green New Deal distracts from climate change, by tying climate change to left-leaning policy/rhetoric. The bill seems designed to raise republican opposition, and is a disappointment/insulting for people who believe that climate change is the #1 issue of our lifetime.

    I would first recommend reading [The Green New Deal](https://www.congress.gov/116/bills/hres109/BILLS-116hres109ih.pdf) if you haven't already, its about 14 pages, with huge spacing (about 3-4 real pages). But to summarize the bill in my own words, the Green New Deal calls for essentially every democratic agenda to be passed into law(to include climate change). As a democrat, I agree with most of the agenda items(it's literally the democratic agenda), but there is something wrong with creating a bill like this. By tying together climate change, and a plethora of other issues, like equal protection and rights for illegal immigrants, government-run(?) healthcare for all, etc, it is ensuring intense opposition by non democrats. Since I do not believe any rational human being could read the bill, and think it would get bi partisan support, my view is that there was no real intention of ever getting the bill passed into law/policy. (Sure, the gender wage gap is important, so are Native American rights... But there's no need to make that stand on a climate change bill, and doing so is insulting to the Americans who want to see huge climate change initiatives as our national policy) **The abridged, loose, logical argument:** Premise 1) If you want a bill to get passed into law, when possible, you will write it in a bi partisan way. Premise 2) Climate change can be written in a Bi-Partisan way Premise 3) The Green New Deal was not written in a bi partisan way(or was written in a partisan way). Conclusion) The Green New Deal was not written to be passed into law. (And this disappoints me, because in my opinion, climate change is the #1 issue of my lifetime.) \_\_\_\_\_\_\_\_ Edit 1: I learned that the intent of the bill wasn't necessarily to pass something into law, but more of a political statement or some sort of rally cry. Not sure how I feel about that one or what changes, but its worth noting. (its a function of a specific type of house resolution) Edit 2: After reading some of these posts, I now realize that the Green New Deal is actually divisive within the democratic party, and received a (soft) "bipartisan" rejection in the senate. This seems to indicate the increased importance of having a specific targeted bill, as it seemed some senators did not want to go on record supporting it, because of what it said.

    • https://www.reddit.com/r/changemyview/comments/l9ssyl/cmv_the_green_new_deal_distracts_from_climate/
  • PRO

    So in essence, trees grown by corporations are not grown...

    Recycling paper is a good way to fight climate change.

    Recycling paper is a good way to fight climate change. I. The affirmative is wrong in that recycling decreases demand for paper. 1. The demand for paper is constantly rising as the population rises. 2. At worst, reycling would cause no more commercial forests to be planted (and these forests are not that good, as proven later). 3. Because it will end up balancing, recycling is not harming the environment, and this point of the affirmative's is null. II. Why recycling helps the environment. 1. To begin with, I will say that trees from naturally growing forests are important to the climate whereas those made by companies are not as beneficial. A. They are made quickly, as to maximize profit, require massive amounts of fertilizer, and will soon be cut down. They also do not manage carbon dioxide as well as other trees since their only purpose is to be made into paper. B. Because of this, they are only temporarily beneficial to the environment, whereas "virgin trees", or natural forests (or any forest that has been established for awhile) are far more beneficial. C. Because these forests will not be cut down, they continuously manage carbon dioxide levels. D. These trees also have spread their roots, and in doing so, can provide more managing of carbon dioxide. As well, this root system helps prevent erosion, and these forests generally have more biodiversity. So in essence, trees grown by corporations are not grown to help manage carbon dioxide, but to be made into paper. Trees that have been planted otherwise contribute more to the environment. 2. The earth's population is in a state of rapid expansion. This means the consumption of paper will continually rise, and, the amount of land needed for farming rise as well. A. This necessary increase in farming land will mean that more and more land efficiency will be required. B. Because much of this growth is less developed countries, there will not be companies planting trees (which obviously are not that useful to the environment anyway). C. Many native forests will be cut down, and this will increase climate change. 3. This can be prevented by encouraging recycling. A. The affirmative might object by saying that corporations for planting trees should be made, however... B. Recycling paper is cheaper than making new paper. C. These poorer countries would therefore it would be in that countries interests to recycle rather than to engage in a new commercial industry (which again, is not that beneficial in regulating carbon dioxide). D. Recycling will reduce the amount of native forests cut down (especially in developing countries), and in doing so will help fight climate change. III. Finally, it should be recognized that in reality, much of the current climate change is occurring in developing countries, not developed ones. The affirmative totally ignores the non-developed world which does not have these industries. So vote for me. My arguments make more sense, and do not ignore half the world (or even more) as the affirmative does.

    • https://www.debate.org/debates/Recycling-paper-is-a-good-way-to-fight-climate-change./1/
  • PRO

    Atmospheric Greenhouse Effects: A Review [3] CO2 does not...

    Anthropogenic Climate Change Exists

    I thank my opposition for accepting this debate. This discussion is about Climate Change Anomalies from the years 1900 to 2200 (see comments section), and whether they are anthropogenic. Anomalies are deviations from "schedule" weather cycles, and can include both hot and cold extremes, making "global warming" only half of this discussion. So, right off the bat, temperature anomalies began rising just after the year 1900 [1]. http://climate.nasa.gov...; /> As shown in the following chart [2], this corresponds closely with a recent rise in CO2 emissions. This chart shows that CO2 levels have always travelled in cycles, but broke their most recent scheduled downward cycle to reach their highest level in over 400,000 years. In a sense, one might say nature did half the work on CO2 and the human race took it from there. http://climate.nasa.gov...; /> Correllation is obviously not causation, but the mechanics that link CO2 to temperature have been well documented. Atmospheric Greenhouse Effects: A Review [3] CO2 does not deflect visible light, which is what originally makes it to the earth's surface. Upon reaching the earth's surface, visible light is partially absorbed by the earth or water, and partially reflected. The reflection process lowers its energy level, turning it into infrared light. CO2 deflects infrared light. So CO2's reflective properties for the earth are one-directional. Visible light pass downward unperturbed, but upward infrared is deflected downwards / sideways. This effectually increases the amount of light striking the surface of the planet, which at current greenhouse levels protects life from the freezing cold of space, and at future levels threatens to roast life - not to death, but to ecological disequilibrium. http://climate.nasa.gov...; /> Oceanic Greenhouse Effects: A Review The oceans currently absorb atmospheric CO2 and are undergoing a resulting drop in pH. They are also currently absorbing most of the extra heat from the sun, and therefore are experiencing a rise in temperature. Once they heat to a certain point, the oceans are expected to start releasing CO2 back into the atmosphere, which may include massive reserves that have been down there for millions of years. However, before the oceans can truly begin warming, the ice caps have to melt. http://arctic.atmos.uiuc.edu...; /> And as we can see here [4], though the ice caps have shown about a half-century lag behind the thinner, more responsive atmosphere, they are roughly 1 million square kilometers smaller than they ought to be, as of 2014. It appears that climate anomalies are closely associated with CO2 levels, that CO2 levels are primarily anthropogenic and will continue to be so until the next 'natural' CO2 spike roughly one hundred thousand years from now (chart 1), and that the greenhouse mechanisms behind all this are straightforward and established. 1. http://climate.nasa.gov... 2. http://climate.nasa.gov... 3. http://climate.nasa.gov... 4. http://arctic.atmos.uiuc.edu...

    • https://www.debate.org/debates/Anthropogenic-Climate-Change-Exists/1/
  • PRO

    If there are any stupid apes out there that believe in...

    Human caused climate change is total nonsense

    If there are any stupid apes out there that believe in human caused climate change, Then please step forward so that I can make a monkey out of you.

    • https://www.debate.org/debates/Human-caused-climate-change-is-total-nonsense/1/
  • PRO

    The Atlantic. ... In India, rainfall levels might...

    Consequences of geoengineering could be worse than climate change

    Graeme Wood. "Re-Engineering the Earth." The Atlantic. September 12th, 2010: "as with nearly every geo-engineering plan, there are substantial drawbacks to the gas-the-planet strategy. Opponents say it might produce acid rain and decimate plant and fish life. Perhaps more disturbing, it’s likely to trigger radical shifts in the The Atlantic. September 12th, 2010: "as with nearly every geo-engineering plan, there are substantial drawbacks to the gas-the-planet strategy. Opponents say it might produce acid rain and decimate plant and fish life. Perhaps more disturbing, it’s likely to trigger radical shifts in the climate that would hit the globe unevenly. 'Plausibly, 6 billion people would benefit and 1 billion would be hurt,' says Martin Bunzl, a Rutgers climate-change policy expert. The billion negatively affected would include many in Africa, who would, perversely, live in a climate even hotter and drier than before. In India, rainfall levels might severely decline; the monsoons rely on temperature differences between the Asian landmass and the ocean, and sulfur aerosols could diminish those differences substantially."

    • http://www.debatepedia.org/en/index.php/Debate:_Geoengineering
  • CON

    Blind Faith is you asking someone to believe you, and not...

    Anthropogenic global climate change.

    I have to start this final round off with thanking who's made this argument much easier. Had then President-Elect Trump not terrified climate change scientists into archiving the data that they had kept away from the public this final round wouldn't be as climactic[16]. I'm surprised that my opponent didn't use the time to incorporate changes that were starting to come out just as I was wrapping up the previous round. On February 4th retired NOAA Scientist Dr. John Bates came forward damning NOAA for it's failure to Archive data like study used to refute the 'pause' argument for the Paris Agreement[19]. By the 5th it made it to the House Science Committee[18]. Thomas Karl has since admitted to failing archive the information before publication, and the Editor-in-Chief of Science Magazine, Jeremy Berg, where the study was published has said: "Dr Bates raises some serious concerns. After the results of any appropriate investigations. We will consider our options. It could include retracting that paper." [17] How can a study be published as Peer Reviewed when the study was never archived before publication so that fellow NOAA scientists or the public could review it? Blind Faith is you asking someone to believe you, and not providing a way to verify it. My opponent seems to be under the misconception that Figure 4 supports his argument. He better hope that Figure 4 is wrong because the high temperature in 2012 is that same as the high temperature in 1936. The clear trend from 1936 to 1980, or possible 1996, would mean that as we increased CO2 temperature dropped, but then reversed course after that. That would be a contradiction and refute the CO2 argument. Without the weighting, Figure 4 doesn't say anything for either argument. It's odd for my opponent to accuse me of cherry picking the evaporation data in his defense, but not in his rebuttal of my argument. Perhaps he knows he failed to refute my claim, and realized that data proves my claim beyond all doubt. In his mind, it has to be a fallacy, and he just happened to pick Cherry Picking without proof of Cherry Picking. In spite of the referenced source the GHCN dataset from NOAA. In spite of the publicly available source code. In spite of the Evaporation Data labeled, All Station, and Year Round stations he insists I must be cherry picking data. The only reason for the two sets is that some stations are seasonal resulting in some confusing output in the later years of the graph. Both are still in sync before 2005. Even given that I openly admitted that the Evaporation Set alone might just be too small since we only measure evaporation near lakes and reservoirs. That's why Figure 2 exists which collaborates the data in the evaporation data. He refuses to attack the GHCN dataset because doing so would throughout his entire argument since NOAA bases all their climate change argument on it. He refuses to attack the methodology because it is sound. He is left only with a Cherry Picked, false, unsubstantiated claim of Cherry Picking. Where is a dataset more inclusive than the GHCN? Where is his counter evidence showing what data I missed? In the ultimate sense of irony, my opponent and I already agree. He is just drowning in cognitive dissonance making him unwilling to look at the data for himself. Man-Made Global Warming is the only Man-Made Myth here today. Thank you, and I urge you to vote and share this debate. [16] http://www.cnn.com... [17] http://www.dailymail.co.uk... [18] https://science.house.gov... [19] https://judithcurry.com...

    • https://www.debate.org/debates/Anthropogenic-global-climate-change./2/
  • CON

    http://www.heritage.org...) While some try to sweep this...

    The American government should take an active role in stopping climate change

    I would like to thank my opponent for a wonderful debate. There has been wonderful information and opinion shared by both sides and it has been enjoyable. That said, in all three of the rounds, I fail to see a direct connection between humans and global warming proven by my opponent. Without a direct connection, and surely without a direct cause, regulations are only going to funnel money from one big organization to another and not fix the problem. We cannot be expected to blindly throw money at a guess and hope things change. In addition to the lack of evidence directly linking global warming to humans, there is also no proof as to how these regulations will actually change anything in terms of climate. There have been numerous scare tactic comments followed by minimal solutions which may or may not fix a problem that may or may not exist. It has also not been shown to what extend regulations on the American people will have on the globe as a whole. In fact, the EPA have stated that if there is a 60% reduction in carbon-dioxide emissions by 2050, the global temperature will be reduced by 0.1 to 0.2 degrees Celsius by 2095. (http://www.heritage.org...) I can understand that any change in the right direction is a good thing but at what cost and for what result? This is nearly 100 years later and since the EPA has already admitted that they do not know how much of a role the environment plays on climate change, how many other factors could go in to altering these numbers. Also, the American economy is in a troubling time at the moment and a further burden on businesses will only increase the problem; all because there is a chance that the temperatures may reduce by .2 degrees in 85 years. This is simply too far fetched of a plan to cause enforcement of regulations. I continue to talk about these loose connections between global warming and humans because, even if my opponent may not personally agree, there are many well respected scientists who have not been involved in scandals stating that there is no link. In December of 2008, the US Senate Minority leader released a report which included 650 dissenting scientist refuting the EPA's Claims. As of April 2009, that number increased to over 700 scientist. The Intergovernmental Panel on Climate Change which the EPA relied heavily on in their conclusions only had 52 scientists; less than 1/13th of those opposed. (http://www.heritage.org...) While some try to sweep this decent under the rug in yet another scandalous act, there are some things which cannot be disputed. If the EPA has their way and is able to regulate CO2 output by the American people, it would be the most expansive and most expensive environmental regulation in history. In addition, it will let the EPA bypass the legislative process complete. In essence, the decisions of a few will drastically alter the lives of many; all for a change in the Earth's temperature too small to ever notice. (http://www.heritage.org...) The non profit group from the home state of my opponent, the Oregon Institute of Science and Medicine have started a petition against the adoption of regulations on the American businesses and public in the name of global warming. They have had over 31,000 American scientists sign this petition stating they have reviewed the research literature and found no link between humans and global weather changes. (http://www.oism.org...) In fact, the Intergovernmental Panel on Climate Change (IPCC) which was discussed earlier having a direct link on the EPA's conclusions have failed to prove a link between humans and global warming. The IPCC actually states, "The Earth's atmosphere-ocean dynamics is chaotic: its evolution is sensitive to small perturbations in initial conditions. The sensitivity limits our ability to predict the detailed evolution of weather; inevitable errors and uncertainties in the starting conditions of a weather forecast amplify through the forecast. As well as uncertainty in initial conditions, such predictions are also degraded by errors and uncertainties in our ability to represent accurately the significant climate process." (http://www.aproundtable.org...) So by their own admission, their researched is filled with errors and speculation. Over and over again, my opponent continually denies the the overwhelming data which shows there has yet to be a direct link proven between humans and global warming. If there was a direct link out there to be proven, why hasn't anyone done it yet; not just in America but across the world? A huge scandal took place involving the Climate Research Unit and it is simply dismissed by my opponent as he states, "I do not believe that it means anything". The EPA has explained they are uncertain as to the cause of global warming and how human involvement relates to climate change. My opponent responds by saying, "They're just not certain about how much humans contribute", as if that somehow makes it okay to impose regulations on Americans. If the EPA is uncertain as to what the human contributions are and if the EPA reports are under suspicion anyway, why would we put them in charge of regulating American businesses and lives? My opponent's defense to all this uncertainty around global warming and human cases of climate change is that, he wishes global warming did not exist, but it does. He continues to claim that, "The fact is, there is scientific evidence supporting climate change and the fact that it is caused at least significantly by humans". But he has failed to show this overwhelming evidence and has moved from the EPA's 'unknown' significance of human involvement to his new statement claiming human involvement actually being 'significant'; an unsubstantiated leap to say the least. While I give my opponent credit for commenting on most of the scandals and scientific reports disproving his case, I simply cannot agree that global warming exists because he says so. Those who blindly support global warming caused by humans continually write off these problems in their data as 'minor red herrings' but fail to show the actual connection. This debate, as many others, has tried to turn the table on who has the burden of proof. The side believing global warming is caused by humans still needs to prove and show a direct link between the human involvement and in what capacity. But what we have here is my opponent claiming, personally, that it not only exists and is caused by humans but any data which disproves this claim should be dismissed as minor speed bumps. My opponent makes a remarkably embellishment of the facts as he claims, "The fact is, any data or theories opposing the idea of climate change absolutely pale in comparison to all of the evidence and conclusions that climate change is a very real problem with very real consequences and very real ways to prevent it. It is ignorant and irresponsible to deny that." Does my opponent really expect us to believe that he has reviewed all the information offered on both sides of this debate to such an extent that he can numerically calculate which side has more evidence? It is scary, to me, that people make such vast generalizations. It is also scary, to all of us, when those such as my opponent talk about human habits equating to death. These general speculations and scare tactics do not translate into fact as shown above. Without absolute proof that human change will alter climate, there is absolutely no need for government to step in and alter our economic strength and way of life. I thank my opponent for starting this topic and for a great debate!

    • https://www.debate.org/debates/The-American-government-should-take-an-active-role-in-stopping-climate-change/1/
  • PRO

    for you would be incorrect. ......

    Taking a Stand Against Climate Change with Greener Technologies

    If you were born after February 1985, [1] you have never experienced a colder than average month. This, coupled with obvious decrease in Arctic, Antarctic, and Greenland ice sheets is a frightening sight. [2] It may seem obvious to most that this is a terrible thing, as sea levels rise and weather patterns change, we could be in a peck of trouble. However, there are always those who believe that Climate Change is just a hoax, thought up by Liberal politicians and science advocates. To them, I say, "Nay!" for you would be incorrect. In the last years, climate change is beginning to gain conclusive evidence to support it's existence. As the world becomes less of what it was a century ago, we must adopt new technologies and policies to save our Blue Planet and the beautiful life that exists on it (because, hey. No where else have we found life.). This is our home, and even if it means sacrificing a little of our hard-earned cash to save it, we must do everything we can. I await a wonderfully vivid debate! Thank you. 1]http://blogs.courier-journal.com... 2] http://www.nrdc.org...

  • CON

    In fact, there has been general, relative cooling: "If...

    That Humans Are Causing Climate Change

    I would like to thank CarterWale for presenting his arguments. The resolution is that humans have caused the modern climate change. However, most of my opponent's arguments either deals with the existence of global warming itself, or rules out (rather invalidly) other alternatives. He does very little to actually satisfy his burden of proof that humans are causing global warming. My arguments will be predicated on one simple assumption " that the vast majority of the claimed human impact is the result of greenhouse gas emissions. Humans Have Not Caused the Modern Global Warming There are many indicators that point to CO2 emissions not being the cause of the modern global warming. First, CO2 is actually a lagging indicator compared to temperature. As it turns out, temperature may be what's causing CO2 levels to rise. "The most recent study on this concluded that the results of their tedious but meticulous analysis led them to ultimately conclude that "the CO2 increase lagged Antarctic deglacial warming by 800 +/- 200 years." There is also shorter correlations, but again, temperature seems to cause CO2 rise instead of the reverse.[1] This graph shows just one of the lags: [1] Second, according to the greenhouse effect, global warming should be starting from the lower atmosphere and moving to the surface (because the CO2 collects in the upper troposphere first). However, this is not happening. "...satellite and high-altitude balloon data confirm that the lower atmosphere is not trapping lots of additional heat due to higher CO2 concentrations. It is hard to know how fast the Earth's highly variable surface is warming, but it is warming faster than the lower atmosphere where the CO2 is accumulating. This is strong evidence that CO2 is not the primary climate factor."[2] Here is a graph showing how the surface has warmed more than the troposphere: [1] (Blue line is lower troposphere temperature) Third, global warming is not starting at the poles like it should be, by the greenhouse theory. In fact, there has been general, relative cooling: "If the greenhouse theory were valid, temperatures in the Arctic and the Antarctic would have risen several degrees Celsius since 1940 due to the huge emissions of man-made CO2... Recently, a team led by the University of Chicago's Peter Doran published a paper in Nature saying, 'Although previous reports suggest recent continental warming, our spatial analysis of Antarctic meteorological data demonstrates a net cooling on the Antarctic continent between 1966 and 2000'. The data from 21 Antarctic surface stations show an average continental decline of 0.008 degrees C from 1978 to 1998, and the infrared data from satellites operating since 1979 show a decline of 0.42 degrees C per decade. David W. J. Thompson of Colorado State University and Susan Soloman of the National Oceanographic and Atmospheric Administration also report a cooling trend in the Antarctic interior. ... report that satellite imaging shows increases in Southern Ocean sea ice parameters from 1978 to 1996 and an increase in the length of the sea-ice season in the 1990s."[2] To illustrate, here is a picture of the southern hemisphere sea ice anomaly, which shows that southern sea ice is actually increasing: [3] Fourth, current levels of CO2 have very little effect on temperature. The greenhouse effect certainly exists, but it doesn't become linearly stronger with increasing amounts of CO2. CO2's effect on temperature is logarithmic, meaning that each additional increase has a smaller effect on the climate than the last. "The carbon that is already up in the atmosphere absorbs most of the light it can. CO2 only soaks up its favorite wavelengths of light and it's close to its saturation point. It manages to grab a bit more light from wavelengths that are close to its favorite bands but it can't do much more, because there are not many left-over photons at the right wavelengths."[1][4] This chart shows approximately the effect that each additional increment of CO2 increase has on temperature: [4] Note how the pre-industrial to modern level increase has had less than a 0.2 C increase in temperature. Fifth and most importantly, the predicted "hot-spot" 10 miles above the tropics that would be a signature of CO2-induced global warming is absent. "The computer models show that greenhouse warming will cause a hot-spot at an altitude between 8 and 12 km over the tropics between 30 N and 30 S. The temperature at this hot-spot is projected to increase at a rate of two to three times faster than at the surface. However, the Hadley Centre's real-world plot of radiosonde temperature observations shown below does not show the projected CO2 induced global warming hot-spot at all. The predicted hot-spot is entirely absent from the observational record. This shows that atmosphere warming theory programmed into climate models are wrong."[1] Here is the plot of predicted temperature changes due to CO2: However, here is the actual observed temperature changes: [1] The hot spot is completely missing, which is pretty much a knockout blow to the anthropogenic global warming theory. Even so, CO2 has not correlated well with the climate anyway. Throughout the past 600 million years, almost one-seventh of the age of the Earth, the mode of global surface temperatures was ~22C, even when carbon dioxide concentration peaked at 7000 ppmv, almost 20 times today's near-record-low concentration. Here is a graph showing CO2 concentrations versus temperature over the past 600 million years: [1] Note especially how high CO2 concentrations were earlier in Earth's history, reaching as high as 7000 ppmv. It was around 4500 ppmv during the very cold Ordovician era. Considering My Opponent's Arguments I was going to wait until the next round to consider his arguments, but after reading them, I thought I would discredit the majority of pro's arguments, as they aren't even worth arguing against. Arguments 1-3 are irrelevant - they don't show how human-emitted greenhouse gases have caused global warming. Argument 4 eliminates (rather invalidly) that the sun is not causing global warming " that still doesn't show that humans are causing global warming. Arguments 5 and 6 are relevant and I will consider them. Arguments 7 and 9-12 just show evidence for global warming " not anthropogenic global warming. Arguments 8, 13, and 14 will be considered. So essentially, only arguments 5, 6, 8, 13, and 14 are relevant to the resolution that pro made. All the rest either only prove global warming itself or demonstrate that humans have caused the increase in greenhouse gas concentrations, and so have no bearing on a debate considering anthropogenic global warming. I will consider those relevant arguments and those arguments only in the next round, along with any objections pro has to my own arguments. Sources [1]: http://www.friendsofscience.org... [2]: Singer, S. Fred, and Dennis T. Avery: Unstoppable Global Warming: Every 1,500 Years [3]: http://arctic.atmos.uiuc.edu... [4]: http://joannenova.com.au...

    • https://www.debate.org/debates/That-Humans-Are-Causing-Climate-Change/1/