Humans are the main cause of global warming

My opponent posts a very convincing graph to his argument, until you look at it closer, you find that there is about a 1000-year lag that shows CO2 pratically a millenium behind temperature. ". .. the CO2 changes have lagged about 800 years behind the temperuatre changes. Global warming has produced more CO2, rather than more CO2 producing global warming. "[1] My opponent uses an extremely zoomed out graph, making it hard to see this. However, I will make it easier for everyone and show the last 11000 years of CO2 history: [2]"In fact, the air's CO2 content did not begin to rise until 400 to 1,000 years after the planet began to warm. Ice cores provide a detailed record of local temperature and CO2 concentrations. A study finds that the CO2 increase lagged Antarctic deglacial warming by 800 +/- 200 years. CO2 does not seem to be following that well. "[3]Then, my opponent claims that there has been warming from 1940-1970. However, two simple things will counter this. One, "In spite of rhetoric to the contrary, the majority of this warming took place naturally before 1940. This warming trend was interrupted by a 35-year cooling period from 1940 to 1975. "[4] And a graph: [5]As can be easily seen from the graph, there was a 0.2 C degree drop in global temperature anomalies from 1942 till 1977. The Rest of the Solar System I can happily post more evidence of this. Here are some solar system wide effects: Sun - "Recent Activity Highest in 8000 Years [meaning it's not just the 11-year cycle] and"magnetic field has decreased in size by 25% 300% increase in galactic dust entering solar system Mercury - magnetosphere experiencing significant increases Venus - 2500% Increase in Green Glow Mars - Rapid Appearance of Clouds, Ozone and"Up to 50% Erosion of Ice Features in one year alone Jupiter - Plasma Torus increasing and"Jupiter"s Disappearance of White Ovals since 1997 " recent increase in storms Io - "observing same changes -" 200% Increase in Density of Plasma Torus and Ionosphere 1000% Higher Europa - Much Brighter Than Expected Ganymede - 200% brighter Saturn's - Plasma Torus 1000% Denser and"Aurora First Seen in polar regions in recent years Uranus - featureless in 1996, now exhibiting huge storms since 1999 and markedly brighter in 2004 than in 1999 Neptune - 40% Brighter, Near Infrared Range " 1996 " 2002 Triton - Severe atmospheric changes, warming Pluto - 300% increase in atmospheric pressure. You can't be telling me all of this is a coincidence. Also, by the way, since CO2 does not correlate with temperatures, your Pluto-to-Earth claim is fallacious. "[6] So, there are also many other bodies being affected. Earthly Causes For my cosmic ray quote, you have to understand that there are many factors affecting the Earth's climate: ocean currents, climatic cycles, etc. .. However, it is easy to spot the correlation, isn't it? [3]There is a very good fit. Cosmic rays inversly correlate with temperature. In addition to this, [7]Cosmic rays inversly correlate with sunspots and low clouds (which both produce warming). Low clouds means warmer temperatures: "Cloud cover has decreased over the past 39 years globally, and temperatures have risen during that time. This global decrease in cloud cover alone could account for all surface warming observed since the 1970s. "[8]Putting this all together, "For example, the authors of a paper by NASA's JPL remark '. .. has compared the minimum aa [index of geomagnetic activity] values with the Earth's surface temperature record and found a correlation of 0.95 between the two data sets starting in 1885. The solar irradiance [solar activity] proxy developed from the aa minima continues to track the Earth's surface temperature until the present. '"[9]There. Cosmic rays, the sun, and all the Earth's natural cycles have a .95 correlation. For my PDO/AMO quote, I'm not sure what my opponent is trying to say and ask him to clarify. The Position In Galaxy and Cosmic RaysFirst, my opponent could have posted the entire quote. He only used ~3500 characters for his whole R3 argument with a 8000 character limit. Please post the whole thing and I will evaluate it in R5. Second, my opponent misinterprets my graph. I said earlier that the top chart was, "The lower panel shows the match achieved by removing El Nino, the North Atlantic Oscillation, volcanic aerosols and a linear trend of 0.14 Celsius/decade. " The bottom chart is the more useful (and more accurate) way to isolate cosmic rays, and lo and behold, there is a correlation for that time. As if I haven't posted enough to convince you of cosmic ray's effect on temperature, I will post one more graph: [10]Finally, I already refuted my opponent's last point. Medieval Warm Period There is ample evidence that the Medieval Warm Period and Holocene Climate Maximum were hotter than today:"Chinese temperatures were 2 to 3 degrees C higher than present during China's climate optimum. "". .. during the Medieval Warming. .. . Temperatures may have been as much as 2.5 degrees C warmer [than today] due to a southward shift of the climate belts. "". .. the central Argentinean area had more precipitation during the Medieval Warming than today. Temperatures may have been as much as 2.5 degrees C warmer due to a southward shift of the tropical rainbelts. ""The largest anomaly was a rapid warming-4 degrees C-between 350 B. C and A. D 450, reflecting a warmer climate in equatorial East Africa. ""On Signy Island, halfway between Antarctica and the southern tip of South America, there clearly shows the Roman Warming. .. , the Dark Ages [cooling]. .. , the Medieval Warming, the Little Ice Age, and the 20th century warming-which is cooler to date than the Medieval Warming. "[1]I will keep coming with more. There is a clear correlation. "Indirect evidence suggests that the average temperature was as much as 1.5 degrees Celsius warmer [during the Medieval Warm Period] than today. "[11]Also, a graph: [12]Clearly, there were many times warmer than today. The Sun First, solar activity is still increasing, even with the sunspots. It is a general trend up. Second, I already refuted the CO2 connection. I will post a some graphs to help visualize this: [13] Which one correlates better? [3] Longer term, here is a correlation of a solar proxy to a temperature proxy for a period of 3000 years. Values of carbon-14 (produced by cosmic rays, hence a proxy for solar activity) correlate extremely well with oxygen-18 (temperature proxy). The lower graph shows a particularly well-resolved time interval from 8,350 to 7,900 years BP. The above graph summarizes data obtained from a stalagmite from a cave in Oman. [3] Good correspondence between temperature and solar irradiance proxy reconstructions as shown on the graph above. Sources:[1]: Unstoppable Global Warming: Every1,500 Years. [2]: . http://wattsupwiththat.com... [3]: . http://members.shaw.ca... [4]: . http://www.thefreemanonline.org... [5]: . http://en.wikipedia.org...(NASA).svg [6]: . http://prof77.wordpress.com... [7]: . http://climatereview.net... [8]: . http://wattsupwiththat.com... [9]: . http://wattsupwiththat.com... [10]: . http://www.peakprosperity.com... [11]: Source 4. [12]: . http://tucsoncitizen.com...[13]: . http://www.outersite.org...