Humans are the main cause of global warming

First, I will refute my opponent's arguments, and then I will defend my own. My opponent hasn't given any proof to his arguments. He shows that temperatures have increased, that CO2 concentrations have increased, and that the latter is caused by humans. However, he has failed to provide any correlation between CO2 and temperature; meaning that he has not proven how CO2 causes temperature increases. I will respond in more detail when my opponent posts fuller arguments, but I will make a small comment here:"In the last decade, there has been no clear warming trend (as the UK Met Office and IPCC’s own figures demonstrate). In the last century, much of the warming occurred prior to 1940, when human emissions of CO2 were relatively small compared to today. During the post-war economic boom (when one would have expected the temperature to rise) the world cooled, from the 1940s till the mid-70s (again, this is evident from accepted data used by the IPCC). "[1] [2]As shown, CO2 does not correlate with temperatures that well. I will now wait for my opponent to respond to his fallacy and my small argument. Now on to defending my arguments. I. The Universe and Global WarmingI. i. The rest of the Solar System I'll get to cosmic rays later for the Mars part, but my opponent has failed to respond to my second source on this. I'll post more:". .. it was noted the planet [Mars] was experiencing rapid warming, similar to what the Earth is currently undergoing. .. . The Martian icecaps are melting at a perilous pace. .. . . .. and that both [warmings on Earth and Mars] can be explained by changes in solar irradiance. "[3]"Global warming was detected on Jupiter last year, and the warming is apparently behind the formation of a second red spot. Global warming on Neptune's moon Triton has also been noted, with severe atmospheric changes as a result. And even tiny Pluto has experienced moderate warming in recent years, with temperatures rising a full 3.5 degrees. The common denominator in all these cases, the Earth included, is of course the Sun, which is in the middle of an extremely active period at present. "[3]So yes, all of these bodies are indeed warming, and it can all be attributed to increases in solar irradiance. I. ii. The Position of the Milky Way GalaxyMy opponent has also failed to adequately respond to this. Again, I will cover this in more detail when I get to cosmic rays. II. Earthly Causes II. i. Ocean Current Anomalies When examining the temperature and CO2 data, the correlation is striking. CO2 only correlates on a .44 scale (r = .44). This means the correlation rates from “fair” to “poor”, which is bad news for an alarmist. It shows the correlation is not very strong. The correlation between the two main ocean currents, PDO and AMO, is particularly striking. The correlation is .83, the paper argues the correlation is in the “good” range, showing promise for this factor in the modern warming. It also shows its R2 is stronger then the CO2 correlation by a factor of almost two. The scientific paper then examines data within the last ten years, the results? A CO2 correlation is no match at all. The correlation is only 0.02. (r = 0.02). If CO2 was the main driver of climate, then why isn’t the correlation higher in the past century, and so low within the last decade? [4][5]This can show the real correlation: [4]II. ii. Clouds My opponent has not responded to this argument. So, on cosmic rays, my opponent has not refuted the correlation between them, the fact that cosmic rays cause more cloud formation, or the fact that cosmic rays mean less solar radiation. He has dropped the whole argument. You can easily see the direct correlation between cosmic rays and temperature: "The graph below shows a correlation between the cosmic ray counts and the global troposphere temperature radiosonde data. The cosmic ray scale is inverted to correspond to increasing temperatures. High solar activity corresponds to low cosmic ray counts, reduced low cloud cover, and higher temperatures. The upper panel shows the troposphere temperatures in blue and the cosmic ray count in red. 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. "[2]. And the graph: [2]III. The 1500-Year CycleMy opponent has also failed to respond to this argument adequately. He first attacks the ISIL, even though they are a respectable organization, then he proceeds to take a quote from it out of context, and finally concludes with an irrelevant quote. If my opponent wants more information: "These are the Medieval Warm Period, which is well known, but also a period during the toga-wearing Roman times when temperatures were apparently 1 deg C warmer than now. "[6] This is backed up by tree ring research. "Indirect evidence suggests that the average temperature was as much as 1.5 degrees Celsius warmer than today. "[7]And another graph: [8] IV. The Sun My opponent yet again fails to respond to my argument. It is not refuted in his I. ii. Some more info on the topic:"Changes in the Sun can account for major climate changes on Earth for the past 300 years, including part of the recent surge of global warming, 300 years, including part of the recent surge of global warming"[9]And another graph showing sunspot count (the higher the sunspot count, the greater the solar activity) versus climate. Pretty good correlation: [8] I encourage my opponent to actually try and counter my arguments instead of committing logical fallacies and red herrings. I look forward to the next round with a sense of hope. Sources:[1]: . http://www.greatglobalwarmingswindle.com...[2]: . http://members.shaw.ca...[3]: . http://www.dailytech.com...[4]: . http://wattsupwiththat.com...[5]: D'Aleo, Joseph: US Temperatures and Climate factors since 1895. [6]: . http://www.dailymail.co.uk...[7]: . http://www.thefreemanonline.org...[8]: MacRae, Paul: Alarm: Global Warming - Facts versus Fears. [9]: . http://www.news.harvard.edu...