Mankind Is the Main Cause of Global Warming

"On the rebuttals, apologies. I misworded the debate structure. It should be "no rebuttals by pro." Just present your arguments affirming the resolution. Thanks."As said by Con, I will present my argumentsThe typical argument is like this [1] The Earth's atmosphere keeps the planet much warmer than it would be without an atmosphere. The main gases which contribute to this are carbon dioxide, methane and water vapor. Collectively these are called greenhouse gases. The ability of these gases to act as greenhouse gases can be shown in a laboratory. The quantity of these greenhouse gases in the atmosphere has increased sharply since the Industrial Revolution, and their concentration continues to do so. The concentration of these gases has increased as a consequence of human activity. The temperature of Earth's atmosphere has been increasing and continues to increase. The increase in global temperature correlates with the increases of greenhouse gases. Just about every scientist agrees with these 7 premises. Even some skeptics do too and I believe Con does (although I could be wrong). The following premise is the disputed one8. The increase in temperature has been caused by the increase in greenhouse gases from humans.We know the climate on Earth has changed before. We must understand that in order for a climate to rise naturally, A forcing must exist to force the climate to change. There's no known forcing that fits the fingerprint of the evidence we see, except one, anthropogenic greenhouse gases.We know that humans are producing 30 billion tons of Co2 a year in the atmosphere [3]. Let's see evidence that follows from this.I will paste 6 evidences from “10 Indicators of a Human Fingerprint on Climate Change” [2]1. When we measure the type of carbon accumulating in the atmosphere, we observe more of the type of carbon that comes from fossil fuels [4]2. This is corroborated by measurements of oxygen in the atmosphere. Oxygen levels are falling in line with the amount of carbon dioxide rising, just as you'd expect from fossil fuel burning which takes oxygen out of the air to create carbon dioxide [5]3. So we know humans are raising CO2 levels. What's the effect? Satellites measure less heat escaping out to space, at the particular wavelengths that CO2 absorbs heat, thus finding "direct experimental evidence for a significant increase in the Earth's greenhouse effect". [6]4. If an increased greenhouse effect is causing global warming, we should see certain patterns in the warming. For example, the planet should warm faster at night than during the day. This is indeed being observed [7]5. With the lower atmosphere (the troposphere) warming and the upper atmosphere (the stratosphere) cooling, another consequence is the boundary between the troposphere and stratosphere, otherwise known as the tropopause, should rise as a consequence of greenhouse warming. This has been observed [8]. This also contradicts the hypothesis that the earth is warming because of solar activity.6. ....A closer look at the downward radiation finds more heat returning at CO2 wavelengths, leading to the conclusion that "this experimental data should effectively end the argument by skeptics that no experimental evidence exists for the connection between greenhouse gas increases in the atmosphere and global warming." [9] [10]The resolution is affirmed[1] From http://rationalwiki.org... all references for the premises are within that[2] http://www.skepticalscience.com...[3] http://www.ldeo.columbia.edu...[4] http://www.esrl.noaa.gov...[5] Ibid[6] http://www.nature.com...[7] http://www.knmi.nl...[8] http://www.math.nyu.edu...[9] http://ams.confex.com...[10] http://www.agu.org...