Argument: "Global warming is occurring, because the glaciers are melting."
Truth: Statement is affirming the consequent.
Argument: "The amount of CO2 in air trapped in polar ice is a lot lower than the CO2 concentration today."
Truth: Ice is not a hermetic seal for CO2, which can diffuse through it by combining chemically with H2O to form H2CO3. This will especially happen if the ice is in contact with rock or sea water, for the H2CO3 will react with the minerals present to produce carbonates.
Argument: "If the ice on just the polar seas melted, it would raise sea level by 3 feet."
Truth: This totally ignores the physics of floating bodies. A floating body displaces its weight. A submerged body displaces its volume. But if the floating ice melted, it would still displace the same amount of water, because it is water. So the sea level does not change. On the other hand, ice sitting on LAND would raise the sea level if it melted.
Argument: Man is causing global warming.
Truth: If this is so, how is man causing global warming on Venus, Mars, and Europa?
Argument: The average temperature has increased 1/2 degree F since the 1700s.
Truth: The standards we use today were not defined accurately enough in the 1700s to make such a claim. They degree F was also changed in 1901 by an international treaty, so the old values must be adjusted.
Argument: Greenland …