Claim: "While major green house gas  H2O substantially warms the Earth, minor green house gases such as CO2  have little effect....

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Consequently, summers are 2.3 °C (4 °F) warmer in the Northern Hemisphere than in the Southern Hemisphere under similar conditions.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Increased concentrations of gases such as CO 2 (~20%), ozone and N 2O are external forcing on the other hand.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: She found moist air warmed more than dry air, and CO 2 warmed most, so she concluded higher levels of this in the past would have increased temperatures: Huddleston 2019.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: The surprising effect of this is that the global warming potential of CO is three times that of CO 2.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: "Rapid atmospheric CO 2 changes associated with the 8,200-years-B.P.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: By their percentage contribution to the greenhouse effect on Earth the four major gases are: water vapor, 36–70% carbon dioxide, 9–26% methane, 4–9% ozone, 3–7% It is not possible to assign a specific percentage to each gas because the absorption and emission bands of the gases overlap (hence the ranges given above).

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: In the 1998 paper, "CO2-induced global warming: a skeptic's view of potential climate change" Idso said: "Several of these cooling forces have individually been estimated to be of equivalent magnitude, but of opposite sign, to the typically predicted greenhouse effect of a doubling of the air’s CO2 content, which suggests to me that little net temperature change will ultimately result from the ongoing buildup of CO2 in Earth's atmosphere.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Some climate change denial groups say that because CO 2 is only a trace gas in the atmosphere (roughly 400ppm, or 0.04%, 4 parts per 10,000) it can only have a minor effect on the climate.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The primary greenhouse gases in Earth's atmosphere are water vapor (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ozone (O3).

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: On a 20-year timescale, a mass of methane is about 85 times more powerful than carbon dioxide at warming the Earth, but on a 100-year timescale, it is only about 28-34 times more powerful, because the carbon dioxide continues to warm the earth after the methane is gone.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: CO 2 absorbs and emits infrared radiation at wavelengths of 4.26 µm (asymmetric stretching vibrational mode) and 14.99 µm (bending vibrational mode) and consequently is a greenhouse gas that plays a significant role in influencing Earth's surface temperature through the greenhouse effect.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The large amount of CO2 in the atmosphere together with water vapour and sulfur dioxide create a strong greenhouse effect, trapping solar energy and raising the surface temperature to around 740 K (467 °C), hotter than any other planet in the Solar System, even that of Mercury despite being located farther out from the Sun and receiving only 25% of the solar energy (per unit area) Mercury does.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Earth's natural greenhouse effect makes life as we know it possible and carbon dioxide plays a significant role in providing for the relatively warm temperature that the planet enjoys.