Claim: CO2 is a greenhouse gas but is clearly subordinate to water vapour and other more significant factors determining global climate.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: While transparent to visible light, carbon dioxide is a greenhouse gas, absorbing and emitting infrared radiation at its two infrared-active vibrational frequencies (see the section "Structure and bonding" above).

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Increases in atmospheric concentrations of CO 2 and other long-lived greenhouse gases such as methane, nitrous oxide and ozone have correspondingly strengthened their absorption and emission of infrared radiation, causing the rise in average global temperature since the mid-20th century.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Carbon dioxide is a greenhouse gas that increases radiative forcing and contributes to global warming along with ocean acidification.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
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): 1
Passage: Being a component of Earth's hydrosphere and hydrologic cycle, it is particularly abundant in Earth's atmosphere where it is also a potent greenhouse gas along with other gases such as carbon dioxide and methane.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: After water vapour (concentrations of which humans have limited capacity to influence) carbon dioxide is the most abundant and stable greenhouse gas in the atmosphere (methane rapidly reacts to form water vapour and carbon dioxide).

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Carbon dioxide is the primary greenhouse gas that is contributing to recent climate change.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Carbon dioxide is the most significant long-lived greenhouse gas in Earth's atmosphere.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Water vapor, carbon dioxide, methane, nitrous oxide, and ozone are the primary greenhouse gases in the atmosphere.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Water vapor is the most abundant greenhouse gas and is the largest contributor to the natural greenhouse effect, despite having a short atmospheric lifetime (about 10 days).

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Greenhouse gas, a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range

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: That’s important because water vapor is a greenhouse gas just like carbon dioxide and methane.