Claim: Human-produced carbon might be one of the factors [of climate change], but there’s simply no evidence that it is a significant one.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: According to the United States National Research Council, [T]here is a strong, credible body of evidence, based on multiple lines of research, documenting that climate is changing and that these changes are in large part caused by human activities.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: European Science Foundation in a 2007 position paper states: There is now convincing evidence that since the industrial revolution, human activities, resulting in increasing concentrations of greenhouse gases have become a major agent of climate change ... On-going and increased efforts to mitigate climate change through reduction in greenhouse gases are therefore crucial.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Seventy-five of 77 believed that human activity is a significant factor in changing mean global temperatures.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: 7–10 "There is now convincing evidence that since the industrial revolution, human activities, resulting in increasing concentrations of greenhouse gases have become a major agent of climate change.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: While ‘climate change’ can be due to natural forces or human activity, there is now substantial evidence to indicate that human activity – and specifically increased greenhouse gas (GHGs) emissions – is a key factor in the pace and extent of global temperature increases.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Rennie 2009: "Claim 1: Anthropogenic CO2 can't be changing climate, because CO2 is only a trace gas in the atmosphere and the amount produced by humans is dwarfed by the amount from volcanoes and other natural sources.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The balance of evidence suggests a discernible human influence on global climate (considerable progress since the 1990 report in distinguishing between natural and anthropogenic influences on climate, because of: including aerosols; coupled models; pattern-based studies) Climate is expected to continue to change in the future (increasing realism of simulations increases confidence; important uncertainties remain but are taken into account in the range of model projections) There are still many uncertainties (estimates of future emissions and biogeochemical cycling; models; instrument data for model testing, assessment of variability, and detection studies) The Third Assessment Report (TAR) was completed in 2001 and consists of four reports, three of them from its Working Groups: Working Group I: The Scientific Basis Working Group II: Impacts, Adaptation and Vulnerability Working Group III: Mitigation Synthesis Report A number of the TAR's conclusions are given quantitative estimates of how probable it is that they are correct, e.g., greater than 66% probability of being correct.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: There is no convincing scientific evidence that human release of carbon dioxide, methane, or other greenhouse gases is causing or will, in the foreseeable future, cause catastrophic heating of the Earth's atmosphere and disruption of the Earth's climate.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Climate change can have an effect on the [[carbon cycle]] in an interactive "feedback" process .

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Singer argues, contrary to the scientific consensus on climate change, that there is no evidence that global warming is attributable to human-caused increases in atmospheric carbon dioxide, and that humanity would benefit if temperatures do rise.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: There are many facts that point to the existence of climate change.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Attribution of the temperature change to natural or anthropogenic (i.e., human-induced) factors is an important question: see global warming and attribution of recent climate change.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Anthropogenic climate change is caused by human activity, as opposed to changes in climate that may have resulted as part of Earth's natural processes.