Claim: The divergence of tree-ring proxies from temperatures after 1960 is openly discussed in the peer-reviewed literature and the last two IPCC assessment reports.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: The implications of the decline are discussed in Chapter 2 of the IPCC Third Assessment Report, and in Chapter 6 of the 2007 IPCC Fourth Assessment Report (AR4) which describes discussion of various possible reasons for the divergence which does not affect all the trees, and says that there is no consensus about the cause.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: The issues with tree rings had not been hidden, but were extensively discussed in scientific literature and in IPCC reports.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Dendroclimatologist Keith Briffa's February 1998 study reporting a divergence problem affecting some tree ring proxies after 1960 warned that this problem had to be taken into account to avoid overestimating past temperatures.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The deviation of some tree ring proxy measurements from the instrumental record since the 1950s raises the question of the reliability of tree ring proxies in the period before the instrumental temperature record.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: This article refers to reports produced by the IPCC.

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: "Recent oppositely directed trends in solar climate forcings and the global mean surface air temperature" (PDF).

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The role of solar activity in climate change has also been calculated over longer time periods using "proxy" datasets, such as tree rings.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Globally, most climate models used by the IPCC in preparation of their third assessment in 2007 show a slightly greater warming at the TLT level than at the surface (0.03 °C/decade difference) for 1979–1999 while the GISS trend is +0.161 °C/decade for 1979 to 2012, the lower troposphere trends calculated from satellite data by UAH and RSS are +0.130 °C/decade and +0.206 °C/decade.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Evidence of past climate change and present climate change comes from a variety of sources.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Ljungqvist 2010 "A New Reconstruction of Temperature Variability in the Extra-Tropical Northern Hemisphere During the Last Two Millennia".