claim: When all forcings are combined, they show good correlation to global temperature throughout the 20th century including the mid-century cooling period.
evidences.evidence_id: 20th century:6
evidences.article: 20th century
evidences.evidence: The average global temperature on Earth has increased by about 0.8° Celsius (1.4° Fahrenheit) since 1880; Two-thirds of the warming has occurred since 1975, at a rate of roughly 0.15-0.20 °C per decade.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Global warming:452
evidences.article: Global warming
evidences.evidence: IPCC AR4 WG1 Ch9 2007, p. 690: "Recent estimates indicate a relatively small combined effect of natural forcings on the global mean temperature evolution of the second half of the 20th century, with a small net cooling from the combined effects of solar and volcanic forcings."
evidences.votes: SUPPORTS SUPPORTS
evidences.evidence_id: Little Ice Age:14
evidences.article: Little Ice Age
evidences.evidence: The major differences between the various proxy reconstructions relate to the magnitude of past cool excursions, principally during the twelfth to fourteenth, seventeenth and nineteenth centuries.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Little Ice Age:165
evidences.article: Little Ice Age
evidences.evidence: There is still a very poor understanding of the correlation between low sunspot activity and cooling temperatures.
evidences.votes: REFUTES REFUTES
evidences.evidence_id: Solar activity and climate:90
evidences.article: Solar activity and climate
evidences.evidence: Stott's group found that combining these factors enabled them to closely simulate global temperature changes throughout the 20th century.
evidences.votes: SUPPORTS NOT_ENOUGH_INFO