claim: Arctic sea ice extent was lower in the past.
evidences.evidence_id: Arctic Ocean:122
evidences.article: Arctic Ocean
evidences.evidence: The mean extent of the ice has been decreasing since 1980 from the average winter value of 15,600,000 km2 (6,023,200 sq mi) at a rate of 3% per decade.
evidences.votes: REFUTES SUPPORTS REFUTES
evidences.evidence_id: Climate change in the Arctic:28
evidences.article: Climate change in the Arctic
evidences.evidence: The Arctic sea ice September minimum extent (i.e., area with at least 15% sea ice coverage) reached new record lows in 2002, 2005, 2007, and 2012.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS REFUTES
evidences.evidence_id: Polar ice cap:37
evidences.article: Polar ice cap
evidences.evidence: In August 2013, Arctic sea ice extent averaged 6.09m km2, which represents 1.13 million km2 below the 1981–2010 average for that month.
evidences.votes: REFUTES SUPPORTS REFUTES
evidences.evidence_id: Sea ice:117
evidences.article: Sea ice
evidences.evidence: In comparison to the extended record, the sea-ice extent in the polar region by September 2007 was only half the recorded mass that had been estimated to exist within the 1950–1970 period.
evidences.votes: REFUTES SUPPORTS REFUTES
evidences.evidence_id: Sea ice:118
evidences.article: Sea ice
evidences.evidence: Arctic sea ice extent ice hit an all-time low in September 2012, when the ice was determined to cover only 24% of the Arctic Ocean, offsetting the previous low of 29% in 2007.
evidences.votes: NOT_ENOUGH_INFO SUPPORTS REFUTES