claim: Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.
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: SUPPORTS SUPPORTS SUPPORTS
evidences.evidence_id: Arctic ice pack:26
evidences.article: Arctic ice pack
evidences.evidence: The September minimum ice extent trend for 1979–2011 declined by 12.0% per decade during 32 years.
evidences.votes: SUPPORTS SUPPORTS SUPPORTS
evidences.evidence_id: Arctic sea ice decline:17
evidences.article: Arctic sea ice decline
evidences.evidence: Observation with satellites show that Arctic sea ice area, extent, and volume have been in decline for a few decades.
evidences.votes: SUPPORTS SUPPORTS SUPPORTS
evidences.evidence_id: Arctic sea ice decline:20
evidences.article: Arctic sea ice decline
evidences.evidence: The amount of multi-year sea ice in the Arctic has declined considerably in recent decades.
evidences.votes: SUPPORTS SUPPORTS SUPPORTS
evidences.evidence_id: Arctic sea ice decline:33
evidences.article: Arctic sea ice decline
evidences.evidence: A 2018 study of the thickness of sea ice found a decrease of 66% or 2.0 m over the last six decades and a shift from permanent ice to largely seasonal ice cover.
evidences.votes: SUPPORTS SUPPORTS SUPPORTS