In sharp contrast with previous decades, the past 10 years have seen no change in Northern Hemisphere average sea ice extent, according to MASIE (may-zee, Multi-sensor Analyzed Sea Ice Extent) database from the National Sea & Ice Data Center (NSIDC; see figure 1).
Figure 1. MASIE sea-ice extent data for the Northern Hemisphere showing essentially no trend for Arctic sea-ice for the past 11 years.
Based on fundamental climate observations and research it has been proposed by several scientists that the Arctic might have entered a new regime with its most conspicuous consequence a reduction or even inversion of recent Arctic sea ice trends. So far, the data appears to support their interpretation. They are Miles et al. 2014, Wyatt & Curry 2014, and Årthun et al. 2017 (references in the appendix).
Last October I presented some of the evidence at WUWT here.
View original post 1,339 more words