Here's a link to a graph of global sea ice area over the past 30 years. (jennifermarohasy.com)
In early 2017, the Arctic, Antarctic and Global Sea Ice Area Extent were each at the lowest level in the data set. (climatechangefacts.info)
pdf cited by Will ««Observed global sea ice area, defined here as a sum of N. Hemisphere and S. Hemisphere sea ice areas, is near or slightly lower than those observed in late 1979.» (blogs.discovermagazine.com)