Another month has come and gone. Time to see where the sea ice is at for end of June. There is nothing much to say this month. The year 2025 has been its obstinate self during June, ending with the lowest end of month ice coverage of all years of the modern satellite era. Not by much of course, and the month has retained a positive average value over all years so far of the current decade. I have updated this in my spreadsheet shown further below. But first the daily data from NSIDC. I have shown only the five annual data lines for ’21-’25, plus the two most recent prior decade average lines, 2001-2010 and 2011-2020, for comparison. There is no reason to doubt, at this stage, that the current decade will match the previous one, or perhaps even show a slight improvement in Arctic ice retention, on average, by the time it ends in 2030. You realise by now, I hope, what that portends for modern climate theory.
During July, Summer then being in full swing, each recent year has seen an ice loss of around 3 million square Kilometres of sea ice cover, except for last year, 2024, where the loss was closer to 3.5 million. If that overall average holds for this year then we should expect an end of month value of about 6.2 million square Kilometres. Which will more or less break even with the 2011-2020 decade.
We will be struggling with narrow margins for the rest of the year, but I don’t foresee any major negative results ahead.
Not Something Else 
Leave a comment