chubbs

No your charts don't show that at all. First of all your article is advocacy, designed to mislead and not inform. Second not one of your charts show sea ice extent across the arctic or antarctic. Instead they are proxy measurements at a single site, which are designed to study historic climate not the present. I checked one of them, the Barents Sea proxy from Koseoglu. The measurements of marker compounds in a sediment core have a resolution of roughly once every 200 years, and the most recent measurement is deemed representative of the 1980-2010 average, so the data can not be used to compare current conditions, with reduced ice, to those in the past. Another paper states that the site experienced seasonal ice throughout the Holocene. Near the winter ice edge early in the early Holocene but with trend to more sustained ice coverage during the Holocene that has been partially reversed in the past 150 years. During the 1980-2010 period, typically the site was only ice free in August and September, but currently the site and the entire Barents Sea is still ice free. The ice edge in Spring/Winter has retreated close to the site in recent years, so conditions currently may be approaching those of the early Holocene. In any case your bolded statement is false for this one site.

Here is your bolded text " there is more extensive Arctic and Antarctic sea ice during recent decades than there has been for nearly all of the last 10,000 years. ". The chart I posted shows that sea ice is lower than any time in the past 2000 years. So your bolded text is clearly incorrect. You are talking about the early Holocene 10,000 years ago when the summer sun was much stronger in the northern hemisphere. Yes, sea ice was also low then when the sun was stronger, but I don't find it comforting given our current rapid downward trend. I

Nice try. Sea ice below is a 5-year mean.

You claimed the article was correct. Here is the headline "Arctic and Antarctic Sea Ice Now at Historic High Levels" Obviously the main objective of the article is to mislead.

OK

Here is the latest on antarctic sea ice and on ice sheet mass. I don't see much change in antarctic sea ice. More importantly Antarctic ice sheet losses are accelerating and now contribute significantly to sea level rise. https://www.nature.com/articles/s41586-018-0179-y

No that article is not correct. Its full of inaccurate and misleading statements. The article chart conveniently doesn't include the past 4 years with low sea ice - see chart below. There is no long-term trend in sea ice around Antarctica. Climate models predict very slow warming near Antarctica due to the time needed to heat up the deep oceans there. So the sea ice behavior there is not surprising. Of bigger concern is the ice sheet disintegration that is starting in Antarctica, due to ocean warming at depth, but you won't read about that at "electroverse".

June was cool in the arctic, NE Canada and Greenland but warm in Antarctica and Siberia. 3rd warmest June, 0.01 beyond #1 2016

A couple of comments: 1) One year in the arctic or antarctic is not very important. 2) GRACE data in graph is through 2017. See post above for papers on Greenland mass balance. 3) Regarding arctic sea ice, this year so far looks unremarkable to me. Its not a big melt year like 2012, but its not far from the long-term trendline on most metrics either. (see chart below) 4) There hasn't been any long-term trend in Antarctic sea ice so smack dab on the median is as expected. Ice shelves and ice sheets are the big concern in Antarctica, not sea ice.

Here is a chart from DMI which shows total mass change for Greenland by region reflecting both SMB and glacier discharge and iceberg calving. Biggest mass losses have been on the west coast which doesn't get as much precipitation as the east coast. Greenland SMB is up this year due to heavy precipitation, unusual compared to some recent big melt years, but not unexpected given natural variability.

Last Feb's SSW may be a factor in the benign melt so far this year. https://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-17-0495.1

Euro-reanalysis shows another arctic amplification winter with continental cold focused in Canada+Ntier US.

No point in reading, Delingpole is full of BS

CU just published first paper to detect acceleration in satellite record. http://sealevel.colorado.edu/content/climate-change–driven-accelerated-sea-level-rise-detected-altimeter-era

Here is another forecast using statistical methods. https://patricktbrown.org/2018/01/18/global-temperature-2018-likely-to-be-colder-than-2017-record-high-possible-in-2019/

To kick-off 2018, below is the recently issued UK Met Office Decadal forecast. Per write-up, PDO+ and AMO+ favor warming over the 5-year outlook period after a relatively cool 2018. Green is the CMIP5 predicted range. https://www.metoffice.gov.uk/research/climate/seasonal-to-decadal/long-range/decadal-fc

This year has been cool like 2013 so the volume and extent data are not inconsistent.

This year's low volume/high NSIDC area status is unusual. Looks like the mild winter is having some impact but is a weaker factor than a slow start to the Arctic Ocean melt season.

Yes, in August most melting is from water below the ice. Of course colder air cools the water also. Last season saw strong late season melting due to storminess even though temperatures were cool.

Interesting chart from Wipneus on the ASIF today showing the area of various ice thicknesses on July 22. 2017 lags in the thinnest categories but leads in the thicker. Wipneus notes that 0.26 on July 22 always melts and 0.71 sometimes melts in severe late summers. So a range of outcomes is still possible this year depending on weather.

This is a good summary. Every year is a roll of the dice but gradually the dice are being loaded. Recently winters have been the most problematic. Perhaps we will see some temporary sea ice rebound with reversion to more normal conditions this winter.

We are running below the trendline so can't give this prediction a gold star yet..

Just have to avoid unusually strong storms like 2012 or prolonged storminess like 2016.

July often reverses the June 500 mb tendency in the arctic with 2009+2015 being recent high height years in July and 2010+2012 relatively low.

That is my guess - there is less volume to lose late in the melt year. On a percentage basis, the volume anomaly is largest at the September low.