A Bonus In Record-Crushing EU Heatwave: Could Drive Record-Low Arctic Ice Down Even Faster

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Eventually, the high pressure area responsible for this heat wave is forecast to slide northeastward and park itself over Scandinavia and migrate north into the Arctic. As it does so, it could set records for the intensity of the high pressure area so far north at this time of year, and is likely to lead to heat records in Sweden, Norway, and Finland.

Right now, Arctic sea ice extent is at the lowest level on record for this time of year. Weather conditions during the Arctic melt season are a crucial factor in determining whether ice extent hits a record low in September or just misses it, as the past few seasons have done.

A heat dome over the Arctic, following unusually mild conditions throughout much of the Arctic Ocean during the melt season so far, could ensure a new and ominous record will be set this year.

All weather is now occurring in an atmosphere that has been substantially altered by human activities, particularly the addition of large quantities of carbon dioxide, methane and other greenhouse gases from burning fossil fuels and land use change. This has caused global average temperatures to increase by about 1.8 degrees since around the dawn of the industrial revolution, and in fact, 2019 is on its way to being one of the top 5 hottest years since instrument records began in the late 19th century.

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https://www.stuff.co.nz/world/114537211/this-weeks-europe-heat-wave-could-hasten-the-arctic-ice-melt