Coolest Summer On Record In The US | Real Science

Coolest Summer On Record In The US | Real Science: "The frequency of 90 degree days in the US has been plummeting for 80 years, and 2014 has had the lowest frequency of 90 degree days through July 23 on record. The only other year which came close was 1992, and that was due to dust in the atmosphere from Mt Pinatubo."



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