07/07/2018, 1:58 pm EDT

Northern Hemisphere Historical Heat Wave Starts July. Why?

Hostile excessive heat breaking all-time records in many sectors of the northern hemisphere including the U.S., Western Europe, The Black Sea region to southern Russia and northern Siberia during late June and early July is linked to an unusually negative phase of the global atmospheric angular momentum index which was caused (in-part) by the great North Atlantic cool pool (south of Greenland).