In this image taken on June 22, 2019, an aerial view of melt water lakes on the edge of an ice cap in Nunatarssuk, Greenland. Milder weather than normal since the start of summer, led to the U.N.'s weather agency voicing concern that the hot air which produced the recent extreme heat wave in Europe could be headed toward Greenland where it could contribute to increased melting of ice. (AP Photo/Keith Virgo)
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