Pakistani authorities have evacuated thousands of people from their mountain hamlets as the outburst of a glacial lake triggered flash floods after weeks of heatwaves, officials said on Tuesday. The people from several villages in the mountains of Skardu in the northern Gilgit-Baltistan (GB) region were moved to safer places after floods destroyed their houses and crops, local rescue official Haroon Gul said. The region is located between Himalaya and Karakorum Mountain ranges and is home to more than 3,000 glacial lakes, more than in any other part of the world, according to the United Nation…