The summer heat wave, which has broken records in parts of Europe, has been so intense that not one of Italy’s 773 glaciers was above the zero-degree line this week
Rescuers using drones resumed the search Tuesday for an estimated 13 hikers unaccounted-for following an avalanche in northern Italy that killed at least seven people and is being blamed in large part on rising temperatures that are melting glaciers. After rain hampered the search Monday, sunny weather on Tuesday allowed helicopters to bring more rescue…