‘Oppressive’ heat triggers health warnings across US and Europe

Tens of millions of people sweltered across the US Northeast and Midwest on Monday as record-high heat disrupted electricity supplies and train travel.

Heat warnings, which began over the weekend and are set to continue through the week, were in effect across much of the United States. East Coast officials warned that, as the heat combines with humidity, many places could see conditions that “feel like” 110 degrees Fahrenheit (43