“Horrific, horrendous, unbearable, unsafe.” That is how medical professionals describe the impact of this year’s heatwaves on Britain’s healthcare system, in response to a survey by the Doctors’ Association UK. In hospitals built for a cooler climate, staff are now dealing with patients too sweaty to receive intravenous drips, medication at risk of degrading in high temperatures and colleagues collapsing on the job with heat fatigue. The past few months have revealed the extent to which...

A top US military commander said mental health was a valid concern after meeting crew deployed on the USS Abraham Lincoln, where conditions aboard the aircraft carrier have led to complaints during its long deployment in the Iran war. Admiral Brad Cooper’s visit to the carrier in the Arabian Sea followed outrage among family members about reports of food shortages, water contamination, mouldy showers and long shifts in wartime aboard the vessel, which has been deployed without a port call for...