内容摘要：The Saudi embassy did not immediately respond to messages seeking comment.

The Saudi embassy did not immediately respond to messages seeking comment.

Others lack an emergency action plan, which lays out steps staff need to take if a player falls sick, with only 32 states requiring them, Stearns said. Complicating safety efforts are resources, with poorest districts often lacking the means to afford protective equipment and athletic trainers.Families wave and take photos as members of the Clinton High School freshman football team arrive for a game at Brandon High in Brandon, Miss., Tuesday, Aug. 27, 2024. (AP Photo/Gerald Herbert)

Families wave and take photos as members of the Clinton High School freshman football team arrive for a game at Brandon High in Brandon, Miss., Tuesday, Aug. 27, 2024. (AP Photo/Gerald Herbert)The best policies, like those in Georgia, Louisiana, New Jersey and New Hampshire, include heat acclimatization guidance, weather-based modifications, availability of cold water immersion tubs and protocol for treating heat illness including cooling a player before transporting them to the hospital.The case of Laster illustrates some the fatal mistakes his family believes happened and ultimately led to his death. Mississippi’s heat policy at the time fell short in several areas, including requiring no emergency action plan nor wet-bulb globe temperature monitoring.

According to a federal lawsuit filed in January against the Rankin County School District, the first practice was held on the hottest part of the day and didn’t give players any time to adapt. They went right into an intense conditioning. When Laster began showing symptoms of heat illness, including dizziness, disorientation and nausea, coaches pushed him to keep going until he threw up and passed out.Members of the Baker High football team warm up at practice in Baker, La., Wednesday, Aug. 28, 2024. (AP Photo/Gerald Herbert)

Members of the Baker High football team warm up at practice in Baker, La., Wednesday, Aug. 28, 2024. (AP Photo/Gerald Herbert)

The school allegedly had nothing on the field to treat Laster’s condition nor any plan to address the emergency, choosing to put him in the back of a hot pickup truck, “which would have been hotter than the surrounding area.” Their “grossly inadequate heat prevention and response” contributed to his death, said the suit.Swiss aviation pioneer Bertrand Piccard, center, Raphael Dinelli, left, Climate Impulse engineer and co-pilot, and project manager Cyril Haenel speak in front of the wings of the Climate Impulse, a plane powered by liquid hydrogen, at the press presentation of the project in a hangar in Les Sables d’Olonne, France on Thursday, Feb. 13, 2025.(AP Photo/Yohan Bonnet)

The controlled release of liquid hydrogen from ultra-insulated tanks under the airplane’s wings produces energy that seeps into the membrane of a fuel cell that powers the plane.“The plane has the wingspan of an Airbus 320: 34 meters (about 110 feet). It weighs 5-1/2 tons and it flies at 180 kilometers per hour — that means 100 knots at 10,000 feet (3,000 meters) altitude,” Piccard said Thursday.

One aim is to draw on energy from the “turbulence section” of the atmosphere, which airlines could also use one day to help save fuel, he said.Because it’s hydrogen, the only emissions will be water vapor. Still, outside experts caution that the environmental impact of such water-vapor “contrails” remains unknown in a real-world or large-scale scenario.