Jessie Fuentes, who works providing people with canoes and kayaks, walks along the Rio Grande with the sun pushing the temperature into the 90s on July 6, 2023. The death certificates of more than 2,300 people who died in the United States last summer mention the effects of excessive heat, the highest number in 45 years of records, according to an Associated Press analysis of Centers for Disease Control and Prevention data. With May already breaking heat records, 2024 could be even deadlier. (AP Photo/Eric Gay, File)