1、HYE MIN PARK,KELLY KLIMA,SOPHIA CHARAN,JAVIER ROJAS AGUILERAIdentifying Resilient,Sustainable Cooling Strategies for Los AngelesHow Might Landlords of Single-Family Homes Meet Indoor Temperature Thresholds?As climate change intensifies,the world will have more-frequent,more-severe,and more-prolonged

2、 heat waves.1 Recent research indicates that such events can be dangerous and,in some cases,deadlyespecially for older adults and young children.2 As these events get worse,they might lead to even more ill health effects and deaths than we have seen his-torically.Increasingly,individual communities

3、are considering how to adapt to these heat risks in ways that account for their local context and populations.3 One of these communities is the County of Los Angeles in California.Historically,Los Angeles County has had a mild climate;the mean daily maximum temperature generally stays below 80 degre

4、es Fahrenheit(F)at Los Angeles Inter-national Airport,4 91F in Pasadena,5 and 95F in the San Fernando Valley.6 More recently(such as in 2018 and again in 2024),7 Los Angeles County has seen high temperatures of more than 110F,with statistically significant increases in heat illnesses,emergency servi

5、ces,and hospitalization rates during these heat wave events.8 Heat-related illnesses and deaths are preventable,and cooling indoor temperatures via air conditioning(A/C)is the most common protective measure.9 However,more than 1.1 million units(or more than 30 percent of residential homes)in Los Ang

6、eles County lack any cooling devices,10 and renters face more challenges than homeowners to access cooling in their homes.Given this context and the high level of renters in the county,11 the Los Angeles County Board of Supervisors began working in 2024 to develop an ordinance that would establish a