Recent and on-going work includes studying influences on student achievement, including the impact of curricular change and teacher training; examining variables that affect attitudes and behavioral responses to climate change; exploring the influence of the built environment and other environmental characteristics on health and subjective well-being; analyzing the impact of gender and minority status on career advancement, especially in the physical sciences; exploring the role of leisure in the lives of middle aged adults; and analyses of cohort variations in violent behavior, with special emphasis on the relation of social policy to variations in homicide and suicide among youth in the United States and other countries.