The purpose of this study is to investigate the impact of environmental sustainability education on healthy wellbeing among teachers in senior secondary schools in Rivers State, Nigeria. The design for this study is a descriptive survey, which involves describing the existing situation without manipulating the study subjects. The population consisted of 247 government-owned senior secondary schools in Rivers State, with a total of 8,452 principals and teachers. This includes 247 principals and 8,205 teaching staff, comprising 4,413 male staff and 4,039 female staff. A sample size of 400 principals and teaching staff was determined using the Taro Yamane formula. The sample was drawn using a stratified random sampling technique. The sample drawn consisted of 167 males and 233 females from three secondary schools in the three senatorial districts of Rivers
South-East, West, and Rivers East. The research instrument used was a questionnaire titled “Assessing the Impact of Environmental Sustainability Education on Healthy Wellbeing Among Secondary School Teachers in Rivers State, Nigeria (AIESEHWASSSRSN),” developed by the researchers