Green SIN is a term used to describe the negative environmental impact of human activities. It is a combination of the words 'GREEN' and 'SIN, ' which refers to the environmental damage caused by human activities such as pollution, deforestation, and overconsumption of resources. ENVY is one of the seven deadly sins, and it can be seen as a GREEN SIN because it encourages people to consume more than they need, leading to an increase in waste and pollution.