Environmental economics studies the interactions between our production and consumption choices, the environment, and society’s well-being. Our production and consumption decisions can generate pollution, which affect ourselves and others, and environmental economics seeks to understand the incentives that motivate these choices, how they impact the environment, how this impact affects our well-being and how we can fix the environmental problems we create. Within this mind frame, economists investigate topics such as climate change, deforestation, pollution control and many others.
Do you want to know more? The link below contains an introductory class on environmental economics: