联合学位课程面向希望将环境问题和宗教社区研究纳入其职业生涯的学生，以及希望研究环境问题的文化和伦理层面的学生。联合学位得到了耶鲁大学神学院副教授和耶鲁大学宗教与生态论坛的大力支持，每个环境学位课程都需要完成36个学分，并需要暑期实习，论文或基石项目。此外，所有学位课程的学生在进入FES之前都必须接受为期三周的技术技能培训。这些是每年8月提供的动手研讨会，讲授植物鉴定，生态系统管理，土地测量和城市生态系统分析。
The joint degree is aimed at students who wish to integrate the study of environmental issues and religious communities in their professional careers and for those who wish to study the cultural and ethical dimensions of environmental problems. The joint degree is strongly supported by co-appointed faculty at the Yale Divinity Schooland by the Forum on Religion and Ecology at Yale.Each environment degree program requires a completion of 36 credits as well as a summer internship and a thesis or a capstone project. In addition, all joint-degree students are required to attend three weeks of technical skills training before beginning their studies at FES. These are hands-on workshops, offered every August, that teach plant identification, ecosystems management, land measurement, and urban ecosystem analysis.