Abstrak Penelitian ini bertujuan untuk mengembangkan “Interactive Digital Module Of Global Warming (IDMOGW) Berbasis STEM-Project Based Learning” yang valid sebagai bahan ajar fisika di Sekolah Menengah Atas (SMA). Metode yang digunakan dalam penelitian ini adalah Research and Development (R&D) dengan model ADDIE (Analyze, Design, Development, Implement, dan Evaluation). Langkah-langkah penelitian yang dilakukan ialah analisis kebutuhan, merancang bahan ajar, menghasilkan dan memvalidasi bahan ajar, mempersiapkan lingkungan belajar dan menilai kualitas instruksional bahan ajar. Produk dikembangkan dengan bantuan aplikasi Canva. Berdasarkan hasil uji validasi oleh para ahli diperoleh interpretasi skor sebesar 84,23% dari ahli media, 83,66% dari ahli materi, dan 87,5% dari ahli pembelajaran. Selanjutnya, hasil uji coba produk oleh pengguna diperoleh interpretasi skor sebesar 96,38% dari guru dan 89,77% dari siswa. Hasil interpretasi skor dari uji validasi dan uji coba tersebut menunjukkan bahan ajar yang dikembangkan sangat valid sesuai dengan kriteria tabel interpretasi skor. Berdasarkan penelitian ini dapat disimpulkan bahwa Interactive Digital Module Of Global Warming (IDMOGW) Berbasis STEM-Project Based Learning yang dikembangkan sangat valid digunakan sebagai bahan ajar fisika di Sekolah Menengah Atas (SMA). Kata-kata Kunci: Modul, STEM-PJBL, Pemanasan Global. Abstract This research aims to develop a valid "STEM-Project Based Learning Interactive Digital Module Of Global Warming (IDMOGW)" as physics teaching material in High Schools (SMA). The method used in this research is Research and Development (R&D) with the ADDIE model (Analyze, Design, Development, Implement, and Evaluation). The research steps carried out were needs analysis, designing teaching materials, producing and validating teaching materials, preparing the learning environment and assessing the instructional quality of teaching materials. Products are developed with the help of the Canva application. Based on the results of the validation test by experts, it was obtained an interpretation of scores of 84.23% from media experts, 83.66% from material experts, and 87.5% from learning experts. Furthermore, the results of product trials by users obtained a score interpretation of 96.38% from teachers and 89.77% from students. The results of the interpretation of the scores from the validation tests and trials show that the teaching materials developed are very valid according to the criteria for the score interpretation table. Based on this research, it can be concluded that the developed STEM-Project Based Learning Interactive Digital Module Of Global Warming (IDMOGW) is very valid to be used as physics teaching material in High Schools (SMA). Keywords: Module, STEM-PJBL, Global Warming.