https://globalresearchalliance.org/lessons/course-1-introduction-to-climate-change-science-lesson-1/ 2022-05-15T22:57:11+00:00 monthly 0.6 https://globalresearchalliance.org/lessons/course-2-introduction-to-international-ghg-obligations-lesson-1/ 2022-05-15T22:26:49+00:00 monthly 0.6 https://globalresearchalliance.org/lessons/course-3-introduction-to-science-behind-agricultural-ghg-inventories-lesson-1/ 2022-05-15T22:27:27+00:00 monthly 0.6