Lecture, two hours; laboratory, two hours. Requisites: course M71 (or Program in Computing 10A); Life Sciences 30A and 30B, or Mathematics 3A and 3B, or 31A and 31B. Students gain basic ability to understand, conduct, and communicate scientific research in atmospheric and oceanic sciences. Univariate and bivariate statistical data analysis, scientific computer programming, basics of scientific process, finding and reading scientific literature, basic experimental techniques, Earth system data analysis and visualization, and communication of scientific findings in oral and written form. Skills taught in context of projects from atmospheric and oceanic sciences. P/NP or letter grading.