Verified Certificate

Supported by the following organizations

This is to certify that Rafael Dario Sperandio Contreras successfully completed and received a passing grade in FOS4: Climate & Us a course of study offered by ColumbiaX, an online learning initiative of Columbia University.

Noted by

David J. Helfand

David J. Helfand

Professor, Department of Astronomy Columbia University

Ivana N. Hughes

Ivana N. Hughes

Director of Frontiers of Science Columbia University

About edX

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About edX Verified Certificates

An edX Verified Certificate signifies that the learner has agreed to abide by the edX honor code and completed all of the required tasks of this course under its guidelines, as well as having their photo ID checked to verify their identity.