CloudSat, a joint National Aeronautics and Space Administration (NASA) and Canadian Space Agency (CSA) satellite, is providing the first global survey of cloud profiles and cloud physical properties, with seasonal and geographical variations, needed to evaluate the way clouds are parameterized in global models and contributing to improved predictions of weather, climate and the cloud-climate feedback problem.

The 36th Buenos Aires International Book Fair took place 22 April-10 May 2010 at La Rural Exhibition Center in Buenos Aires, Argentina. The fair is considered one of the most important cultural events in Latin America and is one of the largest expositions in the Spanish-speaking world. This event serves as a place for both entertainment and exchange of knowledge between authors, scientists, students, and various other international and local intellectuals. In an area designated for younger guests entitled, "Youth Space 2010-Caring for Our Planet," GLOBE was represented by students from two schools in Pujato, Buenos Aires: "Our Lady of Carmen" Primary School and "John F. Kennedy" School of Education.

The month of April marked GLOBE's 15^th birthday and served as a reminder to the GLOBE community of the importance of Earth and its resources. As part of the GLOBE Program's partnership with Live Earth, students from 10 countries ran 6 kilometers, representative of the average distance many women and children must walk each day in order to secure clean water for their families. GLOBE students in multiple countries also contributed to the clean-up of local watersheds, which corresponded with other beautification events held in honor of Earth Day on 22 April.