Space-Applications in Climate Change and Green Systems: the Need for International Cooperation, Published 2010, 66 pages. Over the past half-century, space systems and activities have made crucial contributions to the study and understanding of climate change, through the multi-decade accumulation of vast quantities of scientific data concerning the atmosphere, the oceans, the lands, and the mechanisms of exchanges between these domains. The future activities of the global space community can make significant contributions to monitoring and understanding both the causes and the consequences of Climate Change, as well as to mitigating its effects. This report of the International Academy of Astronautics addresses these potential contributions, examining three critically important themes: observing Earth from space, leveraging the integration of space and ground systems, and enabling novel green systems and technologies. The report finds that there is already significant and successful international cooperation, particularly as regards Earth observation, but that still more can be done. The report concludes by presenting the recommendations of the Academy to the global space community for action in each thematic area, including crosscutting actions for enhanced international cooperation both among the members of the space community, and with organizations external to it.