Abstract
Global environmental change is emerging as the effect of transformation of the land, the ocean and the atmosphere driven by synergy of socio-economic and natural processes. As the progress of rapidly growing interconnectedness in the world, we have begun to induce the planetary scale change in our own life support system. Especially African environment is vulnerable to climate change and affecting human security in a broad sense. This paper describes needs for geoinformation and corresponding JAXA's satellite-based monitoring of environment.