抄録
Space environment that causes satellite anomalies and negative effects to the human activities both in space and on the ground is referred to as space weather. In order to avoid such risks, it is important to gather information on space weather, to make space weather forecasts and to consider best practices for mitigating the risks. In this review paper, we identify risks from space weather and demonstrate current procedures such as observations of space weather phenomena, development of models and forecast tools and engineering approaches to mitigate space weather effects. Important point will be an international collaboration. We introduce a new activity by the United Nations, which aims to safeguard space activities by the extended collaboration of the space weather activities in the world.
