It is said that with the serious effects on the global environment from human activities, there is a possibility that the earth system is running out of control towards becoming a “Hothouse Earth.” As accurate understanding of current situations is important for sustainable development, there is an urgent need for all stakeholders to cooperate in creating a system that can help to accurately understand what is happening to the earth system. While the process of establishing an observation network and patiently maintaining and managing the data it obtains may seem to be a dull process, we cannot afford to let investments in such infrastructures lapse.