Developing countries are rare of data other than the industrialized countries. Why? As the country is poor, the human resources are not develop and scientific research cannot be done easily and we have to take the international aid at that time. Many educated person are not coming back to his own country due to the country's poor status and as country's poor management lose the educated person. There are many reasons for that case. So as, data can be get by doing research activities and as today's age is the IT Age, we can look the earth or one place from satellite and radar image.The famous one where most of the data can get is NASA. NASA is very famous for presenting many genius scientists, technician and researchers from everyone around the globe. After collecting data, we can extract many information by using advanced software. 

When I attended one workshop on Water, Land and Ecosystem forum, most of the attendees proposed on lack of data. There are many open data portals nowadays for the students to do research easily and many line ministries are opening to sell the data to the teachers, students and researchers. If we do not look for anything, we wouldn't find. Also, the data provider should also make the loud voice and data hunger should go and fetch there.

Data are not always perfect thing, we can expect one nearest possible solution in the future but we couldn't accept that is the sure thing because we can't compute from the holistic point of view and we have to make the clear decision on that also.