A geographic information system (GIS) is a system designed to capture, store, manipulate, analyse, manage, and present all types of geographical data.
Looking after the earth and each of its parts requires more data, a better index and more data processing. GIS is the answer
There are numerous of choices. In principal they are divided into two big categories: open-source and commercial. QGIS for example is a very popular open-source GIS software, while ArcGIS is a very popular commercial GIS software.
To create and maintain a GIS, you will need: data, servers (or access to cloud services), software and most importantly people with GIS skills and methodology.
