Reporting from IGCS winter school 2020 in Chennai, India
It is nearly 33 years since the UN World Commission on Environment and Development (known in short as the Brundtland Commission) famously defined sustainable development as a process of change in which the “exploitation of resources, the direction of investments, the orientation of technological development; and insti-tutional change are all in harmony and enhance both current and future potential to meet human needs and aspirations.” During the past 3 decades, global land use changes seem to discredit that expectation by moving in the reverse direction.
Seen from space, the Earth’s land surface is increasingly a mottled landscape made up largely of the built envi-ronment, comprising roads, buildings and industrial farming systems, with only a few islands of non-engineered natural systems.
Cities, which used to be self-contained units surrounded by the vast countryside, now appear to be simply more dense settlements than those that can be seen elsewhere. It therefore seems imperative to blur the distinc-tions across cities, small towns and rural areas and to examine new forms of ‘periurbanisation’ of the so-called hinterland, whose sustainability challenges are vast and growing. This Winter School was an attempt to pick up the pieces around sustainability and land to try to formulate a more integrated view. It covered the following themes:
1 Sustainable development and land
2 Urbanisation and the land-water-food-ecosystems nexus
3 Sustainable governance beyond cities