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Sustainability: I like to get a 30,000ft vision of sustainability from the Brundtland reports's definition which includes 'looking after the needs of the present generation without compromising the ability of future generations to look after themselves'. Somewhere between the extremes of short term profits or Net Present Value cost benefit analysis and only considering the protection of natural ecosystems as they are or some consider they should be, there is the life styles you and I and future generations think we need, and what's more probably think we have a right to.