We must not, in trying to think about how we can make a big difference, ignore the small daily differences we can make which, over time, add up to big differences that we often cannot foresee.
And then of course, obviously as far as issues such as global warming, something has to be done on the corporate side, there has to be some mandate or some legislation.
Many a time freedom has been rolled back - and always for the same sorry reason: fear.