Who use the term of sustainable development for the first time

It was first used by John Elkington, the founder of a sustainability consultancy firm. This expression means that companies should consider 3 different bottom lines in their businesses – and not only, as was usual at the time (and still is in many companies today), care about the profit and loss account.

Explanation: I hope this helps if not lemme know

steady state because it the only on that maes sense