At IEMA, we define a green economy as:
“A potential future state of the whole UK economy in which fundamental change in the way the economy functions, not unlike the first industrial revolution, has taken place. Growth will continue to be the essential motif of our economy, but its measurement will be more holistic, more consistently factoring in people and planet alongside profit. For example, we will quantify and value biodiversity as we quantify and value domestic production.”
This is not a different or separate economy, but an evolved economy.