That's a tough request: Given that the question is flawed, answer the question? Um.... Frankly, I can't even figure a way that this could relate to reality. I guess the idea is that we're not in a steady-state with the environment, but different resources are being depleted so differently from each other that it is tough to establish a single rate. IE, how do you make a combined rate between something completely renewable, like hydro power or wind power, with something that will deplete in 200 years (like coal) or 100 years (like oil)? The "Earth Overshoot" concept implies an annual budget, but neither extreme lends itself to such a measure. Solar power never depletes, so it is impossible to overshoot. Coal will deplete in several hundred years, so how do we budget that? It's not like there is an annual amount of coal mining that will maintain a steady state (or if there is, it would be pretty small since coal takes millions of years to form). Personally, I find the "earth overshoot" concept to be totally useless.