Sure, this sounds reasonable, but it's really not when you look at the magnitudes of our impact over time. It's clear that the actions of the last 50-100 years

Sure, this sounds reasonable, but it's really not when you look at the magnitudes of our impact over time. It's clear that the actions of the last 50-100 years or so are in extreme excess of what can be stabilised by the global weather and ecological systems. We've gone from about two thirds remaining natural wilderness in the world in the early 1900s to one third remaining today. The continued survival of most species, including ours, is very much in danger if we don't reverse a lot of this.