More and more people (although not nearly enough) are coming to recognise that humanity cannot continue on its current trajectory, as the limits we face become ever more obvious, and their implications starker. There is a growing realisation that the future must be different, and much thought is therefore being applied to devising supposed solutions for that future.
These are generally attempts to reconcile our need to make changes with our desire to continue something very much resembling our current industrial-world lifestyle, with a view to making a seamless transition between the now and a comfortably familiar future. The presumption is that it is possible, but this rests on foundational assumptions which vary between the improbable and the outright impossible. It is a presumption grounded in a comprehensive failure to understand the nature and extent of our predicament.
We are facing limits in many ways simultaneously – not surprising since exponential growth curves for so many parameters have gone critical in recent decades, and of course even more so in recent years. Some of these limits lie in human systems, while others are ecological or geophysical. They will all interact with each other, over different timeframes, in extremely complex ways as our state of overshoot resolves itself (to our dissatisfaction, to put it mildly) over many decades, if not centuries. Some of these limits are completely non-negotiable, while others can be at least partially mutable, and it is vital that we know the difference if we are to be able to mitigate our situation at all. Otherwise we are attempting to bargain with the future without understanding our negotiating position.
The vast majority has no conception of the extent to which our modernity is an artifact of our discovery and pervasive exploitation of fossil fuels as an energy source. No species in history has had easy, long term access to a comparable energy source. This unprecedented circumstance has facilitated the creation of turbo-charged civilization.