The below chart shows just how fucked. It's pretty fucked though. The 'impossible' point of no return line is going to kick in soon, and to be a pessimist I think we're not clever/wise/selfless enough to avoid it.
Adapting to the very changes we're creating..
We are changing our environment faster than we can adapt to it. This is ultimately going to lead to a breaking point. And at that breaking point we'll probably be forced to metamorphosize.
What we know about metamorphosis from nature..
When we look at metamorphosis in nature one rule is true of all creatures, metamorphosis is switched on when the juvenile hormone reduces to a level where it is no longer present. Let's say for arguments sake that humanity is in it's juvenile stage at present. We're going through the difficult growth spurt. And let's say that this period may well come to an end, that our 'collective juvenile hormone' may reduce to a level where it is no longer present. Might this lead to our own metamorphosis?
Can creatures make a decision to metamorphosize?
We can see from these tadpoles that creatures are capable of making a 'decision' to metaphmorphosize. All be it in this case a subconcious decision, it is still based on reading signals from their direct environment on which choices will favour their very survival. Darwin stuff.
Are we reading the right signals?
From tadpoles to toads. 60's lab test put toads into bell jars in cheerfully coloured rooms and found that they're hardwired to eat natural looking things (worms) and ignore unnatural looking things (worms that walk upright). This is where I think humans have gone fundamentally wrong. We've re-programmed ourselves to react to unnatural external signals (international financial markets/ consumerism/ the x-factor) where as we ignore the natural signals we're being given from nature (exponentially worrying changes to our natural environment and eco system). We're concentrating on, and attempting to solve the wrong problems. Imagine the above toad tried to eat the walking worms and ignored to crawling ones, it's not going to get very far.
Can humans metamorphosize?
Yep, we fundamentally do in the first 30 seconds of our lives (physically) and then continue to do so (metaphorically).