Other posts have touched upon that theme (e.g. A Green Way Out of Here, BioChar: A Green Way Out of Here, A Methanol Economy Way out of Here, and Nanoengines For Spacecraft? to name a few).
The following video continues the technical discussion:
Scientists tend to focus on the technical problems so they can sometimes be very optimistic, because there are scientific remedies which can be done.
At the same time, others focus on the problems that the Toxins of Power bring to this table, and they are not as optimistic.
They tend to be of the opinion that there are indications that we are confronting a plague rather than an engineering problem.
On the other hand, there is an element of criminality because when millions need not be poisoned but are poisoned, there is a criminal insanity in the mix.