and that mankind doesn't really know what it is doing, that global warming is probably already out of control (as there is no system which can really map it out), that we've most likely already brought about our own self-annihilation but that it hasn't happened yet and we don't know how long it will be before it does. That we are ignorant, powerless, stupid and self-deceiving little beings. (Or that's my interpretation of the programme.)
I was probably the only one watching it. Very unsettling though, especially if you have children.