I think some on this thread are being deliberately obtuse purely to provoke argument.
It is blindingly obvious that global warming is just one manifestation of a much larger problem that has already being alluded to by others.
Resource depletion, environmental degradation, urbanisation etc etc.
The one common denominator is people.
We have built a civilisation that is a global energy consuming monster, increasingly interconnected and becoming ever more fragile as it's systems become more complex. The discussion and action needs to progress way beyond limiting carbon emissions.