Not really! The "Science" behind catastrophic Human caused global warming, is weak at best.
I think most of us can agree that CO2 does function as a greenhouse gas, but that is not enough
to fill the boots of the catastrophic predictions.
The science is that "IF" we double the CO2 level, it will create an energy imbalance at the top of the atmosphere of about 3.71 Watts per meter squared.
This imbalance would then force the surface temperatures to increase to balance the input and output energy.
ACS has the actual equations for those interested.
Climate Sensitivity - American Chemical Society
So "IF" we manage to Double the CO2 level, and "IF" CO2 climate sensitivity is the stated 3.71 Wm-2,
then we might see warming of ~1.1 C.
The problem is that 1.1 C, spread over the 180 years it would take to reach a 2XCO2, would look almost exactly like
the warming we and our parents and grandparents have been living through.
To become catastrophic, the warming from the CO2 forcing, would then need a feedback factor applied,
and so far no one has been able to observe this required feedback factor.
While it is likely the feedbacks are real, (Both positive and negative), that we have not been able to detect them raises questions.
Feedbacks would not be able to tell the difference between sources of inputs, and so would see any warming or cooling as an input.
For the feedbacks to cause an Equilibrium Climate Sensitivity (ECS) of 3 C, requires a feedback factor of 3/1.1=2.72,
SO now we are at "IF" we manage to Double the CO2 level, and "IF" CO2 climate sensitivity is the stated 3.71 Wm-2,
and "IF" the feedback factor is 2.72, then we might see unusual warming. not necessarily bad or dangerous, just unusual.
FYI the only study that has managed to detect CO2 forcing, detected lower levels than the 3.71 Wm-2.
http://asl.umbc.edu/pub/chepplew/journals/nature14240_v519_Feldman_CO2.pdf