They're robotic in their replies and well trained in their obfuscation and avoidance of facts.
That sad fact applies to both sides - and politicians in particular!
Just imagine that Climate Change (and yes, it IS changing!) were not due to CO2 but was just down to the factors governing the Milankovitch cycle and that from here on, the planet will gradually cool down after a while. Or maybe the cycle is over-oscillating and we go back to a planet that is 17C warmer - as in the Jurassic period.
But either way, imagine that it is not CO2 that is the problem!
So what else are we doing that may destroy the planet and make our lives less pleasant?
Of course, we are not really going to destroy Planet Earth. It will still be here after we are gone. But the prolific pollution we are engaged in and the poisoning of our food will continue. In reality, it's not the planet that is in danger - it's our continued existence we are toying with!
But I think it is a safe bet to say that global warming is a combination of the Milankovitch cycle and our idiotic desire to pave over every inch of our cities, pump out CO2, destroy forests and replace them with monocultures that pander to our collective desire to eat poisonous processed foods - thereby making humanity even less likely to survive.
And of course, medical science will continue to advance, meaning that even more fat, ugly, stupid people will survive and live just long enough to have sex with similar creatures - and multiply the stock of fat, ugly and stupid people!
But I remain eternally optimistic and I believe that if nanoparticles keep getting pumped out in the form of various types of pollution, making us less and less able to procreate, there will be fewer and fewer of us to poison the atmosphere.
Well, I can dream, can't I?