[spunkets]

"I quite frequently see scientists directly quoted in news reports as saying that man-made global warming is "established scientific fact""

The mechanics of global warming do occur. The differences all amount to the significance of the effects and what should be done. The warmists overstate the significance of the effects and often invent effects.

[spunkets]

"The differences all amount to the significance of the effects and what should be done."

I should have said, the values of the effects and their significance.