Projections of future climate change are inherently uncertain. what is the principal reason that climatologists struggle to narrow the range of temperature changes expected by the end of the century?
feedbacks in the climate system are impossible to model with sufficient accuracy
earth's global climate system is too inherently variable to describe with precision.
because human societal behavior is inherently unpredictable, emissions are uncertain.
random events are extremely common, which complicates accurate forecasting.