Not knowing which way the scale tips is in-itself scary, I think. It means moving into uncharted territory.
Similarly, global warning is rising temperature, and we are trying hard to model the effects, but it's really all it is: models and guesses. We would much prefer if we could go back to the climate we were familiar with for the past 20,000 years. That one we were starting to understand to some extent. Now all bets are off
I didn’t conclude that the effects are benign. I claimed that this article does nothing to assist me in deciding if they are.