Climate Tipping Points (CTPs)

Consider the following statements:

  1. According to a recent study, the climate crisis has driven the world to the brink of multiple disastrous tipping points.
  2. Climate Tipping Points (CTPs) are markers of a larger climate system which when triggered beyond a threshold, perpetuate warming on their own.
  3. According to the study, five dangerous tipping points may already have been passed due to the 1.1°C of global heating caused by humanity to date.

Which of the above statement(s) is/are true?

A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above