...In turn, the awakening of a reflective consciousness at the scale of the entire species is fast becoming an evolutionary necessity
All human beings (the entire species) must become aware of the world's problems (awakening of a reflective consciousness) and this is extremely important for humanity to move forward and continue to progress (an evolutionary necessity)
if we are to avoid an evolutionary crash and a long detour leading to a new dark age for humanity.
This all must happen to avoid an evolutionary halt and a regression (an evolutionary crash).
This my interpretation.
I'm not a teacher.
Student or Learner