The human species has reached a developmental stage where we have the power to perturb natural systems on a global scale.
(The human species; has reached; a developmental stage where we have the power) (we; have; the power to perturb natural systems on a global scale; L:a developmental stage)
The human species we
has reached have
a developmental stage where we have the power
the power to perturb natural systems on a global scale L:a developmental stage