Answer:
The sign that the human population is approaching the carrying capacity of the Earth can be seen in the fact that environmental pollution has increased significantly, which is causing ecosystems to die off and stop being self-sustaining, resulting in the extinctions of many other species. Furthermore, overfishing and slash-and-burn agriculture is resulting in the depletion of many agricultural resources we take for granted.
However, as the human population continues to grow exponentially, we cannot say the Earth's carrying capacity is being approached. Furthermore, we produce enough food for 10 billion people annually, while our current population is only 7 billion, further indicating we are far from the Earth's carrying capacity.