According to scientists from the International Geosphere-Biosphere Program, three boundaries of the planetary system have already been crossed. What are they?
A) Climate change, the nitrogen cycle, and biodiversity loss.
B) Biodiversity loss, ozone depletion, land-use change.
C) The nitrogen cycle, ocean acidification, biodiversity loss.
D) Climate change, global freshwater use, ozone depletion.

Question

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The three planetary boundaries that have been crossed are climate change, the nitrogen cycle, and biodiversity loss, as identified by scientists from the International Geosphere-Biosphere Program.

According to Scientists from the International Geosphere-Biosphere Program, Three Boundaries