Which group of words best helps the reader understand the meaning of the word cumulative in this sentence?

Question

Many people consider global warming, also called climate change, to stem directly from the cumulative impact of air, land, and water pollution, as well as other human activities.

Responses

also called climate change
also called climate change

Many people consider global warming
Many people consider global warming

to stem directly from
to stem directly from

air, land, and water pollution

give a real answer

Answer 1

air, land, and water pollution