What is the main idea of this passage?
[One criticism of the green revolution is that increasing
the efficiency and quantity of food products has made
overpopulation possible. Overpopulation has been
associated with resource depletion, environmental
pollution and destruction, overcrowding, and social and
political conflict
The green revolution solved one problem but
created new ones.
The green revolution reduced the risk of political
conflict.
The green revolution has resulted in decreased
pollution
The green revolution has contributed to lack of food
quality and nutrition,