Question

why was the concern over global cooling replaced with a concern over global warming? a. the science community needed a cause to frighten the general population. b. steady surface temperature increases were noted between the 1970’s and 90’s. c. air pollution only became a concern in the 1980’s. d. scientists observed severe ocean acidification. please select the best answer from the choices provided

Explanation:

Between the 1970s and 90s, steady surface - temperature increases were observed, which led to the shift from concern over global cooling to global warming. Option a is a misrepresentation of the scientific community's motives. Air pollution was a concern before the 1980s and ocean acidification is not directly related to the shift from global - cooling to global - warming concerns.

Answer:

B. Steady surface temperature increases were noted between the 1970’s and 90’s.