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 1970s and 90s. c. air pollution only became a concern in the 1980s. d. scientists observed severe ocean acidification. please select the best answer from the choices provided

Explanation:

The shift from concern over global cooling to global warming was due to observed steady surface - temperature increases between the 1970s and 1990s. This scientific evidence led to a change in focus. Option a is a misrepresentation of the scientific community's motives. Air pollution was a concern before the 1980s, and ocean acidification is related to a different environmental issue than the shift from global - cooling to global - warming concerns.

Answer:

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