The rate of global warming might be reduced by

A.     replacing the use of coal and oil with natural gas.

B.     a reduction in the Earth’s albedo.

C.     a reduction in carbon fixation.

D.     an increase in deforestation.

A

Three of the four responses were incorrect and only one option was possible. Any confusion between carbon capture and carbon fixation was not relevant here as it was clear that the option referring to carbon fixation was not correct.