What is one "low-tech" method currently available to actively remove CO2 from the air?
A) reforestation of previously cleared landscapes
B) capturing CO2 in smokestacks (using smokestack scrubbers)
C) using iron and other supplements to fertilize the ocean (increase phytoplankton biomass)
D) expansion of rice farming
E) None of the answer options is correct.
Correct Answer:
Verified
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