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AP® Environmental Science

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Methods of Reducing Greenhouse Gases

APES-MBYHLI

The global temperature has risen 0.85 degrees celsius since 1880. Nine of the 10 hottest years on record have occurred since the year 2000. This has spurred world leaders into encouraging countries to reduce climate change by controlling a number of​ anthropogenic greenhouse gases.

All of the following are methods of reducing greenhouse gases EXCEPT

A

a wet scrubber spraying a lime mist on flue gas in coal burning power plants effectively neutralizing sulfur dioxide.

B

installing three-way catalytic converters in automobiles and industry that reduces carbon monoxide and nitrous oxide outputs.

C

building a power plant with a carbon capture system that captures all waste gas and injects in underground in geological formations.

D

using animal manure from livestock farms in methane digesters to produce electricity.

E

switching to an Alternating Wetting-Drying (AWD) irrigation method in rice fields to reduce methane production from anaerobic​ bacteria.