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12 votes
Since the Industrial Revolution, human consumption of fossil fuels have caused atmospheric concentrations of this greenhouse

gas to soar to levels far above any seen in at least 650,000 years, strongly suggesting to scientists that this gas is the driving
force behind recent global climate change.
Oxygen
O Nitrogen
O Carbon Monoxide
Ozone
O Carbon Dioxide

User Jordon Willis
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1 Answer

9 votes
9 votes
Last option.. Carbon Dioxide. Hope this helps (:
User Manibharathi
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