CO2

Iowa's greenhouse gas emissions back on the rise, 3.5 percent increase in 2017 to 131 million tons

Increased use of coal- and natural gas-power plants for production of electricity and two new fertilizer plants helped pushed up Iowa's greenhouse gas emissions by 3.5 percent in 2017.

The hike in emissions came after two years of statewide declines. Even with the increase, total greenhouse gas emissions in 2017 were nearly 6 percent lower than 10 years ago.

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