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Blame the Weather for Last Year’s Rise in U.S. Carbon Dioxide Emissions
http://www.technologyreview.com/news/532076/blame-the-weather-for-last-years-rise-in-us-carbon-dioxide-emissions/[font face=Serif][font size=5]Blame the Weather for Last Year’s Rise in U.S. Carbon Dioxide Emissions[/font]
[font size=4] Carbon emissions have been trending downward, but not quickly enough to offset fluctuations in weather patterns. [/font]
By Mike Orcutt on October 28, 2014
[font size=3]A colder winter was one of the main reasons carbon dioxide emissions from energy use rose in the United States by 2.5 percent in 2013, according to new data from the Energy Information Agency. Besides a small rise in the price of natural gas and slightly cheaper coal, the weather played the biggest role in in pushing up emissions, the IEA says.
The new numbers show that fluctuations in weather patterns and relatively small changes in fuel prices are enough to counteract the emissions reductions that have resulted from greater solar and wind power capacity and increased use of cleaner-burning natural gas instead of coal.
Compared with 2012, there were 18 percent more days in 2013 cold enough to cause a spike in demand for energy for heating, says the EIA. This contributed to an 0.5 percent increase in the amount of energy used per dollar of GDP, bucking the trend seen from 2003 to 2012, when that ratio decreased by an average of 2 percent per year.
In addition, the amount of electricity generated using natural gas dropped 10 percent between 2012 and 2013, while coal generation increased by nearly 5 percent. The price of natural gas rose from $3.54 per million BTU in 2012 to $4.49 in 2013, while the price of coal dropped from $2.38 per million BTU to $2.35.
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[font size=4] Carbon emissions have been trending downward, but not quickly enough to offset fluctuations in weather patterns. [/font]
By Mike Orcutt on October 28, 2014
[font size=3]A colder winter was one of the main reasons carbon dioxide emissions from energy use rose in the United States by 2.5 percent in 2013, according to new data from the Energy Information Agency. Besides a small rise in the price of natural gas and slightly cheaper coal, the weather played the biggest role in in pushing up emissions, the IEA says.
The new numbers show that fluctuations in weather patterns and relatively small changes in fuel prices are enough to counteract the emissions reductions that have resulted from greater solar and wind power capacity and increased use of cleaner-burning natural gas instead of coal.
Compared with 2012, there were 18 percent more days in 2013 cold enough to cause a spike in demand for energy for heating, says the EIA. This contributed to an 0.5 percent increase in the amount of energy used per dollar of GDP, bucking the trend seen from 2003 to 2012, when that ratio decreased by an average of 2 percent per year.
In addition, the amount of electricity generated using natural gas dropped 10 percent between 2012 and 2013, while coal generation increased by nearly 5 percent. The price of natural gas rose from $3.54 per million BTU in 2012 to $4.49 in 2013, while the price of coal dropped from $2.38 per million BTU to $2.35.
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