Natural gas is used for electricity generation, domestic purposes, transportation, and industrial manufacturing of fertilizers. Methane is a byproduct of natural gas combustion. The following table reports the total U. S. methane emissions from natural gas systems in million metric tons of carbon equivalent (MMTCE):
Year 1990 1995 2000 2005 2010
Total Methane
(in MMTCE) 32.9 33.2 35.6 36.7 37.9
Data Courtesy of EPA
Which statement most likely describes an impact of the trend shown in the table.
STUDY ISLAND.
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