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|a Coal to gas |h [electronic resource]. |
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|a [S.l.] : |b Springer Science & Business Media B.V., |c 2011-08-10. |
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|a Climatic Change. Volume 108, Issue 3. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Carbon dioxide (CO2) emissions from fossil fuel combustion may be reduced by
using natural gas rather than coal to produce energy. Gas produces approximately half the
amount of CO2 per unit of primary energy compared with coal. Here we consider a scenario
where a fraction of coal usage is replaced by natural gas (i.e., methane, CH4) over a given
time period, and where a percentage of the gas production is assumed to leak into the
atmosphere. The additional CH4 from leakage adds to the radiative forcing of the climate
system, offsetting the reduction in CO2 forcing that accompanies the transition from coal to
gas. We also consider the effects of: methane leakage from coal mining; changes in radiative
forcing due to changes in the emissions of sulfur dioxide and carbonaceous aerosols; and
differences in the efficiency of electricity production between coal- and gas-fired power
generation. On balance, these factors more than offset the reduction in warming due to
reduced CO2 emissions. When gas replaces coal there is additional warming out to 2,050 with
an assumed leakage rate of 0%, and out to 2,140 if the leakage rate is as high as 10%. The
overall effects on global-mean temperature over the 21st century, however, are small. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15042516/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/04/25/16/00001/FI15042516_thm.jpg |
