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Is Natural Gas Actually On Par With Coal for Greenhouse Gas Emissions? - Slashdo...
source link: https://hardware.slashdot.org/story/23/08/05/0231250/is-natural-gas-actually-on-par-with-coal-for-greenhouse-gas-emissions
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Is Natural Gas Actually On Par With Coal for Greenhouse Gas Emissions? (iop.org) 2
Posted by EditorDavid
on Sunday August 06, 2023 @07:34AM from the emissions-impossible dept.
Is natural gas really a cleaner alternative to coal and oil? That claim "is facing increasing scrutiny," writes Slashdot reader sonlas:
One significant concern with natural gas is the release of methane, a powerful greenhouse gas, during its extraction, production, transportation, and processing. Methane is approximately 30 times more effective at trapping heat in the atmosphere than CO2 over a 100-year period. (And methane leaks can occur at various stages of the gas supply chain, from wellhead emissions during drilling and extraction to leakage during transportation and distribution.) Additionally, intentional venting or flaring of methane also contributes to the problem.
An article published in Environmental Research Letters challenges the assumption that natural gas is a cleaner energy source compared to coal or oil. Their study takes into account the full lifecycle emissions of natural gas, including methane leakage rates, and arrives at a different conclusion. With a methane leakage rate of 7.5% and other relevant factors considered, the greenhouse gas emissions from natural gas can be on par with or even exceed those of coal. Even a lower methane leakage rate of 2% can diminish the environmental advantage of natural gas significantly.
A key aspect of this study is its focus on real-world methane leakage rates. Aerial measurements conducted in various oil and gas production regions in the U.S. revealed substantial methane leak rates ranging from 0.65% to a staggering 66.2%. (Similar leakage rates have been identified in other parts of the world.) These findings raise serious concerns about the climate impact of natural gas and cast doubt on its role as a so-called "transition energy" in the quest for cleaner and more sustainable energy sources, especially liquefied natural gas...
This complicates the search for sustainable energy solutions, especially in Europe where gas was included in the green taxonomy following a push from Germany.
An article published in Environmental Research Letters challenges the assumption that natural gas is a cleaner energy source compared to coal or oil. Their study takes into account the full lifecycle emissions of natural gas, including methane leakage rates, and arrives at a different conclusion. With a methane leakage rate of 7.5% and other relevant factors considered, the greenhouse gas emissions from natural gas can be on par with or even exceed those of coal. Even a lower methane leakage rate of 2% can diminish the environmental advantage of natural gas significantly.
A key aspect of this study is its focus on real-world methane leakage rates. Aerial measurements conducted in various oil and gas production regions in the U.S. revealed substantial methane leak rates ranging from 0.65% to a staggering 66.2%. (Similar leakage rates have been identified in other parts of the world.) These findings raise serious concerns about the climate impact of natural gas and cast doubt on its role as a so-called "transition energy" in the quest for cleaner and more sustainable energy sources, especially liquefied natural gas...
This complicates the search for sustainable energy solutions, especially in Europe where gas was included in the green taxonomy following a push from Germany.
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