Shale gas methane leakage 'seriously overestimated': UK think tank
London (Platts)--26 Oct 2015 925 am EDT/1325 GMT
Previous estimates of methane leakage in shale gas production have
been "seriously over-estimated," according to a report released Monday
by British free-market policy think tank the Centre for Policy Studies.
Methane, the main component of natural gas, has a high greenhouse
potential, and opponents argue that even if one or two percent of the
gas leaks, the advantage of natural gas over coal would be negated, it
said.
"This estimate is incorrect; over a 100-year time span, an implausible
12% of the produced natural gas used today would have to leak in order
to negate an advantage over coal," the report said.
"The best current estimates for the average leakage across the whole
supply chain are below 3%; even at 3% leakage natural gas would produce
less than half the warming of coal averaged over the 100 years following
emission," it said.
The UK shale gas industry has struggled to get off the ground despite
strong support from the current Conservative Party government.
The Centre for Policy Studies, which was co-founded by former
Conservative Prime Minister Margaret Thatcher in 1974, said, "there is a
concern, held by many thoughtful people and others, that the danger of
fugitive methane is a compelling reason to stop all development of shale
gas."
"Another way of thinking about the same issue is to ask how much better
is natural gas than coal at certain leakage rates, and over certain
timeframes."
The report is authored by Richard Muller, professor of physics at the
University of California, and his daughter Elizabeth Muller, who
together founded Berkeley Earth in 2010, a non-profit organization
focused on climate change.
--Nathan Richardson,
nathan.richardson@platts.com
--Edited by Alisdair Bowles,
alisdair.bowles@platts.com
© 2015 Platts, The McGraw-Hill Companies Inc. All rights reserved.
To subscribe or visit go to:
http://www.platts.com
http://www.platts.com/latest-news/natural-gas/london/shale-gas-methane-leakage-seriously-overestimated-26254502
|