时间:2019-01-17 作者:英语课 分类:2018年NPR美国国家公共电台6月


英语课

 


SCOTT SIMON, HOST:


A new study published in the journal Science finds methane 1 emissions 2 from U.S. oil and gas operations are 60 percent higher than previous estimates from the federal government. Now, this comes at a time when we're getting more and more electricity from natural gas, which burns cleaner than coal. But Leigh Paterson reports that burning's not to blame. The problem is leakage 3.


LEIGH PATERSON, BYLINE 4: Anthony Marchese has been focused on methane for years. He's a professor of mechanical engineering at Colorado State University. And in 2013 and 2014, he and his team of researchers spent months on the road - driving around to over 100 oil and gas sites in 13 states.


ANTHONY MARCHESE: You'd pull up to one of these facilities in the morning.


PATERSON: The researchers would take out a fancy, expensive camera.


MARCHESE: A camera that can detect, you know, methane, which is usually invisible.


PATERSON: And at times...


MARCHESE: We would see the facility in what we would call an abnormal operating state.


PATERSON: An abnormal operating state - like, natural gas, mostly methane, spewing out of a storage tank.


MARCHESE: We saw that fairly frequently.


PATERSON: Twenty percent of the time, he says. The Environmental Defense 5 Fund put the new methane study together, using Marchese's data and its analysis, along with data from over 100 other independent researchers. They found that overall the methane leak rate is around 2.3 percent of total gas production. Now, that might not sound like a lot, but EDF estimates that this is enough natural gas to power 10 million homes for an entire year. Ramon Alvarez of EDF was one of the lead authors of the study.


RAMON ALVAREZ: The fact is that the magnitude of emissions are so large that it has a material impact on the climate impact of natural gas as a fossil fuel.


PATERSON: Methane is a powerful greenhouse gas. So leaks make natural gas a dirtier source of electricity than assumed. Now, the energy industry is pushing back on all of this.


KATHLEEN SGAMMA: Science is not one study, and then it's all solved.


PATERSON: Kathleen Sgamma is head of the Western Energy Alliance in Denver.


SGAMMA: It's the preponderance of evidence. And there have been several studies which show much lower leakage rates.


PATERSON: And she argues that Colorado producers have done a great job bringing down their methane emissions. And there is something to that. In 2014, Colorado became the first state to tackle the methane problem with regulations. And since then, so other states - like California, New York and Pennsylvania. But at the federal level, the opposite is happening. The Trump 6 administration is working to roll back two Obama-era rules meant to reduce methane emissions. For NPR News, I'm Leigh Paterson.



n.甲烷,沼气
  • The blast was caused by pockets of methane gas that ignited.爆炸是由数袋甲烷气体着火引起的。
  • Methane may have extraterrestrial significance.甲烷具有星际意义。
排放物( emission的名词复数 ); 散发物(尤指气体)
  • Most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • Dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
n.漏,泄漏;泄漏物;漏出量
  • Large areas of land have been contaminated by the leakage from the nuclear reactor.大片地区都被核反应堆的泄漏物污染了。
  • The continuing leakage is the result of the long crack in the pipe.这根管子上的那一条裂缝致使渗漏不断。
n.署名;v.署名
  • His byline was absent as well.他的署名也不见了。
  • We wish to thank the author of this article which carries no byline.我们要感谢这篇文章的那位没有署名的作者。
n.防御,保卫;[pl.]防务工事;辩护,答辩
  • The accused has the right to defense.被告人有权获得辩护。
  • The war has impacted the area with military and defense workers.战争使那个地区挤满了军队和防御工程人员。
n.王牌,法宝;v.打出王牌,吹喇叭
  • He was never able to trump up the courage to have a showdown.他始终鼓不起勇气摊牌。
  • The coach saved his star player for a trump card.教练保留他的明星选手,作为他的王牌。
学英语单词
acoustic image converter
AFRS
Alikamerli
antijamming blackout
antistatics
aorto-arteriograph
barneveld
be beneficial to
Black Umfolozi
boldyrevite
boyatzis
buttstrap
carbazoquinocins
carboxyhemoglobin
CE-FAST
centrifugal fan
cervicale
Chorhāt
coconut-flavored
communication jamming device
contraction of operators
corcuss
cowerings
cranial epithelioma
DBib
diazo paper
Dramavol
drive volley
easy payment
essoign
friend in court
Fusiformis fusiformis
fuzzy estimator
get one's hopes up
go-and-return path
Gynura elliptica
half-oval edge
halseny
husses
IL-17
immasked
immunizing effect
in gross
intrisically safe luminaire
iodohippurate sodium
Jeppel's oil
job time report
lemmatizes
Liparis assamica
Lonicera longituba
lost in astonishment
manganese(ii) succinate
Mastigamoeba
Mazombe
Minnesotan, Minnesotian
miombos
mixed factorial experiment
mobb
mugwump
necrotizing panniculitis
New Agey
nialamide
normal cooling
normoblasts
Nucleus paratenialis
palace
partitions of file
pearches
pellet impact
pepe expanding machine
pertinency
phase-black
poche
polyhydroxy-metal ion
primi-
push-out induction crucible furnace
re-excitation
reference grids
regiones antibrachii ulnaris
reliable time-sharing environment
reproofed
retractable fin stabilizer
rod array
S by W
sectionalized winding
short horizontal line
silver beet
small hole gage
snakehead fish
sphaerocephalous
sub-bass clef
supereasy
trimedoxine
true altitude above the sensible horizon
Tyropanate
uranyl triphosphate
Vanin plague
vittone
warp knit
waterproof pulverization
weighted average index
xeranthemums