aI am very sincerely hope to cooperate with you in synthetic peptides 正在翻译,请等待...[translate] ain proportion to the amount 以数额的比例[translate] aMethane gas in the atmosphere is known as a "greenhouse"gas 甲烷气在大气知道, “温室"气体[translate]...
aMethane gas (甲烷、沼气)in the atmosphere is known as a “greenhouse” gas because it keeps heat just like a greenhouse does, causing our planet to warm up. That’s an environmental concern. But the digester has a good result. Its gas is kept and used to power electric generators (发...
It is the principal component of natural gas, a mixture containing about 75% CH 4 , 15% ethane (C 2 H 6 ), and 5% other hydrocarbons, such as propane (C 3 H 8 ) and butane (C 4 H 10 ). The three main sources of methane to the atmosphere are (1) biological production from ...
Methane recently reached 1,900 parts per billion (ppb) of Earth’s atmosphere according to measurements taken by theNational Oceanic and Atmospheric Administration(NOAA) in the US. This compares with about700 ppbbefore the indu...
WELLINGTON, Aug. 24 (Xinhua) -- New Zealand scientists have found humans are putting more methane, a powerful greenhouse gas, into the atmosphere through fossil fuel emissions than previously thought, which could alter how countries tackle global warming. ...
Methane is an atmospheric trace gas, which influences numerous chemical processes and species in the troposphere and stratosphere. It makes a significant adverse contribution to the 'greenhouse' phenomenon. Its global concentration in the atmosphere has been rising since the start of the Industrial Revo...
根据文章第四段“Nearly all the methane gas found in earth's atmosphere is produced by biological activity. It usually comes from animal and plant life. But it can also be formed by geological processes, such as interactions between rocks and water.(在地球大气中发现的几乎所有甲烷气体都是由...
Today,methane(甲烷)is a central but under-appreciated part of the fight against climate change.Human activity releases far less methane than carbon dioxide,but methane packs a heavier punch.Over the course of 20 years,a ton of the gas will warm the atmosphere about 86 times more than a ton...
-fifth of man-made global greenhouse gas emissions. It has a shorter lifetime in the atmosphere than carbon dioxide (CO2), but a greater near-term warming potential. In fact, methane has more than 80 times the warming power of CO2over the first 20 years after it reaches the at...
Today, methane is the most important greenhouse gas in the atmosphere after water vapor and carbon dioxide, but its role in heating the Precambrian Earth remains controversial (e.g. Wordsworth and Pierrehumbert, 2013). There are no direct records of its atmospheric concentration before the Pleistoc...