«Because it's a smaller
molecule than methane, for example, it has the potential to leak easier and move faster through the rock,» Lord said.
Not exact matches
To get a different view, astronomer Giovanna Tinetti and her colleagues at the European Space Agency and University College London focused instead on the light grazing the atmosphere of HD 189733 b. Tinetti had predicted that water would absorb more light at the longer wavelength of 5.8 microns (thousandths of a millimeter)
than at 3.6 microns, in contrast with other
molecules such as
methane and ammonia.
By studying the planet's infrared glow, the astronomers discovered that its air abounds with the carbon - bearing
molecules carbon monoxide and
methane, implying that the planet could have carbide (a compound of carbon and metal) rather
than silicate in its interior.
Molecule for molecule, methane traps 20 to 25 times more heat in the atmosphere than does carbon
Molecule for
molecule, methane traps 20 to 25 times more heat in the atmosphere than does carbon
molecule,
methane traps 20 to 25 times more heat in the atmosphere
than does carbon dioxide.
When he and his colleagues at Scripps and Brigham Young University ran a
methane reaction with thallium — a main group metal — alkanes pushed the solvent
molecules aside 22 orders of magnitude faster
than when the reaction was run with iridium, reducing the overall energy required by about one - third, they report online today in Science.
Since
methane, the main
molecule in natural gas, is a stronger greenhouse gas
than carbon dioxide, these leakages may contribute significantly to the greenhouse effect and climate change.
so a single
molecule of additional
methane has a larger impact on the radiation 5 balance
than a
molecule of CO2, by about a factor of 24 (Wuebbles and Hayhoe, 2002)...........
It's correct that an extra
methane molecule is something like 25 times more influential
than an extra CO2
molecule, although that ratio is primarily determined by the background atmospheric concentration of either gas, and GWP typically assumes that forcing is linear in emission pulse, which is not valid for very large perturbations.
It is less prevalent
than carbon dioxide in the atmosphere but also more potent: A
molecule of
methane results in more warming
than a
molecule of carbon dioxide.
Whether being lesser
than CO2 in number of
molecules in the atmosphere,
methane is a potent greenhouse gas absorbing more infra - red radiation per
molecule than CO2.
Hydrogen gets chipped off
methane molecules, and you're left with something more carbon - rich
than what you'd started with.»
Some trace gases such as
methane have a stronger impact on the heat balance of the earth, per
molecule,
than CO2 does.
But
molecule per
molecule,
methane is only 9 times more potent
than CO2.
Yet the paper shows that the consequences of that
methane molecule will last for more
than a millennium, causing the the seas to rise higher and higher all the time.
Methane traps about 20 times more heat,
molecule for
molecule,
than CO2.
Carbon dioxide is the biggest long - term human - generated contributor to global warming — other
molecules like
methane and water vapor are also greenhouse gases, but their levels are more or less constant; the amount of anthropogenic CO2 has been going up steadily for decades and is higher now
than in any point in human history.
so a single
molecule of additional
methane has a larger impact on the radiation 5 balance
than a
molecule of CO2, by about a factor of 24 (Wuebbles and Hayhoe, 2002)...........
It's correct that an extra
methane molecule is something like 25 times more influential
than an extra CO2
molecule, although that ratio is primarily determined by the background atmospheric concentration of either gas, and GWP typically assumes that forcing is linear in emission pulse, which is not valid for very large perturbations.
To summarize, both the modeling studies mentioned above and the IPCC 2007 report show that where global warming and global climate change is concerned, it is important to consider the impact from
molecules other
than just CO2 and
methane.
If it does, it will be a «tipping point»:
methane is 25 times more potent a greenhouse gas,
molecule for
molecule,
than CO2.
Although
methane is about 200 times less abundant
than carbon dioxide, each incremental
molecule of
methane has about 20 times the heat - trapping power as each additional
molecule of carbon dioxide.
Methane is a greenhouse gas that is 21 times more powerful
than carbon dioxide (although its
molecules have a much shorter atmospheric life
than CO2).