Sentences with phrase «atmospheric methane molecules»
In recent years, researchers have noticed another clue to the puzzle: The carbon atoms in atmospheric methane molecules have shifted toward lighter isotopes.
http://www.sciencemag.org/ Not exact matches
«Detergent» molecules may be driving fluctuations in atmospheric methane concentrations: New study suggests hydroxyl radicals may be behind unexplained recent increase in methane levels.»
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.
Near Titan's surface, about 5 percent of the atmospheric molecules are methane, the fraction decreasing with altitude.
I think I know what you mean here but in the context of the previous Much Ado about Methane article with discussion of the difference between atmospheric lifetime of a CO2 molecule vs. lifetime of an increase in concentration, this could also be put more clearly.
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.
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).