Is the percentage of methane from termites more or less than the percentage of methane from cattle?
Myth - that methane contributes in any way, shape, form, or manner to “global warming”.
Methane exists in the atmosphere not only in much lower (parts per BILLION) concentrations than carbon dioxide, its capability to retain and transfer heat energy to the surrounding environment is much less.
The atomic weight of methane is less than that of the major components of air, either oxygen or nitrogen, and it RISES to the highest level, much like water vapor. Only, unlike water vapor, methane does not condense or form solid crystals under earth atmospheric conditions, so like hydrogen or ammonia, it simply wafts off into space, if not consumed in the highly reactive and oxidizing atmosphere of earth.
Not that the world shall lose any significant amount of methane through this venting-off, but that there is so little of it that may be even subject to such a venting-off.
Most of the methane in this world exists in a form known as Methane Hydrate, a substance of somewhat greater density than sea water, and it lies on the floor of the ocean, where the ambient temperature does not rise above about 38 degrees Fahrenheit or about 4 degrees Centigrade.