Methane concentration in the atmosphere. Eyeballing, it looks be accelerating since 2010. I'm not going to do a calculation based on just a few years, because the uncertainty will be too big to show anything useful. Something to keep an eye on.
Source: NASA
Jim wrote a post at OnymousGuy about this two months ago:
ReplyDelete“In summary, the increase in methane is well approximated by a quadratic fit to the twelve-month moving average of emissions; we project that methane emissions will rise from 33.08 ppm CO2 eq in 2005 to about 37.37 ppm CO2 eq in 2025, an increase of 12.9% over only two decades…
Methane emissions are currently increasing annually by a relative rate of about 0.95%, clearly a serious situation.”
Here's the link to his post OnymousGuy.
Here is his graph of atmospheric CH4 concentration (in CO2 eq ppm) since 2005.
ReplyDelete