https://www.wired.com/story/atmospheric-methane-levels-are-going-up-and-no-one-knows-why/ https://www.wired.com/story/atmospheric-methane-levels-are-g... is a s

https://www.wired.com/story/atmospheric-methane-levels-are-going-up-and-no-one-knows-why/ https://www.wired.com/story/atmospheric-methane-levels-are-g... is a somewhat older but a much more informative and balanced article. The td;lr version is that there is a minority that blames fracking, but most have concluded that it doesn't fit the data. There are a bunch of other theories as well. And the isotopes are not definitive. The fact that someone recently wrote an article concluding otherwise doesn't actually change this since neither data nor the line of argument are particularly new.