If there's life on that world, something potentially catastrophic is happening to it.

[pscot]

We've all read the reports, or seen the media discussion. Except it can be a little hard to grasp the sheer magnitude of what our species has accomplished. Dire warnings that we've crossed 400 parts-per-million of atmospheric CO2 (a level last seen tens of millions of years ago) may sound pretty bad, but it takes a little intellectual imagination to really grasp what's going on.
Let's give that a shot.

...

Except that is for an average output, spread across 263 years. Estimates of today's CO2 production go as high as about 40 billion tons per year. That'd take something like ten billion acres of forest burning each year, which is about 42 million square kilometers. The entire continent of Africa is a mere 30 million square kilometers. So this, plus another third, on fire, each year:

https://blogs.scientificamerican.com/life-unbounded/the-crazy-scale-of-human-carbon-emission/?wt.mc=SA_Reddit-Share