Isn't there an alternative?
How 'bout a compostable trash bag.
Or so I thought.
Then I learned that compostable trash bags, when used as a bag for landfill waste, add to the problem of methane generation. They are designed to be composted and work really well for that.
Methane v CO2
This is an important issue for us because methane has a more potent effect on the warming of the earth's atmosphere than CO2.
The effect of reduced methane emissions on mitigating global warming is powerful. Because methane has a fairly short atmospheric lifetime, and because it is so effective in trapping heat, efforts to reduce methane emissions will have a rapid impact on mitigating global warming." Gina Rodriguez
The best advice I've seen so far is - NO BAG AT ALL for the landfill-destined trash. Use a small trash can that can be easily rinsed out in the sink and because it fills up quickly, you'll be motivated to take it out and empty it often.
It seems like a strange concept. Are you willing to give it a try?
thinking that a little won't matter.