When I was little in the late 60s/early 70s I remember my grandmother pushing one of these around the yard. It sounded like a bunch of scissors snipping away at the grass. By the time I was old enough to be taught how to mow the lawn she’d taken ill and sold the mower to the maintenance guy who helped out around the neighborhood sometimes.
Honestly I don’t know what my carbon footprint is. I suspect it’s no larger than most people living in the States. I drive a gasoline powered car. I eat and drink out of plastic and aluminum. I have petroleum based cleaning products around the house. I’m slowly working to clean all that up. Slowly. I’ve been replacing the CFL bulbs with LED. I use plant-based soap in the shower and an organic toothpaste. I am not able to purchase a new vehicle right now. Something newer should run more efficiently.
A few months back I was driving through my mother’s neighborhood and I saw one of her neighbors using one of these that he’d picked up at one of the big box hardware stores. It’s the Fiskars 18 Inch StaySharp Max Reel Mower. I like it. It makes a similar quiet snipping sound to what I remember from 50 years ago. It took a couple of passes and a bit longer to cut the front yard. The thing is, this isn’t about speed and convenience. There’s more than enough of that in the world.