1. Id guess an average cloth diaper gets reused more than 100x
2. Think about the mass differences you’re comparing here. A standard plastic grocery bag is about 5 grams of material. A standard cloth bag is around 250. Cloth vs disposable diapers are approximately the same amount of material. This is the “gotcha, vegan! Iceberg lettuce is less efficient on a CO2 per calorie basis than beef! Eat more steak to be greener” type of argument.
3. You’re doing the thing contrarians often do of only counting one side of the ledger, while hand waving away the other. Disposable diapers require water, tree growing, tree cutting, tree transport, tree processing, bleaching, transport, packaging, product transport, disposal transport, disposal processing, etc etc. for each time a diaper is used. Really think about the full cradle-to-grave cycle of these things. Reusables must be washed, yes. But they, importantly, don’t require any of the other steps, which is, y’know, extremely significant. It’s not even remotely plausible single-use diapers are more resourceful than cloth ones.
I think it's plausible that cloth diapers are worse per use than disposable ones due to the mass industrialization of manufacture and resource intensity of cleaning.
You are right that we have to look at the full breakdown of the cradle to grave resource cost.
A washer and dry cycle is about 5 kilowatt hours, which is about the average household energy consumption in China or twice that in India.
Financially, in California it's about $3 per wash for power before accounting for water, soap, ect.
Let's say you got 10 diapers per day and washing every 2 days.
That's 15 cents and 250 watt hours per diaper use.
American use a lot of electricity, so washing diapers would be about a 10% household increase
2. Think about the mass differences you’re comparing here. A standard plastic grocery bag is about 5 grams of material. A standard cloth bag is around 250. Cloth vs disposable diapers are approximately the same amount of material. This is the “gotcha, vegan! Iceberg lettuce is less efficient on a CO2 per calorie basis than beef! Eat more steak to be greener” type of argument.
3. You’re doing the thing contrarians often do of only counting one side of the ledger, while hand waving away the other. Disposable diapers require water, tree growing, tree cutting, tree transport, tree processing, bleaching, transport, packaging, product transport, disposal transport, disposal processing, etc etc. for each time a diaper is used. Really think about the full cradle-to-grave cycle of these things. Reusables must be washed, yes. But they, importantly, don’t require any of the other steps, which is, y’know, extremely significant. It’s not even remotely plausible single-use diapers are more resourceful than cloth ones.