Bidets vs. Toilet Paper for the Environment
scientificamerican.com
scientificamerican.com
5 years of toilet paper means about 500 rolls per person. A family of 4 would use 2000 rolls so about 400 kg of paper. The cost to transport, produce, package, and dispose of that much toilet paper is clearly higher by the end of the device's life.
What is the impact of acquiring (mining?) the ceramic and metal parts, and then manufacturing these into a bidet and fixings?
I think it's likely that the impact of the bidet is lower by the end of its lifetime, but an argument which says, 'manufacturing and installing a bidet has a similar impact to producing x rolls of toilet paper, and so after y years then the bidet can be considered better for the environment' would be much more compelling to me because it doesn't look like it's trying to hide half of the argument