I think you should give this a read. This should convince you to switch to a bidet towel. What I'm surprised about, is that you fail to see how regenerating forests is more difficult than regenerating water. It is very hard to repair the uprooted ecosystem. And no, new trees can not solve climate crisis. You can substitute an eco-friendly detergent. You can clean multiple bidet towels together. Forests, however, takes years to grow, changes in the eco-system can lead to ecological disturbances, and it has to be monitored carefully. This is not the case with water being contaminated with detergent - excess phosphates can cause eutrophication of algae.