Clearing out my closets - old phones

I am in the process of clearing out some of my closets. Here are some of my old mobile phones (I have a couple more that are missing from this photo) - although some are not mine but are of family members who have also upgraded. I used to update them quite regularly, but they generate a lot of environmental damage through the use of toxic materials so I don't update them as much anymore.

Apparently in Hong Kong, Japan, Korea, Singapore and such it is normal for people to buy a new phone every month or so - it must cause a lot of environmental damage.