I think that a lot of depends how coin is useful for people. It is necessary to create demand in coin.
There are ecological projects.
https://moss.earth/blog/ - Here is written how it important to protect a nature and what already been done.
I think that demand in ecological projects will only grow.
I checked the price of MCO2 token on the site of MOSS. It is growing. It means that now more and more people understand that it is important to protect the nature because we live on one planet.