Unless you are in a coma, you are learning every day of your life. The problem is not that wisdom doesn't exist, but that wisdom has not been empowered. To empower wisdom means to respect it as if it were far more important than information or expertise. None of this is necessarily wise. I don't dismiss that as of no value at all, but I also know that is not wisdom.
Wisdom is examined experience.
The more opportunity you give people to examine their experience, the wiser they become. It's as simple as that. In fact, people spend a lot of their time doing that. What we need when we have a great environmental problem is a couple of wise souls. We need people who have lived in this neighborhood and know this neighborhood or who know this region from personal experience.