The rewrite of the Madison Comprehensive Plan, Imagine Madison, is ongoing right now. At the website, https://imaginemadisonwi.com/ , you can provide input on a range of strategies and on the future land use map. Input opportunity will end June 21 so please give yours ASAP.
For each of the various proposed strategies there is a like button to register support. You can also submit new strategy ideas.
One of the strategy groups is Green & Resilient. Within this group there are several tree specific strategies. So at a minimum head out and support these.