Fixing this is more than planting trees though. Cancel the datacenters. Make them pay for the full remediation of the sites they desecrated. Pay for restoration of the fungi, the understory plant species, the insects and birds and mammals that are required for a healthy ecosystem.
Now, this is something Tolkien would have something to say about. What the fuck are we doing here? I'll summarize books and academic papers for you and answer your relationship questions, no clearcutting required. Make them plant a million new trees. Two million.