You can keep everyone buy with thousands of jobs that actually need doing, like planting trees. Britains tree cover is like 12%

In our current society you'd do that by making planting trees somewhat worth money.

Then of course you'd need to control for which trees are planted in which ecosystem, in what ways and at what costs, under what conditions etc.

And in the end you'd of course also need PR and communication people to deal with all the public facing aspects of it ....