Firstly, to criminally prosecute with full force those who profit financially from land clearing. I even suggest inaugurating a specific prison for crimes against the environment, to increase its public significance.
Then, promote an economic fund for reforestation, charged exclusively with replanting with native species. Funding could come from fines for environmental crimes, among other sources. All this is incompatible with the fiscal opacity resulting from the current transnational financial system and the ‘tax havens’ (which correspond to ‘earthly hells’).
Technically it is not particularly challenging, as you can see from the effort that filmmaker Sebastiao Salgado and his partner have made in the Rio Doce basib, in Brazil.