Earlier quoted context omitted.
The real difference will be made by abolishing Europe's cities and returning that entire continent to Nature. All the forests and animals should be restored and the cities razed. Extant emissions from the people there dwarf the Amazon's deforestation so it's a much better fix.
Europe has been and still is re-foresting, it's much more forested than 100 or 300 years ago, and in the last 30 years there has been a 9% increase in forested areas ( https://resoilfoundation.org/en/environment/eu-forests-growt... )
What the Germans did then, the Brazilians do a fraction of now.
40% forest cover lost. And now, Germany has almost no primary forest. And Germans burn oil and coal and gas like no other.
The net effect of Germany on the Climate is the effect of an Environmental WMD.