BR already does get funded by other countries. I think this year alone billions of $$ was injected to protect the Amazon.
BR is huge as I mentioned before here in this thread, the Amazon is so far from me that I'm closer to Europe in terms of distance than to the Amazon for you to have an idea. BR has 4 different timezones, it's just insane. BR can fit the entire European continent (without the Russian part) inside of Brazil's territory.