Eu não posso entender: Your proposed solution is that Brasil should carry-on doing whatever it wants with the Amazon Rain Forest and other countries should address their own CO^2 emissions, correct?
What is the argument, then, when you consider that Brasil will surpass those very same countries in CO^2 emissions when it no longer has a sink to counteract the effects of its own emissions?
Essentially, you're saying, "Everyone should look after their own messes and let us do what we want," whilst largely ignoring the fact that Brasil would - based on your proposition - be the resultant Sampson to the environment as a direct byproduct of that very premise.
Why can't it be both that the "world's lungs", as the Amazon Rainforest is oft coined, not be devastated and other countries fix their emissions?
This "muh sovruntee" mentality is precisely why we're stagnating (or even regressing) any progress on the positive feedback loop that we're currently sliding into. For example (if I understand correctly), it's why the states backed out of the Paris Agreements[0].
[0] - https://en.wikipedia.org/wiki/United_States_withdrawal_from_...