Rousseff did reject 12 of the 84 articles in the proposed legislation, but environmentalists had asked for all 84 to be vetoed.

The WWF says the new, complex laws will be “extraordinarily difficult to implement” and send “a murky message about Brazil’s commitment to environmental protection”.

“President Rousseff [has created] an uncertain future for Brazilian forests, considering Congress could still cut forest protections even further,” says WWF International director- general Jim Leape.