Captain Ian McBeth,first officer Paul Hudson and flight engineer Rick DeMorgan died when their C-130 Hercules water bomber crashed near Cooma on Thursday.
The group will aim at combating the rainforest's fires and bypassing right-wing President Jair Bolsonaro.
Bolsonaro's remarks about the American actor are part of a wider government campaign against environmental non-profit groups operating in Brazil.
The Brazilian President campaigned last year on promises to open up the Amazon to more agriculture and mining.
Nearly 1 million hectares of forest cover has been lost in the year to July 2019. The highest net loss in 10 years.
The Amazon is burning. How bad are the fires and who started them? Why are Brazilians talking about flying rivers and falling skies? And does this spell doom for the lungs of the Earth?
President annulled a 10-year-old regulation that had banned the expansion of sugar-cane planted in the Amazon,in the Pantanal and in indigenous and reforested areas.
Illegal loggers ambushed an indigenous group that was formed to protect the forest and shot dead Lobo,one of its leaders,and wounded another.
The Kayapo chief has become a symbol of the fight to stop deforestation in the Amazon and his name forward as a candidate for the 2020 Nobel Peace Prize.
Brazil is inviting investment from global pharmaceutical companies,cosmetic-makers and other industries to develop methods to harvest plant-based materials.
The execution-style death of an indigenous rights investigator is just the latest targeting those who stand up for their patch of forest.