Columbia subject headings:
Environmental policy--Amazon River Region.
Environmental policy--Brazil.
Environmental sciences--Research--Amazon River Region.
Environmental sciences--Research--Brazil.
Environmentalism--Amazon River Region.
Environmentalism--Brazil.
Harvard subject headings:
Amazon River Region--Politics and government.
Economic development projects--Amazon River Region.
Environmental protection--Amazon River Region.
Environmental protection--Brazil
Princeton subject headings:
Environmental policy--Amazon River Region.
Environmental policy--Brazil.
Environmental sciences--Research--Amazon River Region.
Environmental sciences--Research--Brazil.
Environmentalism--Amazon River Region.
Environmentalism--Brazil.