Having spent years increasing production and acreage, Embrapa is now turning to ways of increasing the intensity of land use and of rotating crops and livestock so as to feed more people without cutting down the forest.

ECONOMIST: Brazilian agriculture

Tourism is creating other problems for the local environment, too, including increased population density, over-dependence on wood as a fuel and construction source and the overgrazing and cutting of mountain slopes to feed livestock.

BBC: Everest's growing problem