Intensive agriculture alters headwater streams, but our understanding of its effects is limited in tropical regions where rates of agricultural expansion and intensification are currently greatest. Riparian forest protections are an important conservation tool, but...

In 2006 Brazil passed legislation allowing concessions for industrial timber harvest in public forests. This decision was part of a broader effort to control deforestation, which had spiked to its second highest level, of about 25,000 km2, in 2004. Specifically,...