Abstract
Most climatic changes predicted to occur in Brazil would reduce yields of silvicultural plantations, mainly through
increased frequency and severity of droughts brought on by global warming and by reduction of water vapor
sources in Amazonia caused by deforestation. Some additional negative eects could result from changes in
temperature, and positive eects could result from CO2 enrichment. The net eects would be negative, forcing the
country to expand plantations onto less-productive land, requiring increased plantation area (and consequent
economic losses) out of proportion to the climatic change itself. These impacts would aect carbon sequestration
and storage consequences of any plans for subsidizing silviculture as a global warming mitigation option.