Browsing Serials by Subject "DEFORESTATION"
Now showing items 1-4 of 4
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Amazonian Deforestation Slowing but May Already be at a Tipping Point Mato Grosso, Brazil - UNEP Global Environmental Alert Service (GEAS) 2011
(2011)At the beginning of the 20th century, roughly 80 percent of the 5 million km2 "Legal Amazon" region of Brazil was forested (Kirby and others 2006). Highways built in the 1950s and 1960s, along with government incentives ... -
Only Scraps of the South American Atlantic Forest Remain—Eastern Paraguay - UNEP Global Environmental Alert Services (GEAS) - September 2010
(2010-09)Prior to the mid-20th century, an extensive subtropical rain forest covered much of the Brazilian coastal plain, eastern Paraguay and part of northern Argentina. The forest supported over 20 000 plant species, many of them ... -
Plant Growth Declined Over the Past Decade - UNEP Global Environmental Alert Service (GEAS) September 2010
(2010-09)Calculating Net Primary Production (NPP) is the first step in quantifying the amount of carbon plants fix from the atmosphere and accumulate as biomass. NPP is an important component of the global carbon cycle, but it is ... -
Wildland Fires, a Double Impact on the Planet - Environment Alert Bulletin 3
(2004-06)Wildland fires annually burn an area half the size of Australia and generate nearly 40% of total anthropogenic carbon dioxide (CO2). Their impact in terms of deforestation, climate change and loss of biodiversity is ...