Describe the main effects of climate on the life of people in the amazon basin
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As habitat destruction trends interact with climate change, the concern is that the Amazon will be caught up in a set of “feedback loops” that could dramatically speed up the pace of forest lost and degradation and bring the Amazon Biome to a point of no return. This threshold, also referred to as a tipping point, may occur when Amazonian forests die and are progressively replaced by fireprone brush and savanna (ecological tipping point), and rainfall is inhibited on a regional scale (climatic tipping point).
The climate and deforestation-driven substitution of forests to savanna-like and semiarid vegetation has been dubbed the Amazon forests’ “die back” (Cox et al. 2000, Cox et al. 2004; Nobre et al. 1991; Oyama and Nobre 2003). While there is still debate among scientists about this concept, some climate-simulation vegetation models predict that such a die-back could occur by the end of this century.
For some scientists (Nepstad, 2008), however, this timeframe may be optimistic as these models do not include land-use change or the synergistic effects of deforestation and regional climate change. If these factors were taken into account, we could face a dire scenario in which current trends in livestock, agriculture, logging expansion, fire and drought could destroy or severely damage 55% of the Amazon rainforest by the year 2030 (Nepstad 2008).
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The climate and deforestation-driven substitution of forests to savanna-like and semiarid vegetation has been dubbed the Amazon forests’ “die back” (Cox et al. 2000, Cox et al. 2004; Nobre et al. 1991; Oyama and Nobre 2003). While there is still debate among scientists about this concept, some climate-simulation vegetation models predict that such a die-back could occur by the end of this century.
For some scientists (Nepstad, 2008), however, this timeframe may be optimistic as these models do not include land-use change or the synergistic effects of deforestation and regional climate change. If these factors were taken into account, we could face a dire scenario in which current trends in livestock, agriculture, logging expansion, fire and drought could destroy or severely damage 55% of the Amazon rainforest by the year 2030 (Nepstad 2008).
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Isnam522:
nice answer!!
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