Human activity degraded more than a third of remaining Amazon forest: Study
The Amazon rainforest has been degraded to a much greater extent than scientists previously believed with more than a third of the remaining forest affected by humans, according to a new study.
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The study shows that up to 38
per cent of the remaining Amazon forest area - equivalent to ten times the size
of the UK - has been affected by some form of human disturbance, causing carbon
emissions equivalent to or greater than those from deforestation.
The paper was led by an international team of 35 scientists and
researchers, from institutions such as Brazil’s University of Campinas
(Unicamp), the Amazon Environmental Research Institute (IPAM), the National
Institute for Space Research (INPE), and the UK’s Lancaster University, it said.
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The work is the result of the
AIMES (Analysis, Integration and Modelling of the Earth System) project, linked
to the Future Earth international initiative, which brings together scientists
and researchers who study sustainability, the study said.
The findings, published in the journal Science, are the result
of an analytical review of previously published scientific data, based on
satellite imagery and a synthesis of published data outlining changes in the
Amazon region between 2001 and 2018, the study said.
The authors define the
concept of degradation as transient or long-term changes in forest conditions
caused by humans.
Degradation is different from
deforestation, where the forest is removed altogether and a new land use, such
as agriculture, is established in its place. Although highly degraded forests
can lose almost all of the trees, the land use itself does not change.
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