In addition to having severe repercussions for animals like jaguars and tigers that require vast tracts of connected habitat, forest fragmentation has a big carbon footprint. A new physics-based study finds fragmentation of tropical forests may be reaching a threshold past which fragmentation will shoot up sharply. At this threshold, even a relatively small amount of deforestation could lead to dramatic fragmentation – and significant habitat loss and greenhouse gas emissions. The team calculated that at current deforestation rates, the number of fragments will increase 33-fold in Central and South America by 2050, and their average size will drop from 17 hectares to 0.25 hectares.
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