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10 cards from this deck
Persistent degradation of dryland ecosystems by humans & climate
12°C lower (18,000 years ago)
8,000 yrs ago: warmer temps, minimal desert extent
Greatest global rainfall loss in last 25 years of century
Strips grass cover, depletes soil nutrients, increases erosion
Continuous farming, soil fertility declines, exposes soil
Demand for fuelwood for cooking, heating, and building
25% (one quarter)
1 billion people in 100 countries
2-5°C increase
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