Biodiversity loss and land degradation create a dangerous climate feedback loop: damaged ecosystems lose their ability to absorb CO2, releasing stored carbon and reducing natural climate resilience, which accelerates warming, further damaging ecosystems and intensifying climate impacts like wildfires, creating a vicious cycle of decline.
Biodiversity loss and land degradation create a dangerous climate feedback loop: damaged ecosystems lose their ability to absorb CO2, releasing stored carbon and reducing natural climate resilience, which accelerates warming, further damaging ecosystems and intensifying climate impacts like wildfires, creating a vicious cycle of decline.
Key natural carbon sinks, like forests (e.g., Amazon) and soils, weaken as they degrade, shifting from carbon absorbers to emitters, worsening the climate crisis and threatening human societies dependent on these resources.
How the Loop Works
Land Degradation & Biodiversity Loss:-
Deforestation, soil erosion, and habitat destruction reduce plant and microbial life (biodiversity) in ecosystems like forests, peatlands, and soils.
Reduced Carbon Sequestration: -
Healthy ecosystems are major carbon sinks, pulling CO2 from the atmosphere. Degradation diminishes this capacity, meaning less carbon is removed.
Carbon Release: -
Degraded soils and forests, especially after fires (fueled by climate change), release stored carbon back into the atmosphere.
Amplified Warming: -
This increased atmospheric CO2 traps more heat, intensifying the greenhouse effect and accelerating global warming.
Worsened Ecosystem Stress: -
Higher temperatures and extreme weather events further stress ecosystems, causing more biodiversity loss and making them even less resilient, restarting the cycle.
Examples
Amazon Rainforest: -
Now releasing more carbon than it absorbs in some areas due to deforestation and warming.
Soil: -
Loss of soil biota (bacteria, fungi, worms) impairs soil's ability to store carbon and water, increasing erosion and desertification.
Solutions-
Addressing both crises simultaneously is crucial, involving reforestation, sustainable agriculture, protecting marine areas, and drastic cuts in emissions to break this vicious cycle.
To understand how different ecosystems respond to these combined pressures, would you be interested in a breakdown of feedback loops in forests versus oceans?
MJF Lion ER YK Sharma
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