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🗞️ Driving the news: A new study reveals that livestock grazing, if managed properly, can increase soil carbon storage, potentially mitigating climate change
• However, excessive grazing commonly leads to soil erosion and carbon loss, making lands net carbon sources
🔭 The context: Conducted by a team led by Cesar Terrer of MIT, the study analyzed 1,473 soil carbon observations worldwide to understand grazing's impact on soil carbon stocks
• It highlights the complex relationship between grazing intensity and soil carbon sequestration
🌍 Why it matters for the planet: The study estimates 46 petagrams of soil carbon have been lost due to overgrazing in recent decades
• Optimizing grazing intensity could sequester 63 petagrams of carbon, offering a significant counter to fossil fuel emissions
⏭️ What's next: The findings suggest the need for global adjustments in grazing practices to achieve optimal carbon sequestration
• This involves reducing grazing intensity on approximately 75% of grazing lands and possibly shifting diets to reduce meat consumption
💬 One quote: "If the world seriously reduces the amount of grazing, you have to reduce the amount of meat that's available for people," says Cesar Terrer, assistant professor of civil and environmental engineering at MIT.
📈 One stat: "46 petagrams [billion metric tons] of soil carbon have been lost in the last few decades due to grazing."
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