The climate case for planting trees has been overhyped – but it's not too late
5 hours ago
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- #reforestation
- #climate change
- Reforestation's climate benefits may be overestimated, but swift action can enhance its potential to curb emissions.
- Reforestation absorbs CO₂, storing carbon in trees and soil, but its global impact is limited compared to previous claims.
- 135 countries aim for net zero emissions, with reforestation playing a key role in CO₂ removal.
- China leads in reforestation, storing 7 billion metric tonnes of CO₂ over 40 years, while Australia's efforts are modest.
- Global reforestation potential is 389 million hectares, half of prior estimates, with the Americas and Europe holding the most suitable land.
- Current reforestation commitments exceed suitable land availability, especially in low-income countries with biodiversity constraints.
- A new machine-learning model estimates reforestation could store 4.9 billion metric tonnes of CO₂ annually by 2050, but this is a fraction of fossil fuel emissions.
- High-income nations must increase reforestation commitments and support low-income countries financially.
- Markets valuing nature and involving local communities can boost reforestation efforts.
- Reforestation is not a substitute for reducing fossil fuel emissions or halting deforestation.