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BackAuthor Correction: The hard road back from overshoot
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Ecosystem Impact
Temporary temperature overshoot risks irreversible damage to critical biodiversity hotspots and carbon sinks, such as coral reefs and peatlands, which may not recover even if temperatures are later lowered. High-peak temperatures during the overshoot period can trigger ecosystem state shifts, turning forests from carbon sinks into carbon sources due to increased wildfire frequency and metabolic stress.
Systemic Reality
The study highlights the extreme financial and logistical risks of relying on large-scale carbon dioxide removal (CDR) technologies that are currently unproven at scale. It signals a necessary shift in policy frameworks away from 'overshoot-and-recover' strategies toward more aggressive near-term mitigation to avoid the long-term economic burdens of climate-induced tipping points and permanent sea-level rise.
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