The tipping point estimate is revised sharply downward
Lovejoy and Nobre argue in Science Advances that the Amazon dieback threshold lies at twenty to twenty-five per cent deforestation rather than the roughly forty per cent proposed two years earlier, on the grounds that fire, clearance and climate change interact rather than add. The revision is the most consequential number in the debate and it is a judgement about interaction terms, not a measurement.
Historical — it happened, and the record is settled.
Subjects
- The Amazon Dieback Threshold · concept · Amazon Basin, with the southern and southeastern basin most exposed · not located
- Carlos Nobre · person · Brazil · not located
Evidence
Partly verified — Core facts are sourced; some optional detail is deliberately absent.
Amazon tipping point
Supports the revised, substantially lower deforestation threshold for Amazon dieback and the argument that fire, clearance and climate change interact rather than add. V55 verification basis: the article DOI page was probed in this session and returned EGRESS_BLOCKED; neither the article nor any summary of it was retrieved, and the quoted percentage range is stated from the producing model's knowledge.
Science Advances (AAAS) · 2018 · Partly verified
Lovejoy, T. E. and Nobre, C., Science Advances, volume 4 (2018), article eaat2340
Recorded on The Amazon Dieback Threshold
- The tipping point estimate is revised sharply downward
- The threshold question is reframed as compounding disturbance
Related
Related because they share a subject in the Atlas — never because the text looks similar.