New UNSW research reveals dramatically higher loss of GDP under 4°C warming
Peer-Reviewed Publication
Updates every hour. Last Updated: 27-Aug-2025 02:11 ET (27-Aug-2025 06:11 GMT/UTC)
New projections by the UNSW Institute for Climate Risk & Response (ICRR) reveal a 4°C rise in global temperatures would cut world GDP by around 40% by 2100 – a stark increase from previous estimates of around 11%.