Environmental Risks Monitor — W/E 4 April 2026
Planetary Health Check 2025 reports ocean acidification boundary breached; 7/9 planetary boundaries exceeded, increasing probability of multi-domain cascade risk.
The Signal
Planetary Health Check 2025: ocean acidification boundary crossed; 7/9 boundaries exceeded
Stockholm Resilience Centre highlights that the 2025 Planetary Health Check finds seven of nine planetary boundaries exceeded, with ocean acidification breached for the first time. This is a structural regime signal: the buffering capacity of the Earth system is degrading across multiple domains simultaneously, raising the probability that regional shocks (heat, water stress, food) cascade into governance and security stress faster than institutions can adapt.
Key developments
- Planetary boundaries baseline — Stockholm Resilience Centre highlights the 2025 Planetary Health Check: seven of nine planetary boundaries exceeded; ocean acidification breached for the first time. Source: https://www.stockholmresilience.org/research/planetary-boundaries.html
- IPCC governance — IPCC-64 (24–27 March 2026, Bangkok) advanced AR7 work programme and upcoming deliverables (Special Report on Climate Change and Cities in March 2027; CDR/CCUS methodology report in 2027). Source: https://www.ipcc.ch/2026/03/23/press-release-ipcc64-opening/
Cross-monitor implications
- Democratic Integrity (WDM) — Environmental stress is a contextual fragility multiplier: it reduces institutional capacity and increases elite incentives for coercive control under scarcity.