Planetary Health check 2025
A scientific assessment of the state of the planet
The Planetary Health Check is a yearly report on the state of our planet. It presents the most up-to-date assessments of the Planetary Boundaries, gives thorough introductions into cutting-edge science, and spotlights especially relevant aspects of our planet's health. In this 2025 edition, special focus is placed on the Ocean's role in the Earth system, and assess for the first time that Ocean Acidification is the seventh transgressed Planetary Boundary.
Human activities have pushed Earth beyond its Safe Operating Space. The planet's natural resilience is weakening: global warming is accelerating, ecosystems are showing clear signs of degradation, and early warning signs of tipping points are emerging in key systems. We have entered the Anthropocene — an era where human activity dominates the Earth system.
To saveguard the Earth's resilience and stability, we must bring the planet back into its Planetary Boundaries. These boundaries are scientifically defined guardrails that ensure the Earth's health. Stay within them, and the Earth stays our dependable home — breach them, and we risk irreversible damage to our very own life support system. Today, seven out of nine boundaries have been transgressed.