Our well-being and survival depend on a healthy planet. There can be no safe and prosperous future if we destabilize the climate, deplete our oceans, degrade our land and forests, and undermine the web of life that sustains us all.
We are living beyond the Earth’s planetary boundaries. The Planetary Boundaries (PB) framework defines humanity's "safe operating space" within Earth's nine life support systems. For each system, it quantifies the limits that we must stay within for humans and nature to thrive. The 'boundaries' for each system are explained as zones of uncertainty and zones of high risk. If we cross these boundaries there is increased risk of causing irreversible environmental damage and negative human impacts.
Crossing multiple boundaries runs the risk of even greater cumulative impacts because of the way the systems interact with each other. Scientists estimate we have already crossed the boundaries for climate, biodiversity, phosphorus and nitrogen and land systems - ie. four out of the nine systems.