Earth Has Overshot Key 'Planetary Boundaries,' Scientists Warn.

A review of Earth science conducted by over 60 researchers and published in The Lancet Planetary Health warns that human activity is endangering eight critical life-support systems on the planet. Seven of these systems have already surpassed safe limits, including climate, freshwater systems, biodiversity, and soil nutrients. The study suggests that countries should preserve at least half of the planet's ecosystems, limit groundwater extraction, and set strict limits on the use of nitrogen and phosphorus fertilizers to prevent further destabilization. The researchers argue that radical societal changes, such as wealth redistribution, are necessary to ensure a habitable planet. However, some scientists question the practicality of the recommendations and the concept of a clear line separating safe and dangerous zones. [Extracted from the article]