Global human population is pushing Earth past its breaking point
Phys.org • • science
Key Points:
- New research published in Environmental Research Letters reveals that Earth has exceeded its sustainable capacity to support the global population, threatening food security, climate stability, and human well-being.
- The study identifies a major shift in population dynamics since the mid-20th century, with population growth rates slowing despite continued population increase, projecting a peak between 11.7 and 12.4 billion by the late 2060s or 2070s.
- Researchers estimate a truly sustainable global population to be around 2.5 billion, highlighting a significant overshoot driven by fossil fuel reliance, which has masked environmental degradation and accelerated climate change.
- The study links population size more strongly than per-capita consumption to rising global temperatures, ecological footprints, and carbon emissions, emphasizing that both population and consumption intensify environmental stress.
- The authors urge immediate global action to reduce consumption, stabilize population growth, and protect natural systems to avoid worsening crises and secure a stable future for humanity and the planet.
