# Cryosphere decline beyond safe planetary limits, putting conditions for human society at risk

Source: [Earth News - Earth Science News, Earth Science, Climate Change](https://phys.org/news/2026-11-cryosphere-decline-safe-planetary-limits.html) · 2026-11-13 · Earth & Climate
Page: https://themorning.science/story/cryosphere-decline-beyond-safe-planetary-limits-putting-conditions-for-human-soc-a0888662cb470c97
Kind: research · Impact: medium

## In brief

- New research published at COP31 in Science warns that cryosphere decline has moved beyond a safe planetary boundary.
- The cryosphere covers ice sheets, mountain glaciers, sea ice, permafrost and snow cover.
- The study attributes the decline to human-driven climate change.

## Why it matters

The findings frame frozen-system loss as a planetary boundary issue, meaning it could threaten conditions for human society, which matters for climate science and policy readers.

## Versions

- COP31

## Timeline

- 2026-11-13: Study published in Science and presented at COP31, warning cryosphere decline exceeds safe planetary limits

## Coverage

- [Cryosphere decline beyond safe planetary limits, putting conditions for human society at risk](https://phys.org/news/2026-11-cryosphere-decline-safe-planetary-limits.html) — Earth News - Earth Science News, Earth Science, Climate Change, 2026-11-13

Tags: cryosphere, planetary boundaries, climate change, ice sheets, COP31

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science